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WARNING Thi d t t i i t t d t i f ti f A T h C ti U th i d di l i t i tl hibit d d lt i i l l Thi i f ti h ll tWARNING: This document contains proprietary or trade secret information of A-Tech Corporation. Unauthorized disclosure is strictly prohibited and may result in serious legal consequences. This information shall notbe published, copied in whole or in part, or used for any purpose without written permission of A-Tech Corporation.
ITAR CONTROLLEDThis product is subject to U.S. Government approval for all hardware export licenses, end-user certificates and technical assistance agreements as required in accordance with the U.S. Government International Traffic in Arms Regulations (ITAR). Regulation requirements can be found in Subchapter M, Title 22, Code of Federal Regulations, Parts 120 through 130 (22 CFR 120-130).
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
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 8
(g )
Frequency Response Magnitude
ATA MHD ARS Frequency Response Magnitude(FR M i d d 10 H )(FR Magnitude quoted at 10 Hz)
50 00
60.00
70.00
80.00
s)
ARS-24 (2120 V/rad/s)
10.00
20.00
30.00
40.00
50.00
B re
f 1V/
rad/
s
ARS-15 (1 V/rad/s)
ARS-14 (20 V/rad/s)
-30.00
-20.00
-10.00
0.00
10.00
FR M
ag (d
ARS-06 (0.05 V/rad/s)
ARS-15 (1 V/rad/s)
-50.00
-40.00
0.1 1.0 10.0 100.0 1000.0
Frequency (Hz)
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Sensor Scale Factor is Configurable
Frequency Response Phase
ATA MHD ARS F R PhATA MHD ARS Frequency Response Phase180.00
90.00
gree
s)
-90.00
0.00
Phas
e (d
e
-180.000.1 1.0 10.0 100.0 1000.0
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 10
Frequency (Hz)
Rate Noise
ATA MHD ARS Rate NoiseATA MHD ARS Rate Noise(Noise quoted from 1-1000 Hz)
1.0E-07
1.0E-06
ARS-06 (4.67 mrad/s RMS)
1.0E-10
1.0E-09
1.0E-08
2 /Hz
1.0E-13
1.0E-12
1.0E-11
(Rad
/s)2
ARS-15 (26.6 μrad/s RMS)
ARS 14 (2 84 μrad/s RMS)
1.0E-16
1.0E-15
1.0E-14ARS-14 (2.84 μrad/s RMS)
ARS-24 (0.36 μrad/s RMS)
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0.1 1.0 10.0 100.0 1000.0
Frequency (Hz)
Displacement Noise
ATA MHD ARS Displacement Noisep(Noise quoted from 1-1000 Hz)
1.0E-091.0E-081.0E-071.0E-06
1.0E-141.0E-131.0E-121.0E-111.0E-101.0E 09
/Hz
1.0E-191.0E-181.0E-171.0E-161.0E-151.0E 14
(Rad
)2 /
ARS-06 (50 μrad RMS)
1 0E-241.0E-231.0E-221.0E-211.0E-201.0E 19
ARS-15 (0.8 μrad RMS)
ARS-14 (40 nrad RMS)
ARS-24 (5 nrad RMS)
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 12
1.0E 240.1 1.0 10.0 100.0 1000.0
Frequency (Hz)
0.1 0.1 μμG AccelerometerG Accelerometer
• These Radiation Hardened Tri-axial DC A l t U it MAccelerometer Units can Measure Microradian-Level Tilts in the Presence of Strong Background Acceleration (>0.25g rms).
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 13
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 14
MHD-Based Northfinder
Earth’s Rotational• Current Effort Underway to Develop a 1 mrad Northfinder
Earth’s Rotational VectorSensor
Input Axis
Northfinder• At Any Given
Orientation the SensorSensor
Input AxisOrientation, the Sensor Measures the Projection of the Earth’s Rotational
Input Axis
Vector onto the Sense Vector
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 15
Low Frequency Improved Torsional SeismometerTorsional Seismometer
• Current Effort Underway to Develop Torsional Seismometer that– Directly Measures Rotation Angle
I I i i T l i l M i– Is Insensitive to Translational Motion– Has High Sensitivity, Wide Frequency
Band and Low Power is Rugged and is L F I d T i l S i t (LFITS)Band, and Low Power, is Rugged and is Maintenance Free
Low Frequency Improved Torsional Seismometer (LFITS) SPECIFICATIONS Parameter Value UnitsGENERALResolution @ 1 Hz < 1 nanoradians Dynamic Range > 120 dB Noise Equivalent Angle (NEA) < 1.5 nanoradians rms, 0.01 ‐20 Sensitivity 104 Nom, 103 to 105 volts/radian Frequency 0.01 to 20 Hz , ‐3dB points Analog Output Signal Swing ±2.5 to ±10.0 Volts, adjustable output Serial Digital Output Logic Adjustable (1 2 to 5) voltsSerial Digital Output Logic Adjustable (1.2 to 5) volts Resolution 24 bits Serial Data Stream Format SPI or I2C
ENVIRONMENTAL Operational Temperature ‐45 to +60 degrees C Temperature Scale Factor TBD ppm/C Shock Survival TBD g peak, 11 ms half sine Vibration Survival TBD g2/Hz, 1‐1000 Hz Humidity TBD % relative humidity
MECHANICAL Housing Standard 20L x 20W x 10D cm
10B1478 Use or disclosure of this sheet is subject to the restriction on the title page of this document. 16
Weight (Al housing) < 2.0 kilogram Connector TBD
POWER Supply Voltage 9 to 14 volts dc Supply Current < 100 mA Power Dissipation ~ 1 to 1.5 W