IntroductionThe ER-MG2-022 is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±100°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.The ER-MG2-022 is intended for north seeking applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG2-022 to operate in exceedingly harsh environments where shock and vibration are present.The ER-MG2-022 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 +125°C).
FeaturesHigh temperatureSpecial for borehole survey toolsProven and robust silicon MEMS gyro0.02°/hr bias in-run stability0.025°/√hr angular random walkDigital output (SPI slave)5V operation (4.75 ~ 5.25V supply)Low power consumption (35 mA)High shock and vibration rejectionHermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)Integrated temperature sensorRoHS compliant
ApplicationNorth seeking in logging tools/gyro toolsPointing, steering and guiding in advanced mining/drilling equipmentPrecision attitude, position measuring in navigation grade MEMS IMU/ INSPetroleum exploration
Specifications
| Parameter | ER-MG2-022 | Unit |
| High Temperature MEMS Gyro Range | 100 | deg/s |
| Bandwidth (BW@3DB Customizable) | 12.5 | Hz |
| Output Accuracy (Digital SPI) | 24 | bits |
| Data Output Rate (ODR)(Customizable) | 2K | Hz |
| Delay (Customizable) | <3 | ms |
| Bias Stability (Allan Curve @Room Temp) | <0.02 | deg/hr (1σ ) |
| Bias Stability (10s standard deviation @Room Temp） | <0.1 | deg/hr (1σ ) |
| Bias Stability (1s standard deviation @Room Temp） | <0.3 | deg/hr (1σ ) |
| Bias Drift | <0.25 | deg/hr/°C |
| Bias Drift (After Temp Compensation) | <0.05 | deg/hr/°C |
| Bias Repeatability (Room Temp) | 0.1 | deg/hr (1σ ) |
| Scale Factor Repeatability (Room Temp) | <100ppm | ppm (1σ ) |
| Scale Factor Temp Drift (1sigma) | ±500ppm | ppm (1σ) |
| Scale Factor Nonlinearity (Full Temp) | <300ppm | ppm |
| Random Walk (ARW) | <0.025 | °/ √h |
| Resolution | 0.05 | °/hr |
| Bandwidth Noise (Peak to Peak) | ±0.1 | deg/s |
| G-value Sensitivity | <1 | °/hr/g |
| Vibration Rectification Error (12gRMS，20-2000) | <1 | °/hr/g (rms） |
| Power-on Time (Valid Data) | 1 | s |
| Shock (charged) | 200g (1ms, 1/2 sine) | |
| Shock Resistance (uncharged) | 1.8wg 3ms | |
| Vibration (charged) | 12g rms (20Hz to 2kHz) | |
| Operation Temp | -40°C~+125°C | |
| Storage Temp | -55°C~+125°C | |
| Size | 11x11x2mm | |
| Package | LCC | |
技术参数
| 规格项 | 参数值 |
|---|---|
| 陀螺类型 | 振动 |
| 产品类型 | 敏感芯片 |
| 角速率量程 | 100 deg/sec |
| 零偏稳定性 | 0.02 deg/hr |
| 随机游走 | 0.025 deg/hr/sqrt |
