ER-MIMU-01 North-Seeking MEMS IMU
Introduction
Inertial Measurement Unit, referred to as IMU, is a device to measure the attitude angle (or angular velocity) and acceleration of the three axis of the object. Gyroscope and accelerometer are the core devices of inertial navigation system (INS). With the built-in accelerometer sensor and gyroscope, the IMU can measure the linear acceleration and rotation angular velocity from three directions and can obtain the attitude, velocity and displacement information of the carrier through the resolving.
ER-MIMU-01 uses MEMS accelerometer and gyroscope with high quality and reliability, RS422 and external communication, baud rate can be flexibly set between 230400~921600, through the communication protocol to set the user’s required communication baud rate. With X, Y, Z three-axis precision gyro, X, Y, Z three-axis accelerometer with high resolution, can be output by RS422 X, Y, Z three axis of gyroscope and accelerometer’s original hexadecimal complement data (including gyro hexadecimal complement the numerical temperature, angle, the accelerometer hexadecimal temperature, the acceleration hexadecimal complement number); It can also output float dimensionless values of the gyroscope and accelerometer processed by the underlying calculation.
It uses modular design, the customer's system only needs to provide two power supplies (6-12V) and four data lines (T+, T-, R+, R-), and then remove the shell or shell + base plate according to the demand, it can be integrated in the customer's system, product power supply and data collection can not be through the 15-pin plug provided by us, the customer system can directly obtain the IMU data. At the same time, the volume and weight of our products will be greatly reduced after removing the bottom shell.
Features
Gyro bias instability: <0.02deg/hr
Gyro bias stability (10s 1σ): <0.1deg/hr
Gyro angular random walk: <0.005 °/√h
Size: 43.2mm*43.2mm*35.5mm (without shell)/65mm*70mm*45.5mm (with shell)
Accelerometer bias repeatability: 100ug
Accelerometer bias stability (10s) (1σ): <50ug
Accelerometer class II non-linearity coefficient: <100ug/g2
Can find north independently
Small size and light weight
Modular design, strong applicability
Application
North seeking in logging tools/gyro tools
Pointing, steering and guiding in advanced mining/drilling equipment
Initial alignment in UAV launch system
Direction pointing and tracking in satellite antenna, target tracking system
Orientating and positioning in railway train system
Precision platform attitude measuring and controls
Precision attitude, position measuring in navigation grade MEMS IMU/INS
North finding and positioning in land surveying/land mobile mapping system
Specifications
| Item | Parameter | Unit | ||
| Gyro performance | A | B | C | / |
| Range | 50 | 100 | 200 | deg/s |
| Bandwidth (-3dB) | 12 | 12 | 50 | Hz |
| Scale Factor at 25°C | 160000 | 80000 | 40000 | LSB/(deg/s) |
| Scale Factor Repeatability (1σ) | <50 | <50 | <100 | ppm |
| Scale Factor VS Temperature (1σ) | 300 | 300 | 300 | ppm |
| Scale Factor Non-Linearity (1σ) | <200 | <200 | <300 | ppm |
| Bias Instability | <0.01 | <0.02 | <0.02 | deg/hr |
| Bias stability (10s 1σ) | <0.05 | <0.1 | <0.1 | deg/hr |
| Angular Random Walk | <0.0025 | <0.005 | <0.005 | °/√h |
| Bias error over temperature (1σ) | 3 | 3 | 5 | deg/hr |
| Bias temperature variations, calibrated (1σ) | <0.1 | <0.3 | <0.5 | deg/hr |
| Bias Run-Run (1σ) | <0.1 | <0.1 | <0.1 | deg/hr |
| Accelerometer performance | ||||
| Range | 30 | g | ||
| Bandwidth | 100 | Hz | ||
| Bias Stability (10s)(1σ) | <50 | ug | ||
| Bias Repeatability | 100 | ug | ||
| Bias Temp Coefficient | <20 | ug/℃ | ||
| Bias Temp Hysteresis | <1.5 | mg | ||
| Scale Factor Non-linearity | <500 | ppm | ||
| Scale Factor Repeatability | <30 | ppm | ||
| Scale Factor Temp Coefficient | 10 | ppm/℃ | ||
| Class II Non-linearity Coefficient | <100 | ug/g2 | ||
| Scale Factor | 250000 | μg/LSB | ||
| System Performance | ||||
| Supply Voltage | 6~12V | |||
| Supply Consumption | 2W | |||
| Interface | RS422 | |||
| Vibration | 6.06g (10~2000Hz) | |||
| Shock | 5000g, 0.1ms | |||
| Operate Temp | -40℃~ + 80℃ | |||
| Storage Temp | -55℃~ + 105℃ | |||
| Weight | ≤100g (without shell)/≤220g (with shell) | |||
| Size | 43.2mm*43.2mm*35.5mm (without shell)/65mm*70mm*45.5mm (with shell) | |||
Application Techniques
1.IMU working principle & Tactical grade IMU product recommendations
2.Choosing an IMU: FOG IMUs vs MEMS IMUs
3.Application of IMU in the Field of Drones
5.What is the Difference Between IMU and AHRS?
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