The KT-EX6-15 micro inertial measurement unit consists of a three-axis gyroscope, a three-axis meter, a temperature sensor, a signal processing board, a structure and necessary software. It is used to measure the three-axis angular rate and acceleration of the carrier, and outputs three angular rates, three acceleration data and temperature values ​​after error compensation (including temperature compensation, installation misalignment angle compensation, nonlinear compensation, etc.) through the RS-422 serial port according to the agreed communication protocol.