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부품번호 | CRS39 기능 |
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기능 | Analogue Angular Rate Sensor | ||
제조업체 | Silicon Sensing Systems | ||
로고 | |||
전체 18 페이지수
CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
CRS39-01
Unpackaged
CRS39-02
Packaged
Features
• Proven and Robust silicon MEMS vibrating
ring structure
• FOG-like performance
• DTG-like size and performance
• Low Bias Instability (0.2°/h)
• Excellent Angle Random Walk (0.017°/h)
• Ultra-low noise (<0.006°/s rms,)
• Optimised for low rate range environments
(e.g. North Finding)
• Precision analogue output
• Wide range from -10°C to +110°C
• High shock and vibration rejection
• Three temperature sensors for precision
thermal compensation
• MEMS frequency output for precision thermal
compensation
• RoHS Compliant
• Packaged and unpackaged options
Applications
• Platform Stabilization
• Precision Surveying
• Downhole Surveying
• North Finding
• Maritime Guidance and Control
• Gyro-compassing and Heading Control
• Autonomous Vehicles and ROVs
• Rail Track monitoring
• Robotics
1 General Description
CRS39 provides the optimum solution for low angular
rate range applications where bias instability, angle
random walk and low noise are of critical importance.
CRS39 is available in two forms; the unpackaged
version which has been designed for mounting within
a 25mm inside diameter cylinder, and a packaged
version for general applications where ease of
mounting is required.
The outstanding stability, low noise and size of the
CRS39 makes this a viable alternative to fibre-optic
and dynamically tuned gyros.
The latest inductive MEMS gyro sensor element
is combined with precision discrete electronics to
achieve high stability and low noise.
Three on board temperature sensors and the resonant
frequency of the MEMS enable additional external
conditioning to be applied to the CRS39 by the
host, enhancing the performance even further. Test
data for Bias and Scale Factor can be provided with
each gyroscope enabling this compensation to be
implemented without the need for further calibration.
Typical applications include downhole surveying,
precision platform stabilization, ship stabilisation, ship
guidance and control, autonomous vehicles and
high-end AHRS.
© Copyright 2013 Silicon Sensing Systems Limited. All rights reserved. Silicon Sensing is an Atlantic Inertial Systems, Sumitomo Precision Products joint venture company.
Specification subject to change without notice.
CRS39-00-0100-132 Rev 3
Page 1
CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
3 Specification
Unless otherwise specified the following specification
values assume Vdd = 4.9 to 5.25V over the temperature
range -10 to +110°C.
Parameter
Angular Rate Range,
°/s
Bias Setting Error,
Volts
Bias Variation Over
Temperature, °/h
Bias Residuals Over
Temperature, °/h
Minimum
<-25
-0.10
-500
-30
Typical
–
±0.03
±200
±10
Bias Instability, °/h
–
0.2
Maximum
>+25
+0.10
+500
+30
<0.3
Angle Random Walk,
°/h
–
0.017
Bandwidth, Hz.
15
25
Scale Factor, mV/°/s
Scale Factor Error over
Temperature, %
Scale Factor Non-
Linearity Error, % of
Full Scale
Noise to 10Hz,
°/s rms
Wideband Noise,
°/s rms
Start Up Time,
seconds
Misalignment, °
79.6
-1.0
–
–
–
–
-2.0
-2.5
80.0
±0.035
0.006
<0.006
<0.03
–
0.7
–
Note1: Assuming a 5th order polynomial fit for bias over temperature.
<0.03
35
80.4
+1.0
0.05
0.01
0.05
0.5
+2.0
+2.5
Notes
–
Bias setting error at
+45°C
Referenced to the
setting point at +45°C
Residual error after
external compensation
(Note 1)
As measured using the
Allan Variance method,
at constant ambient
temperature
As measured using the
Allan Variance method,
at constant ambient
temperature
-3dB point
Nominal Scale Factor
setting at +45°C
Referenced to the
setting point at +45°C
–
–
–
Full performance will
require additional time
for thermal stability
Unpackaged
Packaged
© Copyright 2013 Silicon Sensing Systems Limited. All rights reserved. Silicon Sensing is an Atlantic Inertial Systems, Sumitomo Precision Products joint venture company.
Specification subject to change without notice.
Page 4
CRS39-00-0100-132 Rev 3
4페이지 CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
Typical Performance Characteristics Continued
Figure 7.5 Normalized Bias vs Temperature
Figure 7.6 Scale Factor Error (80 mV/°/s Nominal)
vs Temperature
Figure 7.7 Normalized Scale Factor Error
vs Temperature
Figure 7.8 Non-Linearity Error (Max)
vs Temperature
© Copyright 2013 Silicon Sensing Systems Limited. All rights reserved. Silicon Sensing is an Atlantic Inertial Systems, Sumitomo Precision Products joint venture company.
Specification subject to change without notice.
CRS39-00-0100-132 Rev 3
Page 7
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