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PDF CRS39-03 Data sheet ( Hoja de datos )
| Número de pieza | CRS39-03 | |
| Descripción | Analogue Angular Rate Sensor | |
| Fabricantes | Silicon Sensing Systems | |
| Logotipo |  |
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CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
CRS39-03
Features
• Proven and Robust silicon MEMS vibrating
ring structure
• FOG-like performance
• DTG-like size and performance
• Low Bias Instability (0.1°/h)
• Excellent Angle Random Walk (0.01°/h)
• Ultra-low noise (<0.006°/s rms, 10Hz)
• 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
CRS39-03 provides the optimum solution for
applications where bias instability, angle random walk
and low noise are of critical importance.
At the heart of the CRS39-03 is Silicon Sensing’s
VSG3QMAX vibrating ring MEMS sensor which is at the
pinnacle of 15 years of design evolution and the latest
off a line which has produced over 30 million high
integrity MEMS inertial sensors. The VSG3QMAX gyro
sensor is combined with precision discrete electronics
to achieve high stability and low noise, making the
CRS39 a viable alternative to Fibre-Optic Gyro (FOG)
and Dynamically Tuned Gyro (DTG).
CRS39 has been designed for mounting within a
25mm inside diameter cylinder.
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.
Typical applications include downhole surveying,
precision platform stabilization, ship stabilization, ship
guidance and control, autonomous vehicles and high-
end AHRS.
CRS39-03 supersedes CRS39-01. It is a higher
specification, ‘drop-in’ replacement.
© Copyright 2016 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.
CRS39-03-0100-132 Rev 3
Page 1
1 page  
CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
7 Typical Performance Characteristics
Graphs showing typical performance characteristics for CRS39 are below.
Note: Typical data is with the device powered from a 5.0V supply, unless
stated otherwise.
Figure 7.1 CRS39-03 Allan Variance
Figure 7.2 CRS39-03 In-Run Stability
Figure 7.3 CRS39-03 Spectral Characteristics
Figure 7.4 CRS39-03 Cumulative Noise
© Copyright 2016 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.
CRS39-03-0100-132 Rev 3
Page 5
5 Page 
CRS39 Technical Datasheet
Analogue Angular Rate Sensor
High Performance MEMS Gyroscope
The table below provides connection details.
PCB
Pin Number
1
Name
Vcc
Comment
Power Rail: 4.90 to 5.25 Volts, at 80mA approx. (200mA inrush)
2 GND
Power Supply and Signal Ground, 0 Volts.
3
Rate_Out
Angular Rate output. Nominally centred at Ref (2.40 Volts) for zero angular rate. Scale Factor is 80
mV/°/s. Nominal rate range is ± 25°/s
4
Ref
Voltage reference. Nominally fixed at 2.40 Volts. This reference is derived from a precision voltage
reference integrated circuit and is used as the reference for the analogue electronics
5
TMP1
Temperature sensor output. A National Semiconductor LM20B is used to measure the temperature.
TMP1 is located on the PCB, and is the furthest temperature sensor from the sensor head
Temperature sensor output. A National Semiconductor LM20B is used to measure the temperature.
6
TMP2
TMP2 is located on the PCB, and is the temperature sensor midway between TMP1 sensor and the
sensor head
7
TMP3
Temperature sensor output. A National Semiconductor LM20B is used to measure the temperature.
TMP3 is located on the PCB, and is the temperature sensor on the under side of the sensor head
8
FREQ
This is CMOS Digital (74HC series) compatible digital output at two times the frequency of the
sensor head
8.1 Temperature Sensors
The temperature sensors all use the LM20B device,
internally connected as shown in Figure 8.2.
4.6V
C37
1608
0.1µF
10%
X7R
U10
4
V+
2
GND 1
5
GND 2
R30
3 0.5%
Vout
1608
25ppm
470
1
NC
LM20BIM7/N0PB
TMP1
C38
3216
0.1µF
5%
CH
C.G.18618
Figure 8.2 Temperature Sensors
The output at 0°C is typically +1.864V with respect
to GND. The temperature coefficient is typically
-11.7 mV/°C.
The output can be measured with respect to GND or
can be put through a differential input instrumentation
amplifier, referenced to the Ref pin, in which case the
offset at 0°C is typically -0.536V. At +45°C, the output
is typically -1.06V with respect to Ref. The temperature
sensors are not intended for use as a thermometer,
since they are not calibrated on the Celsius scale.
They are intended only as a temperature reference for
thermal compensation techniques.
© Copyright 2016 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.
CRS39-03-0100-132 Rev 3
Page 11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet CRS39-03.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CRS39-01 | Analogue Angular Rate Sensor | Silicon Sensing Systems |
| CRS39-02 | Analogue Angular Rate Sensor | Silicon Sensing Systems |
| CRS39-03 | Analogue Angular Rate Sensor | Silicon Sensing Systems |
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