GS-601

Inertial measurement unit

The six-axis MEMS inertial measurement unit consists of a MEMS gyro chip, a high-performance MEMS accelerometer chip, a temperature sensor, a digital signal processing circuit, a structure, software, and more. Its purpose is to accurately measure the angular rate and linear acceleration of the carrier in three axes in real-time. This product features flexible connection technology and incorporates advanced algorithms within its software, including full temperature compensation, installation misalignment angle compensation, and non-linear compensation. These algorithms ensure optimal performance under various conditions, whether static, dynamic, or in harsh environments. Additionally, the unit offers users stable and reliable six-degree-of-freedom measurement data through its RS-422 serial port output after precise error compensation.

OTHER INTRODUCTION

l Low vibration rectification error.

l High accuracy, low noise and good repeatability.

l Low power consumption, low latency, and shock resistance.

l Sensor full factor compensation.

l Small in size, light in weight and convenient for installation.

SCENE APPLICATION

l Guided munitions.

l EOP (Electro-optical Pod).

l Stabilization platform.

l High-speed railway.

l Oil exploration.

Parameters (typical values)		Unit	Basic type	Type A	Type B	Type C	Type F
Gyroscope	Output range (customizable)	°/s	±400	±400	±400	±2000	±300
	Zero offset	°/h	15	10	5	30	3
	Bs bias instability (@Allan variance)	°/h	0.3	0.1	0.05	1	0.05
	Bs bias stability (10s smooth,1σ, room temperature)	°/h	3	2	0.4	6	0.2
	Br bias repeatability	°/h	3	1	0.3	3	0.2
	Bt deviation over the whole temperature range	°/h	20	10	2	30	1
	Random walk	°/√h	0.15	0.05	0.02	0.3	0.02
	Bas bias acceleration sensitivity	°/h/ g	2	2	2	2	1
	Resolution	°/h	2		0.5	5	2
	Output noise (half peak)	°/s	0.3	0.25	0.15	0.45	0.03
	Bandwidth	Hz	125				100
	Scale factor nonlinearity	ppm	100
	Scale factor repeatability	ppm	100
	Cross coupling	%	0.1

Parameters (typical values)		Unit	Type I	Type II	Type III	Type IV
Accelerometer	Output range (customizable)	g	±10	±40	±80	±80
	Bs bias stability (10s smooth,1σ, room temperature)	mg	0.05	0.2	1	0.05
	Br bias repeatability	mg	0.2	1	0.5	0.3
	Bt deviation over the whole temperature range	mg	2	2	5	1
	Resolution	mg	0.1	0.1	0.1	0.1
	Bandwidth	Hz	125			100
	Scale factor repeatability	ppm	500
	Scale factor nonlinearity	ppm	500
	Cross coupling	%	0.1

Inertial measurement unit

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