IMU (Inertial Measurement Unit), sensor with six degrees of freedom

Bay SensorTec manufactures IMUs on the basis of capacitive and piezo-resistive technology. Both are accelerometers, whereby the capacitive sensors mainly cover small measuring ranges from +/- 1g to +/- 200g in the IMU-M and are temperature-compensated and signal-reinforced, which also applies to the rotation rate sensors. The gyrosensors’ measuring ranges start at 50°/s and will go up to 600°/s, other measuring ranges are available on request.

The piezo-resistive sensors (full bridge) can be used in the IMU-C for automobile safety crash tests with measuring ranges up to+/- 2000g. The gyrosensors’ measuring ranges start at 900°/s and 1500°/s, other measuring ranges will follow shortly. These sensors have a differential output signal and can of course be equipped with Dallas and shunt.

With both IMU versions, customer-specific plugs or cable lengths can be taken into account.

ModelEffective directionMeasuring rangesSensitivity mV/V/gDamping factorMaterialTemperature range
BST IMU-M
Sansors BST IMU-M
triaxial
triaxial
Acceleration 2g to 200g
Rotation rate 50°/S to 900°/S
1000mV/g to 10mV/g
40mV bis 2,2 mV/°/S
0.5Aluminium-20 to 80°CPDF
BST IMU-C
Sansors BST IMU-C
triaxial
triaxial
Acceleration 1000g / 2000g
Rotation rate 600°/S to 1500°/S
0,018 / 0,016 mV/V/g
2,2mV to 1,35 mV/°/S
0.7Aluminium0 to 60°CPDF