MEMS inertial navigation system
Introduction
ER-MINS-02 is an inertial navigation system equipped with a high-performance MEMS gyroscope and MEMS accelerometer. It can also be externally connected to various sensor interfaces such as satellites, odometers, and barometers, and can provide continuous, accurate and reliable positioning, attitude and speed information. It is equipped with multiple communication interfaces and provides standardized user communication protocols, which can meet the navigation requirements in complex environments.
Feature
1.High reliability and high precision MEMS gyroscope (bias instability <0.02°/h) and large range high precision MEMS accelerometer (±60g, bias instability <2ug).
2.The working temperature is -40℃~+80℃, and the temperature compensation of the gyroscope and accelerometer is carried out in the working temperature range, which has better bias performance.
3.It can be externally connected to satellites, odometers, barometers, etc.
4.Variety of data interface, more easy to install and use, support RS422/RS232 and CAN
5.Precision aluminum alloy shell, high reliability, can be widely used in land, aviation, navigation.
Application areas
Short-range missile guidance
Large UAV, flight data recorder, intelligent unmanned vehicle,
Urban mapping, hydrological survey,
Roadbed positioning and orientation.
Specifications
1.System parameter
| Azimuth accuracy | ≤ 1°secψ (1σ) |
| Attitude accuracy | ≤ 0.1° (1σ) |
| Azimuth holding time | 1°/h |
| Attitude holding time | 0.1°/h |
| Positional accuracy(50%CEP) | ≤ 1.5nmile/10min |
| Horizontal velocity accuracy(RMS) | ≤1.8m/s |
| Positional accuracy(50%CEP) | ≤ 0.8nmile/10min (The two position alignment, alignment time is less than 30 min) |
| Horizontal velocity accuracy(RMS) | ≤ 1m/s (The two position alignment, alignment time is less than 30 min) |
2.Sensor parameter
| Gyro Performance | ||
| Item | Parameter | Unit |
| Range | ±100 | deg/s |
| Bandwidth(-3dB) | 12 | Hz |
| Scale Factor at 25℃ | 80000 | LSB/deg/s |
| Scale Factor Repeatability (1σ) | <100 | ppm |
| Scale Factor VS Temperature (1σ) | 100 | ppm |
| Scale Factor Non-Linearity (1σ) | <100 | ppm |
| Bias stability (1σ 10s) | <0.2 | deg/hr |
| Bias Instability | <0.05 | deg/hr |
| Bias Run-Run(1σ ) | <0.3 | deg/hr |
| Angular Random Walk | <0.01 | °/ √h |
| Noise Peak to Peak | <0.2 | deg/s |
| Accelerometer Performance | ||
| Item | Parameter | Unit |
| Range | ±60 | g |
| Bandwidth | >150 | Hz |
| Bias stability (1σ 10s) | <5 | ug |
| Bias Instability(Allan Curve) | <2 | ug |
| Bias Month Repeatability | <±0.03 | mg |
| Scale Factor Non-Linearity | <500 | ppm |
| Scale Factor Month Repeatability | <±20 | ppm |
| Class II Non-linearity | <10 | ug/g2 |
| Scale Factor | 20000000 | LSB/g |
| Power ＆ Interface | |
| Supply Voltage | 6~12V |
| Supply Consumption | 4W |
| Interface | 1Way-RS422 or 1Way-RS232 and 1Way-CAN and 2Way-TTL(NMEA out and RTCM in) |
| Environment | |
| Operate Temp | -40℃~+80℃ |
| Storage Temp | -45℃~+85℃ |
| Dimension & Weight | |
| Weight | <300g |
| Size | 65mm*70mm*45.5mm |
Dimension
