List of Abbreviations - Indian Space Research … · Web viewRequest For Proposal of Quiet zone Scanning System Space Applications Centre (SAC) Indian Space Research Organisation

Request For Proposalof

Quiet zone Scanning System

Space Applications Centre (SAC)Indian Space Research Organisation (ISRO)

Ahmedabad- 380015

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Table of Contents

List of Abbreviations..............................................................................................................3

1. Introduction.....................................................................................................................4

2. System description..........................................................................................................6

3. Scope of Work.................................................................................................................8

4. Applicable Documents / Drawings / Sketches...............................................................9

5. Design Specifications.....................................................................................................12

6 Vendor Qualification Criteria......................................................................................18

7 L1 Selection Criteria:....................................................................................................18

8 General Technical Terms and Conditions...................................................................18

9 Development Plan......................................................................................................... 20

10 Deliverable Items.......................................................................................................21

11 Acceptance Test Procedure.......................................................................................21

12 Format of Technical bid............................................................................................23

13 Format of Commercial bid.......................................................................................30

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List of Abbreviations

SAC– Space Applications Centre

CNC– Computer Numerical Control

AUT– Device under Test

QZ– Quiet Zone

TTL– Transistor Transistor Logic

ATP– Acceptance Test Procedure

ATR– Antenna Test Range

RFP– Request for Proposal

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1. Introduction

SAC intend to procure a 2-axis CNC scanner system with a linear scan capability of 5.6 m equipped with a rotary stage (polarization positioner) providing a roll capability of ±180o (Refer figure 1). This scanner system shall be installed on the AUT positioner of ATR at a height of approx. 5.5 m (Refer figure 2). AUT Positioner roll axis provides an additional polar axis to the proposed Scanner enabling data acquisition along all phi cuts encompassing a circular area of 5.6 m (Refer figure 3). A probe antenna, mounted on the polarization positioner on the carriage assembly, moves linearly on the rail and acquires data over the travel length of 5.6 m (Refer figure 3).

The foresaid system is used to map field variations caused by extraneous signals arriving at the test zone (QZ) of existing ATR.

Figure 1: 2-Axis Linear Scanner in dismounted condition

Figure 2: AUT positioner

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Linear Slide/Carriage (Travel Length 5.6m)

Figure 3: Linear scanner mounted on AUT positioner with different phi cuts

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Linear scanner @ Phi 90



2. System descriptionThis system comprises of a 5.6 m linear rail and a carriage assembly with a rotary stage (polarization positioner) carrying a probe antenna. Front face of linear rail shall be covered with 8 inch pyramidal RF absorber. Linear rail is aligned horizontal, vertical or in any other orientation by the ATR AUT Roll positioner and then Probe antenna moves linearly on the rail and acquire the RF field data.

Linear and Rotary motions are controlled by a programmable motion controller and readout positions are recorded in the computer. As the RF probe antenna moving along with the carriage assembly reaches to the commanded position on the rail, a TTL trigger signal (negative edge 24V TTL to be stepped down to 5V for input to the PNA) is generated and given to the RF receiver. RF receiver then acquires the data at that position and waits for another trigger pulse (refer figure 4) for different commanded positions. This sequence is repeated until one linear scan is completed. Probe antenna is then rotated using the rotary stage and linear scan is repeated to acquire data for another polarization. Figure 5 shows the block diagram of the typical test set up.

Linear Rail Construction: Travel table should move on LM guides mounted on both side walls of structure. Movement to travel table should be given by Rack and Pinion mechanism on side walls as per the sketch. Both mounting surface should be parallel to each other and has to be machined in a single setup.

Motors and Drives: Digital AC servo/Stepper motors with brakes and drives for both axes to achieve specified positioning accuracies and repeatability mentioned under specification table (section 5).

Controller: PC based programmable controller with controller software having dedicated features like home/ limit/ emergency stop/ feed rate: continuous and jog mode/position input / work offset/ save data / auto mode etc.

Special consideration: 250 mm U TYPE gap shall be maintained to accommodate absorber above linear guides.

Scanner Weight: Total Scanner weight should not exceed 0.75 ton.

Data Acquisition Software: Vendor has to design software for mapping the field variation over defined 5.6m (dia) test zone. The Acquisition module should support multi frequency CW, List and sweep frequency mode measurement. It must display the acquired Amplitude and phase raw data on the screen in real time to indicate the degree of completion and save the data in the prescribed format. Capable of operating/controlling the subsystems of the receiver individually. Also it should include provision of Data Import/Export options in different formats (jpeg, bmp, png etc).

Page 6 of 30Figure 4: Trigger sequence

Control cable

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Figure 5: Setup schematic block diagram

for single frequency m

easurement

Encoder Feedback

Motion Controller

Drive Unit

-- Control cable-- RF cable-- CFE

Control command

10dB Coupler RF Source

Data Acquisition PCPNA (N5224A)

TTL Trigger

Polarization Positioner

3. Scope of Work 3.1 Vendor has to design and develop 2-Axis computer controlled linear scanner including

structural analysis, generation of 3-D models and fabrication drawings in CAD software.3.2 Vendor has to submit detailed design along with CAD model and analysis report to SAC for

approval. SAC shall approve/comment on the design which vendor should implement. At this stage, design discussion will be required between vendor design team and SAC team.

3.3 Vendor shall also submit the design along with CAD model of the transportation container to SAC for approval.

3.4 After clearance of design from SAC, vendor can proceed for procurement of standard item for Fabrication and Assembly.

3.5 Vendor has to ensure the compatibility of developed software with RF instruments available at SAC.

3.6 Vendor should submit the beta version of the developed software to SAC for comment and finalization.

3.7 Vendor has to demonstrate Testing and calibration related to motion mechanism of linear scanner in presence of SAC team at Vendor’s end as per ATP.

3.8 After getting clearance from SAC, Vendor has to deliver the scanner along with controller and software at SAC.

3.9 Vendor has to install the above scanner system at Antenna Test Range at SAC for Performance verification of specifications as per ATP specified in section 9.

3.10 Vendor is required to furnish the test report detailing all the achieved specifications against the requirement.

3.11 Vendor has to demonstrate full functionality of developed software with positioner controller and RF test setup as per ATP.

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Figure 5: Setup schematic block diagram

for single frequency m

easurement

4. Applicable Documents / Drawings / Sketches 4.1 Sketch of Linear Scanner with Rotary table (to describe requirements only).

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4.2 Sketch for Scanner configuration (Side and Top view).

4.3 Sketch for Mounting Configuration- 1 and Configuration-2 (for Vender reference only)

4.4 Schematic arrangement showing detachable wheel assembly.

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Rotation Axis (Z)

X-Axis

Z-Axis

Y-Axis

4.5 Sketch showing parallel and perpendicular Axes of the Scanner.

4.6 Sketch for Test Range AUT Positioner interface plate to 2-Axis Scanner Adapter fabrication (For vendor’s reference).

AUT Positioner Capabilities: (for reference) AUT Weight: 1000 Kg (max.) Bending moment: 10,000 NM from polarization turntable.

AUT Positioner Interface at ATR: (for reference)

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5. Design Specifications

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Sr. No. Description Specification

5.1 Linear Stage

5.1.1 Linear- Axis Travel RangeMinimum: 5600 mm or maximum possible without increasing overall dimensions

5.1.2 Over all Dimension(6.1m x 1m x 1m) L x W x H

± 50 mm in all dimensions

5.1.3

Overall Position Accuracy over the entire range of travel (in the plane of scan) ± 0.5 mm or better

Readout Resolution 0.01 mm minimum

5.1.4 Repeatability < 0.15mm

5.1.5

Travel Table + Polarization Positioner (including U bracket, motor over all travel mass) + Probe (max 15 kg provided by SAC)

Maximum 65 kg

5.1.6 Planarity along linear travel range Better than 0.2 mm (rms)

5.1.7 Braking systemAutomatic firm Locking should be confirmed at each stop of travel

5.1.8 Speed100 to 800 mm/minute and it should be programmable in between the specified range

5.2 Rotary Stage (Polarization Positioner)

5.2.1 Roll-Axis (Rotary Stage) +/- 180 deg. (continuous)

5.2.2 Travel Table diameter 300 mm ± 10 mm

5.2.3 Angular Accuracy Better than ± 0.20 deg.

Readout Resolution 0.01 deg. Minimum

Repeatability < 0.05 deg.

5.2.4 Total mass of rotary stage & motor Maximum 50 kg

5.2.5 Total mass on rotary stage (Probe provided by SAC) Maximum 15 kg

5.2.6 Interface with Linear RailU-bracket having a clearance of 10 inches (250mm) to accommodate RF absorbers.

5.2.7Perpendicularity between Rotary Stage axis and linear travel axis Better than 0.1 deg.

5.2.8Parallelism between AUT Pol. Positioner Axis and Scanner Polarization Positioner Axis (refer section 4.5)

Better than 0.1 deg.

5.2.9 Speed upto 60 deg./min and controllable

5.3 Overall weight of the linear scanner including rotary stage (excluding probe) Preferably less than 750 kg

5.7 General specifications:

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Sr. No. Description Specification Remark

5.7.1 Materials

Used Material should be from standard make with assured quality (Aluminium or its alloy with PU paint). Zinc chromate primer & PU paint for whole structure

Vendor has to provide Material’s chemical analysis report if asked by SAC.

5.7.2 Standard components

Should be of standard Make from reputed manufacturers with National/International standards. If it is required to use any other brand not specified in following list due to some constraint, it should be reported to SAC and Vendor has to take prior approval from SAC before use

5.7.3 Linear Guides with Rack and Pinion THK Make LM guides should be

of precision grade

5.7.4 All Types of Bearings and Plummer blocks SKF/FAG

5.7.5 All Drive Motors with or without gearboxes Siemens or equivalent

Should ensure smooth acceleration/ retardation with suitable S-curve characteristics for jerk free operation

5.7.6 All Electrical/Electronic components and Cables

From Standard Manufacturers conforming to National/International standards

5.7.7 Manufacturing/Fabrication As per Industrial standards

5.7.8 Welding As per Industrial standards

Should be free from any defects. Appropriate Test has to be carried out in case of criticality

5.7.9 Surface Treatments and Painting

As per Design requirements

Should be followed Standard process and procedure adopted in Industry

5.7.10 Limit switch for linear axis Electrical Limit switches and Mechanical Stops

To prevent overshooting/Accident

Proper Flexible Cable On back side of scanner

6 Vendor Qualification Criteria

1) Vendor has to mandatorily give point-to-point compliance statement of every point of the full

RFP and with the values/description as per Section-5. Wherever the specifications are not met,

vender should give the minimum specifications (values) met with justifications for the same.

2) Compliance statement without any justification and supporting technical document as proof

shall lead to rejection of the offer.

3) Vendor has to treat this offer as a TURNKEY solution. The vendor who will quote for all the

items and gets technically qualify will be considered as a valid offer.

4) Those parties who have backed off earlier after declaring L1 should be barred from the

tendering.

7 L1 Selection Criteria:

1) The lowest offer shall be computed based on sum of prices of all the items and their quantities

including taxes.

8 General Technical Terms and Conditions

8.1 At the time of quotation submission8.1.1 Conceptual sketch is attached herewith only for understanding of the requirements; Vendor has

to come out with their own feasible options. For more than one feasible options, vendor has to quote separately and specifically for each with merits and demerits.

8.1.2 Vendor has to mention that in which softwares they will carry out all CAD Modeling, Structural Analysis, Drawings, and any other documentation.

8.1.3 Vendor has to provide detailed schedule of time required for all activities along with quotation.8.1.4 Vendor should give the price break-up as per the following details:

Design and Analysis activitiesFabrication activitiesBought out itemsData Acquisition SoftwarePacking, Forwarding, installation, commissioning and trainingPerformance demonstrationWarranty and extended warrantyMiscellaneous

8.1.5 Vendor has to specify validity of the quotation which should be valid for minimum 120 days from the last date of submission of quotation.

8.1.6 Vendor has to provide the details of similar machines and equipment’s supplied in the past with full details and addresses of the parties to whom he has supplied. Relevant purchase orders and photographs may be attached.

8.1.7 Vendor has to provide the full details regarding available machines/qualified manpower and infrastructure to carry out this job at their own work place. If there is any need for any job,

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which requires off loading or sub-contracting to other parties, please provide full details of available facilities at sub contractor’s work place.

8.1.8 Vendor has to quote for the storage/transportation container as an option.

8.2 After receiving Purchase Order8.2.1 Scanner has to be designed for use in Laboratory, which is clean room, so it should not be

having any oil leakage or expel any type of contamination. If lubricant is used, then it should be properly sealed. Solid or Dry lubricant may be preferred.

8.2.2 Vendor has to submit the Design Report with detailed Design Calculations, CAD Models, Fabrication and Assembly drawings, Finite Element Analysis reports, Technical specifications with supporting documents/brochures for standard/bought out components/parts etc for the design discussion to be held at SAC, Ahmedabad and the Vendor has to incorporate the suggestions made by the review committee formed by SAC.

8.2.3 Vendor has to consider and design the scanner for the life of 10 years for satisfactory operation.8.2.4 Vendor has to submit progress report on regular basis and whenever asked by SAC.8.2.5 Vendor has to demonstrate and prove the performance as per the specifications (given in

Section-5) including accuracy, through mock-up assembly at vendor’s site after fabrication of the scanner. All necessary calibration tools, measuring instruments including Laser Tracker System should be arranged by party for performance evaluation at his own cost.

8.2.6 Vendor also has to work out installation requirements at location (i.e. SAC - Ahmedabad) according to available resources and facility. For any other requirements (like Men, Machines, equipments, instruments, tools, logistics etc.), vendor has to arrange their own resources. No extra charges will be paid for any of this arrangement.

8.2.7 Vendor has to deliver the scanner in its specially designed metallic container to prevent any type of handling and environmental damage during transportation.

8.2.8 The Scanner has to be delivered to SAC by the Vendor, which will be followed by the installation and commissioning. After installation and commissioning of the scanner at SAC, Vendor has to demonstrate performance as per the specifications given in Section-5.

8.2.9 Vendor has to submit all technical details of Scanner as well as bought out components with its Final Design, Assembly, operation, maintenance and Electrical/Electronic circuit diagram manuals. Vendor also has to submit final drawings/documents duly approved in all respects in soft as well as Hardcopy (2-Nos.) to SAC.

8.2.10 Schedule: Vendor has to complete total work within 6-Months from the date of the acceptance of purchase order. This total work has to be divided in the following activities:

i. Design and Analysis submission ii. Structural and Mechanical Design discussion will be required with SAC team

after submission of design drawings and CAD model of the scanner by the vendor.

iii. Final Design and Fabrication drawings submission iv. Fabrication, assembly and performance demonstration at Vendor’s placev. Packing and Forwarding, installation and performance demonstration at SAC

i i i ii ii iii iii

3 weeks 2 weeks 2 weeks

iv iv iv iv iv iv iv iv

8 weeks

iv iv iv iv iv iv iv iv8 weeks

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v vTotal 25 weeks

2 weeks

8.2.11 Warranty Terms: Vendor has to give assurance and warranty certificate/s for trouble free operation for the minimum period of 2-Year after the certificate of satisfactory installation at SAC (from SAC authority) for any defects in parts/components and/or workmanship. Vendor has to solve the problem by Replacement and/or Repairing. For any of the bought out items, vendor will be totally responsible for satisfactory operations for the warranty period and he has to arrange for any replacement/repairs. No extra payment will be made for any of these activities.

8.2.12 Vendor has to quote separately for Extended Comprehensive Warranty for another 1-Year (after the completion period of basic warranty) covering all the aspect of service at installation site (i.e. SAC) including all parts /components/service for designed performance of the Scanner.

8.2.13 During the period of warranty and extended warranty, one preventive maintenance per year should be provided by vendor.

8.2.14 Vendor has to consider the incorporation of the requirement of minor changes (<5% of the total cost) in specification, if any, during the execution of contract, free of cost.

8.2.15 The frequent discussions at SAC as well as at vendor’s end will be required during the realization of the scanner. Vendor has to arrange for visit at SAC for any such activities, as and when needed. Vendor has to arrange for such visits on their own.

9 Development Plan

There will be a regular review of the complete activities of vendor by SAC from time to time as per the detail given in Table.

Sr. Development Stage Responsibility Remarks

9.1 Finalization of configuration Vendor + SAC

Vendor will prepare configuration as per requirements of SAC and get approval from SAC.

9.2 Design Vendor Vendor prepares design documents and drawings

9.3 Fabrication and Assembly Vendor Development of all elements

by vendor

9.4 Testing and EvaluationVendor (with SAC participation)

Vendor has to show functionality and testing of the unit at Vendor’s site

9.5 Installation and Acceptance Test Vendor + SAC

Vendor has to install and conduct acceptance tests at SAC premises

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10 Deliverable Items1. 2-Axis Computer controlled Scanner2. Motion Controller with motors, drive units, necessary DIO cards and control software.3. Computer for Data Acquisition 4. Data Acquisition Software5. All Power / Data Cables for connecting Scanner and Controller6. All Power / Data Cables for connecting Controller and Computer7. All required Electronic/Electrical Hardware8. Canvas c-over for the linear scanner structure9. All required software with media and manuals10. Tools and accessories for mounting & dismounting and maintenance of the scanner11. Design Documents and manuals in Soft as well as Hard copy (2-Nos.)12. Storage/Transportation Container as specified in section 5.

11 Acceptance Test Procedure1. Acceptance test will be carried out in two stages. All alignment related measurements in all

stages will be carried out using precision Laser Tracker measuring instrument. In Stage-1 tests will be carried out during mock-up assembly at vendors’ site (Pre dispatch clearance) and in Stage-2 tests will be carried out after Installation at SAC.

2. Ensuring the measurement parameters such as planarity, axis orthogonality, repeatability, overshoot, undershoot etc. are planned using LASER tracker system. The measurement of carriage position (polarization positioner) will be carried out at predetermined discrete carriage locations and the same should be processed to provide measurement parameters. AUT positioner adapter planarity should also be measured using Laser Tracker System.

3. Ensure the safety load test & movement of all axis.

4. Mechanical Design requirements from the RFP document and respective design values should follow as specified in table-1. Any deviation observed may be accepted by SAC after RF impact analysis.

Table-1

Mechanical design Parameters Requirement values

Actual Design / measured

valuesRemarks

Linear axis travel Minimum 5600mm

Overall position accuracy ±0.50mm or betterReadout Resolution 0.01mm MinimumRepeatability <0.15mmPlanarity for scan range <0.10mm (rms)

For Polarization PositionerPolarization motor angular accuracy ±0.2 degree Readout resolution 0.01 degree minRepeatability 0.05 degree minPerpendicularity between linear and rotary stage <0.1 degree

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Parallelism between AUT polarization positioner Axis and scanner pol. positioner axis

<0.1 degree

Overall mass of the system <750Kg

5. Acceptance Test Procedure (ATP) documents should be provided by the vendor and finalised with mutual agreement between SAC and Vendor.

6. Full functionality demonstration with available positioner controller should be carried out by the Vendor.

11.1 Acceptance Test plan for Linear Stage

I. Positional Accuracy In Stage-1 & stage-2 coordinate points will be taken every 50mm along the X-axis for the full

travel length. 113 Number of coordinate points shall be measured using Laser Tracker along X-axis. The laser tracker measured value will be considered as actual value (true value). Ai

The value on digital read out through the encoder will be the displayed value. Di

The error Eiof the ith coordinate point shall be computed as.Ei=Di−Ai

The error at any coordinate point must be within specified positional accuracy. 3 such measurement set will be taken to ensure the accuracy of the linear scanner.

II. Repeatability In Stage-1 total 6 Number of coordinate points will be measured in the X-Y Plane. Points will be chosen randomly. Each coordinate point is measured 6 times. The measurement is through digital read out values. The mean of the 6 measurements taken at a single random coordinate point is taken as

repeatability value of that coordinate point.

11.2 Acceptance Test plan for Rotary Stage

III. Angular Accuracy and repeatability of Polarization Positioner For angular position measurement at polarization positioner is done relative to coordinate

system placed at the centre of rotary table and is parallel to coordinate system defined in the section 4.1

In Stage-1 & stage-2 6 angular points will be measured for angular accuracy purpose of Z-axis The laser tracker measured value of angle will be considered as actual value (true value). Ai

The value on digital read out through the encoder will be the displayed value. Di

The error Eiof the ith coordinate point shall be computed as.Ei=Di−Ai

The error at any coordinate point must be within specified positional accuracy. For repeatability 3 such measurement set will be taken at the same point. The mean of the 6 measurements taken at a single random coordinate point is taken as

repeatability value of that coordinate point.

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12 Format of Technical bidVendor has to submit technical bid with following details:

1. Point by point compliance to all specifications listed below and Terms and Conditions.

Sr. No.

Description Specification Compliance

Non- Compliance

Remarks (if any)

12.1 Linear Stage

12.1.1Linear- Axis Travel Range

(End to End)

Minimum: 5600 mm or maximum possible without increasing overall dimensions

12.1.2 Over all Dimensionapprox. (6.0m x 1m x 1m) L x W x H ± 50 mm in all dimensions

12.1.3

Overall Position Accuracy over the entire range of travel (in the plane of scan)

± 0.5 mm or better

Readout Resolution 0.01 mm minimum

12.1.4 Repeatability < 0.15mm

12.1.5

Travel Table + Polarization Positioner (including U bracket, motor over all travel mass) + Probe (max 15 kg provided by SAC)

Maximum 65 kg

12.1.6

Planarity for linearity of complete travel Range

Better than 0.2 mm (rms)

12.1.7 Braking systemAutomatic firm Locking should be confirmed at each stop of travel

12.1.8 Speed100 to 800 mm/minute and it should be programmable in between the specified range

12.2 Rotary Stage (Polarization Positioner)

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Sr. No.


Non- Compliance

Remarks (if any)

12.1 Linear Stage

12.2.1 Roll-Axis (Rotary Stage) +/- 180 deg. (continuous)

12.2.2 Travel Table diameter 300 mm ± 10 mm

12.2.3 Angular Accuracy Better than 0.20 deg.

Readout Resolution 0.01 deg. Minimum

Repeatability < 0.05 deg.

12.2.4Total mass of rotary stage & motor

Maximum 50 kg

12.2.5Total mass on rotary stage (provided by SAC)

15 kg

12.2.6 Interface with Linear Rail

U-bracket having a clearance of 10 inches (250mm) to accommodate RF absorbers.

12.2.7

Perpendicularity between Rotary Stage axis and linear travel axis


12.2.8

Parallelism between AUT Pol. Positioner Axis and Scanner Polarization Positioner Axis


12.2.9 Speed upto 60 deg./min and controllable

12.2.10 Step size < 0.1 deg.

12.2.11

Overall weight of the linear scanner including rotary stage (excluding probe)

Preferably less than 750 kg

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Sr. No.


Non- Compliance

Remarks (if any)

12.1 Linear Stage

12.4 Controller

12.4.1 Controller

2- Axis CNC

Dedicated CNC Machine controller with Point-to-point and simultaneous movement of all axes

Jog Mode

Manual Data Input (MDI) Mode

Program execution Block by Block or Continuous

User friendly GUI has to be provided for easy operation of the software.

Emergency stop option has to be provided

Vendor has to provide s-curve for acceleration/decelration movement

12.4.2 Trigger SignalNegative edge 24V TTL Trigger to be stepped down to 5V for input to the PNA

12.4.3

Cables for connection between Scanner and Controller

Minimum 25 m length using high grade cables (lap/teflon) (subjected to SAC approval)

12.5 Storage/Transportation Container

12.5.1 Material Should be made of metal.

12.5.2 Load Capacity Should have at least 1Ton load carrying capacity.

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Sr. No.


Non- Compliance

Remarks (if any)

12.1 Linear Stage

12.5.3 Transportation

Should have provisions for mounting/fastening of the scanner on the base of the container to avoid movement during transportation.

Should also have vibrator isolator (wire rope type) at these mounting/fastening interfaces to take care of road/rail/aircraft shocks.

12.5.4 Type of wheels Should have heavy duty lockable caster wheels.

12.5.5 JackSufficient number of jacks should be provided for sturdy positioning during transportation

12.5.6 CoveringShould have canvas cover to fully cover the linear scanner structure and controller

12.5.7 Handling

Container should have handles/hooks at outside so that it can be handled using crane.

Container should have an attached box inside for keeping essential tools.

12.6 Data acquisition and post processing Module requirements

12.6.1 Should able to map the field variation over defined 5.6m (dia) test zone

12.6.2 should support multi frequency CW, List and sweep frequency mode measurement

12.6.3 Should support bidirectional measurement

12.6.4

It must display the acquired Amplitude and phase raw data on the screen in real time to indicate the degree of completion and save the data in the prescribed format

12.6.5 Capable of operating/controlling the subsystems of the receiver individually

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Sr. No.


Non- Compliance

Remarks (if any)

12.1 Linear Stage

12.6.6should ensure proper triggering of PNA with TTL trigger(Positive/Negative edge triggering) without any false triggering

12.6.7should employ LAN/GPIB interface for communication among Positioner controller, PNA and Control computer

12.6.8Also it should include provision of Data Import/Export options in different formats (jpeg, bmp, png etc)

12.6.9 Provision of Pause and Resume the data acquisition should be given

12.7 General Specifications

Sr. No. Description Specification Compliance Non-Compliance

Remark

12.7.1 Materials

Used Material should be from standard make with assured quality (Aluminium or its alloy with PU paint). Zinc chromate primer & PU paint for whole structure

12.7.2 Standard components

Should be of standard Make from reputed manufacturers with National/International standards. If it is required to use any other brand not specified in following list due to some constraint, it should be reported to SAC and Vendor has to take prior approval from SAC before use

12.7.3Linear Guides with Rack and Pinion

THK Make

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Remark

12.7.4All Types of Bearings and Plummer blocks

SKF/FAG

12.7.5

All Drive Motors with or without gearboxes

Siemens or equivalent

12.7.6

All Electrical/Electronic components and Cables

From Standard Manufacturers conforming to National/International standards

12.7.7 Manufacturing/Fabrication As per Industrial standards

12.7.8 Welding As per Industrial standards

12.7.9Surface Treatments and Painting

As per Design requirements

12.7.10

Limit switch for linear axis

Electrical Limit switches and Mechanical Stops

12.7.11

Safety of Cables during travels

Proper Flexible Cable guide/conduit has to be provided

12.7.12 Human safety

As per the industrial norms for Mechanical as well as electrical aspects

12.7.13

Operating conditions

Has to be installed in Clean room (Antenna Test Range).

12.7.14 Temperature +10 to +40 deg. C

12.7.15 Humidity 70% RH Max.

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Remark

12.7.16

Probe /Horn Assembly (Not to be fabricated by Vendor)

Interface Bracket has to be designed and Fabricated by Vendor

Total Weight of probe and its interface bracket should not be more than 15 kg.

12.7.17

Electrical Supply

Vendor should provide voltage stabilizer with isolation transformer

12.7.18

One Desktop Computer has to be supplied with Scanner with all required hardware and software for interconnection with scanner’s controller

Minimum PC Configuration

Processor - Intel i5 or higher

OS - windows 10

RAM - 8 GB DDR3

Graphics - 2 GB Dedicated NVIDIA/ATI

Monitor - LED full HD min 24”

Manuals/Media/Documentation for standard and/or specific software needed

12.7.19

Connectivity between Motion controller and PC

All the setting should be commendable via PC and machine controller

12.7.20

Tools and accessories

Two sets of all tools required for assembly, installation and maintenance with proper Tool Box

Special types of fasteners used in scanner if any, in adequate quantity (Minimum 5% of used)

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Remark

12.7.21

Training for the Scanner

Vendor has to Provide Detailed Training to SAC Engineers (4-Nos) regarding all operational aspects of Scanner including used hardware/software

12.7.22

Agreement/confirmation to other clauses mentioned in document

12.7.23 Handling

Proper Mechanism for handling and lifting the linear scanner structure to mount over the AUT positioner should be given

2. Sketches/Drawings for the proposed concepts by vendor (in case of multiple concepts, please quote separately for each options).

3. Copy of commercial bid without prices (Blank format) shall be provided along with the technical bid.

In addition, Vendor has to provide all other details with necessary supporting documents:

CDs containing Softcopies in PDF or MS Word format of above all documents must be supplied along with hard-copies of technical bid.

13 Format of Commercial bidBreak-up of cost shall include at least all the parts of work defined in Sec.3 & Sec. 10. A Copy of commercial bid without prices (Blank format) shall be provided along with the technical bid. All applicable taxes, surcharges, custom duty, levies etc. are to be shown separately in the commercial bid.

-------------------------------------------------------------------------------------------------------------------------A sample only format for commercial bid (Need not be in the same break-up)

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Sr. No. DESCRIPTION DETAILS/PRICE

1 Design and analysis charges

2 Material and fabrication charges

3 Bought-out / off-the-shelf components

4 Assembly/ packing/installation charges

6 -----

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