Technical Characteristics
Developed for stable control needs
LKF-MTG200 3-axis MEMS gyro combo is a highly reliable and cost-effective 3-axis MEMS inertial sensor, which can be widely used in the fields of navigation, control and measurement represented by attitude stabilization. The MEMS gyroscope with high bandwidth, low latency and low noise is used inside the system, and it has a good mechanical environment adaptability, which can provide stable control of complex products.
High-precision device manufacturing and system calibration compensation technology
The company has accumulated a series of key technologies during the research and development of this project to ensure the high performance of the product. Meanwhile, the system adopts high-speed sampling, static error compensation (bias, scale factor, installation error, etc. for the whole temperature range), dynamic error compensation and other technologies to ensure that the product obtains the best performance in the process of user's use.
The LKF-MG200 3-axis MEMS gyro combo system utilizes a high bandwidth, low latency, low noise MEMS gyro inside the system and can maintain its performance in a wide range of temperature environments, a large number of levels of vibration environments, and can provide accurate angular motion information for stabilizing and controlling the servo system with a guide head.
Table 1 LKF-MTG200 Tri-axis MEMS Gyroscope Combination Performance
| MEMS Gyro |
| Model | MTG200 |
| Range (°/s) | ±500 |
| Bias (°/h, 3σ.full temp.) | ≤30 |
| Bias stability (°/h, 10s smoothing) | ≤3 |
| Bias stability (°/h, allan) | ≤0.1 |
| Bias repeatability (°/h) | ≤1 |
| Angular random wandering(°/√h) | ≤0.1 |
| Term related to g (°/h/g) | ≤0.5 |
| Scale factor nonlinearity (ppm) | ≤100 |
| Bandwidth (Hz) | 250 |
| System |
| Power supply (V) | 5±0.2 |
| Power (W) | ≤1.5 |
| Start-up time (s) | 2 |
| Communication interface | 1 × RS-422, 1 × synchronous output, 1 × synchronous input |
| Update rate (Hz) | 2KHz |
| Dimension (mm×mm×mm) | 44.8×38.6×21.5 |
| Weight (g) | ≤50 |
| Working environment |
| Operating temperature (℃) | -40～80 |
| Storage temperature (℃) | -55～85 |
| Vibration (g,Rms) | 7.72 |
| Shocks(g) | 1000g(1ms) |
Table 2 The Electrical Interface Of The Gyroscope
| Pin | Definition | Notes |
| 8 | POWER_IN | 5-12V power supply |
| 15 | GND |
| 10 | RS422 R+ | RS422 interface |
| 2 | RS422 R- |
| 9 | RS422 T+ |
| 1 | RS422 T- |
| 13 | GND |
| 11 | PPS_IN | PPS signal input |
| 4 | TOV | General-purpose input/output (GPIO), 3.3V logic level, triggered on rising edge |
| 12 | GND |
Main Features
100% localization of components
In-situ replacement for STIM210
High performance, small size
Low weight, low power consumption
High bandwidth, low latency
-40℃ to +80℃ full temperature calibration compensation
2KHz high speed sampling
Resistant to harsh mechanical environments
With software online upgrade function
Applications
Guide head stabilization
Attitude control
Photoelectric pods
Servo control
Stable platform
Figure 1 Outline Structure Dimension Diagram
