DMU41 IMU Sensor

High-Performance MEMS IMU with Ultra-Low Bias Instability

Silicon Sensing DMU41 IMU Sensor is a high-performance MEMS-based Inertial Measurement Unit engineered for precision and reliability. With ultra-low bias instability and exceptional noise performance, DMU41 is ideal for demanding applications in aerospace, marine, and industrial environments. Its rugged design ensures consistent and accurate data in challenging conditions, making it a trusted choice for critical navigation and stabilization systems.

Supply Voltage	4.75V to 32V
Angular Random Walk	0.02˚/√hr
Bias Instability	0.1°/hr, 0.015mg
Bandwidth (nominal)	IMU>77Hz Acc sencor 250Hz Gyro sensor 150Hz
Operating Temperature	-40°C to +85°C
Typ. Current Consumption	125mA (at 12V)
Angular Rate Range	±490˚/s
Axes of Acceleration	3
Velocity Random Walk	0.05m/s/√hr
Axes of Angular Rate	3
Noise Spectral Density Gyro	0.05 °/s rms
Noise Spectral Density Acc	0.9 mg rms
Rate SF over Temp	-700ppm to +700ppm (over life)
Rate Bias Over Temperature	-30°/h to +30°/h (over life)
Acc Bias over Temp	-7mg to +7mg (over life)
Acc SF over Temp	-1000ppm to +1000ppm (over life)
Baud Rate	115200/ 230400/ 460800/ 921600
Accelerometer Bias Instability	15μg 1σ to 30μg Max
Vibration Rectification Error	Acc: ±0.006°/s/g²rms Gyro: ±0.15mg/g²rms

Precision 6-DOF MEMS Inertial Measurement Unit

Silicon Sensing’s class leading VSG3QMAX inductive gyro and dual-axis capacitive accelerometer MEMS

Excellent Bias Instability and Random Walk Angular - 0.1°/hr, 0.02°/√hr Linear - 15µg, 0.05m/s/√hr

Non-ITAR

Compact and lightweight - 50.5 x 50.5 x 51.0 (mm), <170g

Internal power conditioning to accept 4.75V to 32V input voltage

External synchronization (PPS external trigger)

RS485 & RS422 interface and sync pulse output

-40°C to +85°C operating temperature range

Low power consumption <2.5W

Sealed aluminium housing (IP67)

Designed to support RTCA/DO-178/DO-254/ DO-160G certification

RoHS compliant

In-house manufacture from MEMS fabrication to IMU calibration

Evaluation kit and integration resources available

First class customer technical support

Fixed interface
Guidance, navigation and control (Space, Air, Land, Sea, Subsea)

MEMS alternative to FOG/RLG IMUs

Platform/camera/antenna stabilisation

GPS drop-out aiding

GNSS (Global Navigation Satellite System)

Airborne, land-based and hydrographic survey and mapping

AHRS (Attitude and Heading Reference System)

INS (Inertial Navigation Systems)

Small satellite stabilisation and attitude control

Autonomous vehicles, UAVs and ROVs

Machine control and motion measurements

Launch vehicle
Part Number: DMU41-01-0100

High Performance MEMS Inertial Measurement Unit (USER CONFIGURABLE interface version)

Part Number: DMU41-02-0100

High Performance MEMS Inertial Measurement Unit (FIXED interface version)

Part Number: DMU41-00-0500

Customer Evaluation Kit (EVK) comprising an RS422 to USB Connector, USB Driver and Data Logging Software, Cables and Connectors (DMU41 is NOT included)

Part Number: Glenair MWDM2L-15P-6E5-18

Mating connector plug and cable for DMU41