BW-IMU900 Small-Size Three-Axis Inertial Measurement Unit IMU RS422

Place of Origin CHINA
Model Number BW-IMU900
Minimum Order Quantity 1 set
Packaging Details BWSENSING BOX,Express package
Delivery Time 5-8 working days
Payment Terms T/T

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Product Details
Small Dimension L100 * W100 * H100(mm) Accelerometer Range ±30g
Random Walk Coefficient ≤0.01° /h1 /2 Scale Factor Repeatability (1σ) ≤0.05mg
Bias Stability At Full (100s,1σ,-40~+60℃) ≤0.1°/h Power Supply 10~30V
Acceleration Range ±30g Measuring Range ±300°/s
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10V Three Axis imu inertial movement unit


imu inertial movement unit 0.01 deg/h


400Hz micro inertial measurement unit

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Product Description

BW-IMU900 Small size Three-Axis Fiber Optic Gyroscope Inertial Measurement Unit 



BW-IMU900 is a small-sized high-precision three-axis fiber optic gyroscope inertial measurement unit developed and produced by Bewis.

It uses a highly reliable MEMS accelerometer and a three-axis fiber optic gyroscope.The original data deviation is estimated by the 6-state Kalman filter with appropriate gain, and the measurement accuracy is ensured by the algorithm. The parameters are compensated by non-linearity and orthogonality.


Performance index

Fiber optic


Bias stability(10s,1σ)(°/h) ≤0.01°/h
Bias repeatability (1σ)(°/h) ≤0.01°/h

Bias stability at full


Scale factor nonlinearity (1σ) ≤50ppm
Scale factor repeatability ≤50ppm
Measuring range ±300°/s
Random walk coefficient ≤0.005° /h1 /2
bandwidth ≥400Hz
Accelerometer Bias stability at room (10s,1σ) ≤0.05mg
Bias repeatability at room ≤0.05mg
Bias stability at full (10s,1σ) ≤0.1mg
Bias repeatability at full ≤0.1mg
Scale factor nonlinearity(1σ) ≤100ppm
Scale factor repeatability(1σ) ≤100ppm
Range ±30g
Other indicators Operating temperature -40~+60℃
Storage Temperature -45~+75℃
Dimension 100×100×100mm
Start time ≤1min
Weight 2000g







































BW-IMU900 Small-Size Three-Axis Inertial Measurement Unit IMU RS422 0

BW-IMU900 Small-Size Three-Axis Inertial Measurement Unit IMU RS422 1


Unmanned boats and underwater vehicles

Unmanned drive and special vehicles

Unmanned Aircraft

Large Ship



Q1: Accuracy definition of products

A: RMS accuracy, the accuracy of each product can be traced.Accuracy test report can be provided if required.


Q2: How to select suitable model?

A: Users should check the following points:

a. Single or dual axis?

b. Common protocol, Modbus or CAN?

c. Dynamic or static Application scenarios?

d. Horizontal or vertical installation?



Q3: How to purchase?

A: If you want sample, please purchase on BWSENSING online shop. We accept Paypal/TT/CC.If you purchase in bulk, it is recommended to consult the sales for the best price.


Q4: How long is the warranty period?

A: One year.



Company introduction

Wuxi Bewis Sensing Technology LLC(BWSENSING) is an innovative fast growing company established in 2010. The company was born in The Institute of Microelectronics (IME) of Peking University. We have achieved the top spot in the middle and high-end industry applications in the Chinese market.

From 2019, BWSENSING ® is approved as our global brand.With 10 years experience in the research-design-development and manufacture of a range of Inertial sensor technology, BWSENSING posses the skills, knowledge and experience to provide fully integrated OEM/ODM design and manufacturing services for Inclinometer, Electronic Compass, IMU, AHRS, GNSS/INS and Fiber Optic Gyroscope. As the company co-founder Dr. Guangyi Shi said, we will use the Accurate and Cost-effective sensors to make a greater contribution to the global society for a better IoT world.


BW-IMU900 Small-Size Three-Axis Inertial Measurement Unit IMU RS422 2