Miniature high performance IMUs offer up to 6G

Seiko Epson has developed a series of inertial measurement units (IMU) for industrial applications. These IMU series offer outstanding measurement accuracy and stability while being among the smallest and most energy efficient IMUs in its class.

These IMU's include triple gyroscopes and a tri-axis accelerometer, for 3 or 6 degrees of freedom. The gyroscope provides high accuracy and stability, while the accelerometer offers a dynamic range of up to +/- 6G. It offers excellent angular rate measurement performance and stability. These devices are also equipped with industry-standard SPI and UART interfaces and consume 30mA when operating at 3.3V.

Epson's current available IMU, the M-G350, has earned high marks from customers for its small size, light weight, and outstanding accuracy and stability. With the addition of the M-G352 and M-G362 to the product lineup, Epson will be able to support an even broader range of applications.

The M-G352 and M-G362 are equipped with additional new features, including a higher output data rate, an external trigger input, and counter reset function, making it easy to synchronize measurements with other sensors or with a GPS module in a user's system. Epson plans to begin shipping samples of the M-G362 and M-G352 in August and October of 2013, respectively.

Upcoming small IMU series
Seiko Epson recently announced that they successfully developed the world's smallest IMU. The new M-V340 measures 10 x 12 x 4 mm, weighs 1 gram, and consumes just 18 mA of current, typical. Epson will begin shipping samples of the M-V340 in December 2013.

Gyro range± 300 °/sec.± 450 °/sec.± 150 °/sec.
Gyro bias instability 6 °/hr6 °/hr3 °/hr
Accelerometer range± 3 G± 6 G± 3 G
Data output format16 bit16/32 bit16/32 bit
Data output speed (Sps)1.000 (max.)2.000 (max.)2.000 (max.)
Operating temperature-40°C to +85°C-40°C to +85°C-40°C to +85°C

•  Motion analysis & control
•  Altitude control of unmanned aircraft / systems
•  Navigation systems
•  Vibration control & stabilization of cameras, antennas eg.
•  Pointing & tracking systems

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