Inertial measurement unit

GS-901

The nine-axis MEMS inertial measurement unit is composed of three-axis MEMS gyro chips, three-axis MEMS accelerometer chips, three-axis magnetometer chips, atmospheric pressure sensors, temperature sensors, digital signal processing circuits, structure, and software. It is used to measure the real-time three-axis angular velocity and linear acceleration of the carrier. The product utilizes a unique structural design, with software incorporating algorithms such as full-temperature compensation, installation misalignment angle compensation, and nonlinear compensation. This ensures excellent performance even in static, dynamic, and harsh environmental conditions, providing users with excellent and reliable measurement data.
Details
Parameter

OTHER INTRODUCTION

l  Low vibration rectification error.

l  Good repeatability and high reliability.

l  Small size, low power consumption and light weight.

l  Sensor full factor compensation.


SCENE APPLICATION

l  Guided munitions.

l  EOP (Electro-optical Pod).

l  Stabilization platform.

l  High-speed railway.

l  Oil exploration.

Parameters

(typical values)

UnitBasic type
Gyroscope

Output range

(customizable)

°/s±450

Bs bias instability 

(@Allan variance)

°/h0.3

Bs bias stability

(10s smooth,1σ, room temperature)

°/h
3
Br bias repeatability
°/h5
Bt deviation over the whole temperature range°/h20
Bas bias acceleration sensitivity°/h/g2
Scale factor nonlinearityppm100
Scale factor repeatabilityppm100
Random walk°/√h0.15
Resolution°/h2

Cross coupling

%

0.1
BandwidthHz250


Parameters 

(typical values)

UnitBasic type

Accelerometer

Output range

(customizable)

g±20

Bs bias instability 

(@Allan variance)

mg0.07

Bs bias stability 

(10s smooth,1σ, room temperature)

mg
0.25

Br bias

repeatability

mg0.5

Bt deviation over the whole temperature range

mg3
Scale factor repeatabilityppm500
Scale factor nonlinearity
ppm500
Random walkm/s/√h0.029
Cross coupling%0.1
BandwidthHz250
Interface-SPI


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