ATA’s Nanoradian-Class Rotational Sensors 10 November 2009.

ATA’s Nanoradian-ClassATA’s Nanoradian-ClassRotational SensorsRotational Sensors

10 November 2009

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

ATA OverviewATA Overview

• Awards and Distinctions– 2008 Minority Manufacturer of the Year

– 2004 SBA National Prime Contractor of the Year

– 2005 NM Innovator of the Year

– USAF Small Business R&D Awards

– SBA Administrator’s Award

– Multiple Patented Technologies

• Operating Sites in New Mexico– ATA 1300 Britt Street, Albuquerque, NM

Headquarters– Kirtland AFB – AFRL and Big Crow

Support Sites– North Oscura Peak, WSMR AFRL Laser

Test Facility– Las Cruces, NM WSMR Support Site

• Founded 1975 A-TECH Corporation, d.b.a. Applied Technology Associates

• Customers Include USAF, Sandia NL, US Army, MDA, NASA, US Navy, and Aerospace and Defense Companies

• Approximately 250 Employees

ATA is an Established Technology Company with a Proven Track RecordATA is an Established Technology Company with a Proven Track Record

2

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

• ISO-9001 Certified• Class 10,000 Clean Room• Approved Vendor

– Ball Aerospace– Lockheed Martin– Boeing– Raytheon

• Produced Space Qualified Hardware– Lockheed Martin– Boeing– Raytheon– Sandia National Laboratories

ATA Overview Cont’dATA Overview Cont’d

Raytheon

3

Use or disclosure of this sheet is subject to the restriction on the title page of this document. 4

• ATA has a history of inventing sensors in response to customer requests or internally identified needs

Overview Overview

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

MHD ARS Sensing Concept

• The MHD concept resulted from an Air Force request for alternate angular sensing techniques

AngularVelocity(rad/ s)

SensitiveAxis

ElectricField

RelativeVelocity

ElectrodeAreas

ConductingFluid

MagneticFlux

Density

PermanentMagnet

VoltageOutput

Proportionalto Angular

Rate

B

E

SN

w

+

-

Uq

MHD SensorMHD Sensor

High PerformanceHigh Bandwidth: > 1,000 HzLow Noise Floor: <100 nrad NEA (1-1kHz)High Dynamic Range: > 100 dBLow Cross-Axis Sensitivity

Simple DesignSmall Size: 1.0 x 1.0 x 1.3”Low Weight: 100 gramsLow Power: < 0.3 WattsRugged Design: > 1,000 g

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Augmenting Sensors with Augmenting Sensors with Other TechnologiesOther Technologies

• Radiation-tolerant design (100Krad environment)

• ATA designed and implemented FPGA processing architecture, collaborated in board design

6

Use or disclosure of this sheet is subject to the restriction on the title page of this document. 7

Microradian-Class Testing Microradian-Class Testing

• ATA has developed test facilities and techniques suitable for a range of motion profiles

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

ARS Specifications

Model ARS-06 ARS-15 ARS-14 ARS-24

Range +200 rad/s +10 rad/s +0.5 rad/s +0.005 rad/s

Scale Factor 50mv/rad/s 1 V/rad/s 20 V/rad/s 2120 V/rad/s

-3dB Bandwidth 0.4 - 1kHz 4 – 1kHz 1 – 1 kHz 1 – 675 Hz

Rate Noise, 1-1kHz 4.7 mrad/s 27 μrad/s 5 μrad/s 1 μrad/s

Displ. Noise, 1-1kHz 50 μrad 0.8 μrad 50 nrad 8 nrad

Dimensions (inches) 0.7 x 1 0.8 x 0.8 x 1.2 1 x 1.3 x 2.9 2 x 2 x 4

Mass (grams) 35 60 200 2000

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Frequency Response Magnitude

ATA MHD ARS Frequency Response Magnitude(FR Magnitude quoted at 10 Hz)

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

0.1 1.0 10.0 100.0 1000.0

Frequency (Hz)

FR

Mag

(d

B r

ef 1

V/r

ad

/s)

ARS-06 (0.05 V/rad/s)

ARS-15 (1 V/rad/s)

ARS-14 (20 V/rad/s)

ARS-24 (2120 V/rad/s)

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Frequency Response Phase

ATA MHD ARS Frequency Response Phase

-180.00

-90.00

0.00

90.00

180.00

0.1 1.0 10.0 100.0 1000.0

Frequency (Hz)

Ph

ase

(deg

rees

)

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Rate Noise

ATA MHD ARS Rate Noise(Noise quoted from 1-1000 Hz)

1.0E-16

1.0E-15

1.0E-14

1.0E-13

1.0E-12

1.0E-11

1.0E-10

1.0E-09

1.0E-08

1.0E-07

1.0E-06

0.1 1.0 10.0 100.0 1000.0

Frequency (Hz)

(Rad

/s)2

/Hz

ARS-06 (4.67 mrad/s RMS)

ATA MHD ARS Displacement Noise(Noise quoted from 1-1000 Hz)

1.0E-24

1.0E-23

1.0E-22

1.0E-21

1.0E-20

1.0E-19

1.0E-18

1.0E-17

1.0E-16

1.0E-15

1.0E-14

1.0E-13

1.0E-12

1.0E-11

1.0E-10

1.0E-09

1.0E-08

1.0E-07

1.0E-06

0.1 1.0 10.0 100.0 1000.0

Frequency (Hz)

(Rad

)2/H

z

ARS-15 (26.6 μrad/s RMS)

ARS-14 (2.84 μrad/s RMS)

ARS-24 (0.36 μrad/s RMS)

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Displacement Noise

ATA MHD ARS Displacement Noise(Noise quoted from 1-1000 Hz)

1.0E-24

1.0E-23

1.0E-22

1.0E-21

1.0E-20

1.0E-19

1.0E-18

1.0E-17

1.0E-16

1.0E-15

1.0E-14

1.0E-13

1.0E-12

1.0E-11

1.0E-10

1.0E-09

1.0E-08

1.0E-07

1.0E-06

0.1 1.0 10.0 100.0 1000.0

Frequency (Hz)

(Rad

)2/H

z

ARS-06 (50 μrad RMS)

ARS-15 (0.8 μrad RMS)

ARS-14 (40 nrad RMS)

ARS-24 (5 nrad RMS)

Use or disclosure of this sheet is subject to the restriction on the title page of this document. 13

• These radiation hardened DC accelerometer units can measure microradian-level tilts in the presence of strong background acceleration (0.25g rms +).

0.1 0.1 μμG AccelerometerG Accelerometer

Dennis

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Seismically Stable Platform Tilt Sensor (1990)

Noise-174 dB rad

Corner6.9 mHz

Use or disclosure of this sheet is subject to the restriction on the title page of this document.

Northfinder

• Current effort underway to develop a 1 mrad Northfinder

• Based on modulating earth rate onto the ARS-14 by rotating a horizontal sensor in the earth’s rotation field