High Accuracy Imu Analog of Stim300

Description

This instruction manual is the main reference document for the use and operation of IMU6-1, and is mainly prepared in accordance with the Technical Agreement of IMU6-1 MEMS Inertial Measurement Unit and the Technical Conditions of Inertial Measurement Unit and Triaxial Gyro Combination. IMU6-1 series inertial measurement unit can change the measurement accuracy and measurement range of the inertial sensor according to the user's requirements.

Composition and function The MEMS inertial measurement unit consists of a three-axis gyroscope, a three-axis acceleration meter, a three-axis inclination angle, a temperature sensor, a signal processing board, a structure and necessary software, and is used for measuring three-axis angular rate, three-axis acceleration and three-axis inclination angle of a carrier. And output that gyro, the loading table and the inclination data aft error compensation (including temperature compensation, installation misalignment angle compensation, nonlinear compensation and the like) through an RS-422 serial port according to an agreed communication protocol.


Gyroscope specifications

Parameter	Unit	IMU6-1	IMU6-1A
Measuring range (customizable)	°/s	±400	±400
Zero bias stability (@ Allan Variance)	°/h	1	0.5
Zero bias stability (1s smooth, 1σ, room temperature)	°/h	10	5
Zero bias stability (10s smooth, 1σ, room temperature)	°/h	5	1
Zero-bias error over full temperature range	°/h	20	10
Random walk	°/√h	0.2	0.1
Zero-bias repeatability	°/h	10	5
Zero bias acceleration sensitivity	°/h/g	1	1
Resolution	°/h	2	1
Scale factor nonlinearity	ppm	500
Scale factor repeatability	ppm	500
Cross coupling	%	0.1
Bandwidth	Hz	125

Acc Specifications

Parameter	Unit	IMU6-1y-1	IMU6-1y-2
Measuring range (customizable)	g	±10	±30
Zero-bias stability (Allan Variance @ 25 ºC)	mg	0.02	0.05
Zero-bias stability (1s smoothing)	mg	0.1	0.5
Zero-bias stability (10 s smoothing)	mg	0.05	0.2
Zero-bias error over full temperature range	mg	1	3
Random walk	m/s/√h	0.001	0.002
Zero-bias repeatability	mg	0.1	0.5
Scale factor repeatability	ppm	500
Scale factor nonlinearity	ppm	500
Bandwidth	Hz	125