Product recommendation | EPSON's new IMU sensor M-G570PR has been put into production, with even more powerful functions!

Seiko Epson Corporation (hereinafter referred to as "Epson") has developed and recently mass-produced a new high-quality product of Inertial Measurement Unit ("IMU") with high-performance six axis sensors. The new model is M-G570PR, which has the advantages of high precision, low noise, and IP67 rating for dust and water resistance compared to the older model M-G370PDG.

Since 2011, Epson has launched its first IMU with quartz crystal gyroscope sensor ② as its core. Since then, Epson's IMU has been used in a range of customer applications, from precision agriculture (GNSS) ③, small satellites ④, consumer and industrial components, as well as EO/IR camera gimbal ⑤ to antenna platforms for vibration control and stability, earning an excellent reputation for outstanding performance and quality. In recent years, the use of IMU has expanded to fields such as measurement, aviation, and satellite video photography, leading to an increasing demand for more precise position and attitude control. Therefore, the demand for high-precision performance IMUs is on the rise, which is crucial for IMUs in attitude control.

Applied to large-scale photographic equipment installations

The new M-G570PR is based on the existing M-G370PDG and utilizes Epson's proprietary multi-sensor technology to improve performance by combining multiple IMUs. This achieves the instability of gyroscope bias ⑥ 0.5 °/h and angle random walk ⑦ 0.04 °/√ h, achieving more accurate measurements.

The M-G570PR is enclosed in a metal casing with an IP67 protection rating, providing a high level of dust and water protection. It also comes standard with the RS-4228 ⑧ serial communication interface commonly used in the industrial field. Therefore, this IMU can be used for various industrial applications that require high stability and reliability.

Industrial equipment used in harsh environments

Given the ongoing technological changes in today's society, Epson believes that the demand for precision sensors will only continue to expand in the future. We will continue to leverage our innovative concepts of efficiency, compactness, and precision to provide compact, lightweight, and low-power sensing systems with high precision, stability, and low noise, making significant contributions to our customers' products and services.

Product Features

·0.5 °/h gyroscope bias instability

·0.04 °/√ h angle random walk

·A gyroscope sensor with a nonlinear coefficient ⑨ of 0.05% at full range

·IP67 protection level, RS-422 interface, with fault diagnosis function

Product application

·Used for vibration control of EO/IR camera universal joints, antennas, small satellites, consumer and industrial components, etc.

·Navigation systems (GNSS, INS ⑩, high-precision locators), etc.

·Autonomous vehicles (industrial drones, ground vehicles, maritime detectors, etc.)

·Vibration, angle, trajectory measurement, etc. of industrial equipment.

General specifications for M-G570PR and conventional products

Explanation of IMU related terms:

1: Inertial Measurement Unit (IMU)

IMU is a device used for sensing inertial motion. It consists of a three-axis angular velocity sensor and a three-axis accelerometer.

2: Gyroscope sensor (angular rate sensor)

3: Global Navigation Satellite System (GNSS)

A satellite system used to accurately locate the geographic location of any place in the world.

4: This product and other Epson IMUs do not comply with space usage standards.

5: EO/IR camera universal joint

A photoelectric and infrared camera system.

6: Gyroscope bias instability

The Allan variance component that represents the level (zero power) characteristic is called bias instability. It is related to 1/f noise and is one of the important indicators of sensor potential.

The Allan variance, an indicator of sensor performance, represents the stability of static output. The horizontal axis represents the average time of the data, and the vertical axis represents the distribution of the average value separated by the average time. As is well known, sensor characteristics exhibit the slope of Allan variance at -1, -1/2, 0, 1/2, and 1st power slopes. Allan variance is an indicator that represents the average time. The smaller the value, the higher the stability and the better the performance

7: Angle random walk

The part of Allan variance with a slope of -1/2 is called angle random walk and is correlated with white noise.

8：RS - 422

A serial communication standard commonly used in industrial systems and other applications that require reliable long-distance serial communication.

9: Nonlinear

The maximum deviation of the output of a gyroscope sensor or accelerometer relative to the input approximate straight line. It is usually expressed as a percentage of the full scale.

10: INS (Inertial Navigation System)

Measure the rotational angle (angular velocity) of an object relative to a reference axis within a unit of time.