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Crista Inertial Sensors

Crista IMU

Crista Sensor Head

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Crista Inertial Sensors Crista Inertial Sensor Enclosure

The Crista inertial sensors

 are small 3-axis devices that provide calibrated rate and acceleration data using the latest MEMS technology. Developed in support of the Piccolo autopilot and TASE gimbal inertial data requirements, the CCT family of inertial sensors have been provided as stand alone products for customers requiring calibrated, MEMS grade assemblies for incorporation into their system designs.

  • Small form factors to fit easily into customer applications.
  • Inexpensive. Uses available automotive grade MEMS sensors.
  • Used in other CCT products – 1000s made. Tried and tested solution.
  • Provides raw rate and acceleration data to support customer algorithms.
  • Calibration of gain, temperature bias, acceleration affects, and alignment.
  • Software driver support and integration documentation provided as with other CCT products.
Gyros
emptyRange: 300°/sec
empty¹Scale Factor Error: < 3°/sec (@ 25°C)
emptyIn-Run Bias Error  
emptyFixed Temperature: <0.2°/sec (warmed up)
emptyOver Temperature: <0.6°/sec
   
emptyLinear Acceleration
Effects:		 <0.2°/sec/G typical;
1.5°/sec/G max uncorrected.
emptyNoise: (1, no
over-samples) 		< ± 0.7°/sec
empty²Cross Axis Rate
Error:		 2.6% uncorrected
(Includes alignmentand off axis acceleration)
 
emptyA/D Measurement
Resolution:		 0.0155°/sec
emptyConverted Data Rate
Resolution:		 0.009°/sec
emptyBandwidth: 2 order LPF Fc=100Hz
Interface
  
emptySerial Interface: RS232 and CAN
emptyData Output Rate: > 200 Hz User settable
emptyInternal A/D Rate: > 1 KHz
Electrical
  
emptyVIN: 4.4 - 8 Volts
emptyPower: 0.5 W (typical)
0.75 W (max)
Mechanical
  
emptySize: 2.05" x 1.55" x 1.00"
emptyWeight: 36.8 grams (1.3 oz)
Accelerometers
  
emptyRange: ± 10G
emptyScale Factor Error: < 100 mG (0.98 m/s²)
(@ 25°C)
 
emptyIn-Run Bias Error  
emptyFixed Temperature: < 25 mG (0.245 m/s²)
emptyOver Temperature: < 51 mG (0.500 m/s²)
   
emptyTurn-on to Turn on Bias: < 30 mG (0.295 m/s²)
emptyNoise: (1ó, no
over-samples)		 < ± 12 mG (0.120 m/s²)
empty³Cross Axis Error: 2.6% uncorrected
(Includes alignment and off axis acceleration)
 
emptyA/D Measurement
Resolution		 0.62 mG
0.30 mG
emptyConverted Data Rate
Resolution		 0.30 mG
(max rate = 10 G)
emptyBandwidth: Simple LPF. Fc=100 Hz
 
  1. Based on room ambient temperature. Nonlinearity from best fit straight line. Typically much better at lower rates/accelerations.
  2. Includes alignment and off axis acceleration.
Environmental
  
emptyOperating Temp: -40C to +70 C
(Calibrated Temp. Range)
emptyMax Acceleration: 500 G


The Crista Developer's Kit

 provides first time Crista users all the parts needed for setting up the Crista IMU in a lab environment for bench-top testing and facilitating vehicle integration.
Inertial Measurement Unit Crista IMU Assembly Crista IMU 9-Pin Serial Cable Crista IMU Developer's Cable Crista IMU Serial Support
Crista IMU Developer's Kit
  • Complete Product List - A complete list of integration, peripherals, and accessory items designed to optimize CCT products and systems.
  • Product Export Fact Sheet - A brief description of the regulatory processes required for Cloud Cap Technology to export its products.
  • Crista IMU - Includes the tools, installers and related support documentation for the Crista IMU.
  • Crista Sensor Head - Includes the installers, documentation, and drivers for the Crista Sensor Head.
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