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The ARS-12 is
our most sensitive angular rate sensor. Designed to eliminate jitter
from airborne and space borne mirrors, optical systems or lasers, and
for accurate line-of-sight imaging platform stabilization, the ARS-12
can measure vibrations and angular motions as low as 50 nanoradians.
This product has very
high sensitivity and a very low noise floor. The stainless steel housing and mounting plate make a rugged assembly, able to operate
accurately after an 800g shock load. Its compact size and mass allow
use in very small spaces. The ARS-12 has a wide, usable frequency range
from less than 1 to more than 1,000 Hz. The ARS-12 is available in
three standard ranges for angular rate measurement and three standard
ranges for angular displacement measurement.
The ARS-12A has
an optional test signal input and an optional temperature sensor.
Export
Application/License
Information |
ARS-12A MHD Angular Rate Sensor
View
.pdf
format.
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Custom scale
factors and ranges are available.
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ATA Sensors' patented MHD angular motion
sensors utilize the finest materials and
workmanship combined in durable packages that
feature:
• No moving parts
• Dynamic range > 100 dB
• Low power consumption
• Low cross axis angular sensitivity
• Low linear acceleration
sensitivity
• Integral electronics/low noise
• High survivable shock
limits
• Superior applications
support
• One-year warranty against defects in
materials and workmanship on sensors,
90 days on cables.
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Specifications
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ARS-12A MHD
Angular Rate Sensors |
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Dynamic
View
.pdf
format.
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ARS-12A Angular Rate Standard Ranges1 |
± 1 rad/sec |
± 100 mrad/sec |
± 10 mrad/sec |
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ARS-12A Angular Displacement Standard Ranges1 |
± 10 mrad |
± 1 mrad |
± 100
µrad |
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ARS-12A Angular Rate Standard
Scale Factors2 |
10
V/rad/sec |
100
V/rad/sec |
1,000
V/rad/sec |
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ARS-12A Angular Displacement Standard
Scale Factors2 |
1,000
V/rad |
10,000
V/rad/sec |
100,000
V/rad/sec |
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Bandwidth |
1
to 1000 Hz |
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Cross-axis Angular Error |
< 2 % |
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Linear Acceleration Sensitivity |
< 5 mrad/sec/g (Rate), <10
µrad/g
(Displacement) |
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Noise Equivalent Rate |
<8 microradians/s (rms) |
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Noise Equivalent Angle |
< 100 nanoradians (rms, 1-1000 Hz) |
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< 50 nanoradians (rms, 2-1000 Hz) |
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Non-linearity |
< 0.1 % |
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Temperature Coefficient3 |
< 0.4 % Scale Factor / ºC |
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Electrical |
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Power Dissipation |
< 0.5 Watts |
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Output Impedance |
< 100 Ohms |
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Grounding4 |
Case isolated from signal common by 1MΩ
minimum |
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Wiring |
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ARS-12A Pinout |
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Pin |
Connection |
Pin |
Connection |
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1 |
+Power
(+5 Vdc
to +15
Vdc) |
5 |
Signal |
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2 |
Power
and
Signal
Common
(0 Vdc) |
6 |
Test
Signal
Input |
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3 |
-Power
(-5 Vdc
to -15
Vdc) |
7 |
Chassis
Ground |
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4 |
Temperature
Output |
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Environmental |
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Temperature – operating |
-35
to +60
ºC (-31
to +140
ºF) |
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Temperature - Non-operating |
-40
to +85
ºC (-40
to +185
ºF) |
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Linear Acceleration5, Max.
Operating |
500
g
any axis |
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Linear Acceleration5, Max.
Survivable |
800
g
any axis |
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Notes:
1. Based on a +/-
10V
output
voltage
swing.
2. Measured
@ 10 Hz.
3. Percent change
in Scale
Factor
per ºC
@ 100
Hz.
4.
Signal
common
may be
connected
to case
if
required.
5.
Peak,
100 Hz
half
sine. |
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30 years 
