ER-MG-056 Economical MEMS Gyroscope
Introduction
The ER-MG-056, a low cost Tactical Grade MEMS Gyro with 1 °/hr bias of instability and 0.25°/√h of angular random walk, is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±400°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.
The ER-MG-056 is intended for industrial, instrumentation, stabilization, and other high performance applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG-056 to operate in exceedingly harsh environments where shock and vibration are present.
The ER-MG-056 is available in a hermetically sealed ceramic LCC surface mount package, and is capable of operating at 5V supply and a wide temperature range (−40°C to +85°C).
Features
Proven and robust silicon MEMS gyro
Up to ±400°/s measurement range
1°/hr bias instability
0.25°/√hr angular random walk
Digital output (SPI slave)
5V operation (4.75~5.25V supply)
Low power consumption (35 mA)
High shock and vibration rejection
Hermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)
Integrated temperature sensor
RoHS compliant
Applications
Azimuth, attitude, position measuring and keeping in GNSS-assisted INS
Heading, pitch, roll measuring in AHRS for UAV
Motion survey and keeping in MRU
Attitude& azimuth keeping, positioning in IMU
Guidance, navigation, control in tactical MEMS system
Stabilizing & pointing in satellite antenna, target tracking system
Robotic control & orientation in autonomous machines, unmanned vehicles
Specifications
Parameters | ER-MG-056 | Unit |
Input range | 400 | dps |
Bandwidth | 200 | Hz |
Data output rate | 2K | Hz |
Latency | 2 | ms |
Scale factor | 20000 | LSB/°/s |
Scale factor non-linearity | 200 | ppm |
Scale factor temp drift (1σ) | ±500 | ppm |
Scale factor repeatability (1σ) | <10 | ppm |
Bias temp drift (1б) | 50 | dph |
Bias temp drift (1б) (After temp compensation) | 20 | dph |
Bias instability | 1 | dph |
Bias stability (1б 10s) | 5 | dph |
Bias stability (1б 1s) | 15 | dph |
Bias repeatability | 5 | dph |
RMS noise (1-200Hz) | 0.1 | dps |
Random walk (ARW) | 0.25 | °/√h |
Start up time | 0.8 | s |
G-sensitivity | 5 | dph/g |
VRC | 0.5 | °/h/g²rms |
Shock | 12g | rms |
Vibration | 1000g 5ms 1/2 sine | / |
Operation temperature | -40~85 | °C |
Application Techniques
1.MEMS Gyroscope: Error Compensation By Allan Variance Method
2.Bandwidth test method of MEMS gyroscope
3.Basic Knowledge of Bias Stability of MEMS Gyroscope
4.Research on scale factor nonlinearity of MEMS gyroscope
5.Integrated method of three-axis MEMS gyroscope
6.MEMS Gyroscope: The Third Generation Of Gyroscopes Is Leading The Way