. Load sensors conditioners – radiation tests Mateusz Sosin BE/ABP/SU RADWG, 15.11.2011.
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Load sensors conditioners – radiation tests
Mateusz SosinBE/ABP/SU
RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Summary
Load sensors under Low-Beta quadrupoles – introduction
Load sensors – signal conditioner
Conditioner crate – components & radiation tests
Questions
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Load sensors under Low-Beta quadrupoles
Monitoring and adjustment system
Monitoring alignment systems: Wire Positioning Systems – (WPS) and Hydrostatic Levelling Systems (HLS) are installed on top of the cryostat (precision of measurements of a few microns)
Motorization of the Jacks according to 5 DOF 10 Vertical and 6 Radial Jacks per triplet
Problem of loosing articulation point detected at february 2011 !!! Unexpected 0.8mm Q3R5 magnet jump during repositioning dangerous for installation Reported by D.Missiaen at LMC – 02.03.2011 Load sensor solution proposed
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Load sensors under Low-Beta quadrupoles
Sensor Strain gauge – force washer type
sensor Solution tested After market study - choosed
German HBM MPZ1108010 Rad-hard qualified
Constraints Very low possible space for sensor installation (ø70, h16
mm) High load (up to 15T) Radioactive area
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Load sensors under Low-Beta quadrupoles
Configuration per one IP side: Installation for IP1,2,5,8 L&R Compatible with other SU instalations
Load sensors conditioners – radiation tests RADWG, 15.11.2011
?
S.A.S.tested by A.MarinEDMS 1062166,FipADUC cards tested by R.Denz
Mateusz Sosin Research status of Low-Beta weighting system
Load sensors – signal conditioner
OUT1 ADUC ‘x51 microcontroller D/A
Suitable market accesible conditioners Expensive (0.6..1kCHF per channel) Additional cabling needed We have no influence for used components
BE-ABP-SU conditioners (Analog Devices AD7730 + ’51 based)
Cheap (0.1kCHF per channel) Suited for application Basic DSP abilities included AC/DC modes & cable compensation
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Load sensors – signal conditioner
BE-ABP-SU prototype and HBM-AE301 conditioners checked at specialtest bench
Similar noise with 270m cables High output signal stability for both conditioners Both solutions suitable for Low-Beta weighting
system application
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
SOLUTION: Basing on Survey Acquisition System electronics – create load sensors conditioning crate
Use same part of electronics like in S.A.S. (FipADUC card)
Add one PCB (12 channel input stage) in place of old S.A.S. input amplifiers board
Load sensors – signal conditioner
FIP ADUC CARD
S.A.S. INPUT AMPLIFIERS BOARD
CONN.TAPE
FIP ADUC CARD
LOAD SENSORS 12 CHANNEL INPUT
STAGE PCB
CONN.TAPE
Advantages No additional cabling between conditioner and S.A.S. Small space in SU racks needed No big updates at FESA/PVSS level needed
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Mateusz Sosin Research status of Low-Beta weighting system
Conditioner crate – components & radiation tests
FIP ADUC CARD
LOAD SENSORS 12 CHANNEL INPUT
STAGE PCB
CONN.TAPE
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Semiconductors proposed for 12-channel input stage of conditioner crate:
12 x AD7730 – Analog Devices, CMOS, 24-Bit Sigma-Delta, Bridge Transducer ADC for Load Cell Applications (not tested)
12xMIC4427 – Micrel, MOSFET driver (not tested)
1xCPLD XC95144 – Xilinx CPLD, 144 macrocells, triple mode redundancy (5V logic compatible preffered), Actel if no agreement
1xADUC8xx – Analog Devices, ’51 based MCU with ADC & 12bit DAC (used in FipAduc, tested 100Gy)
12xLED HLMP-1700 or HLMP-1790 (tested 100Gy)
4x rectifying diodes 50WQ03FN (tested100Gy)
1x LM7805 – Linear voltage stabilizer (tested 100Gy)
2x Rail-To-Rail operational amplifier (Vcc=5V ?)
Mateusz Sosin Research status of Low-Beta weighting system
Conditioner crate – components & radiation tests
Load sensors conditioners – radiation tests RADWG, 15.11.2011
Equipment locations: IP1: US15 IP2: UA23, UA27 IP8: UA83, UA87 IP5: UJ56 -> after LS1 UL55
Equipment quantity: Each IP -> 2 crates (10 channels
for sensors + 2 spares) 8 crates in total
Mateusz Sosin Research status of Low-Beta weighting system
?Questions
Load sensors conditioners – radiation tests RADWG, 15.11.2011
According to future locations of new eqipment and radiation levels– how big is risk of radiation fails in installation places?
Because of installation works urgency– is it possible to install electronics and perform the tests later? In that case: Can we treat temporarly our components locations as ‘radiation safety’ areas?
According to problems with Xilinx XC95.. CPLD family we can change it for Actel ProAsic3, but is it really necessary in this case?
ADC tests: AD7730 & future SAS generation...
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