The movable fixture of Inertial Measurement Unit and the application Inertial Measurement Unit

A kind of Inertial Measurement Unit (100), it includes sensor (102), heat conductivity heat-insulating main body (201) and multiple heating sources (203), and the sensor (102) is arranged on the heat conductivity heat-insulating main body (201)；The Inertial Measurement Unit (100) produces heat using multiple heating sources (203), and conducted the heat produced by the multiple heating source (203) to the sensor (102) by the heat conductivity heat-insulating main body (201), make to maintain default temperature around the sensor (102).