The present invention provides a miniature
inertia measuring unit with an implicit structure that
processing a cube base by adopting synthetical
ceramic material according to a certain requirement of verticality, planeness and degree of smoothness. The circuit is plated on the surface of the base and a
welding plate is attached to the surface of the base by using the character that the surface made of synthetical
ceramic material with a certain degree of smoothness can be plated with a circuit according to the packaging of the
accelerometer and the top, the elementary diagram of circuit and the installation requirement. The
accelerometer and the top are plated on the two faces that are vertical with each other of the base to assure that the
accelerometer and the top with there sensitive directions are vertical with each other. The edge of the bottom surface of the cube base is attached with a welded corner plate to make that the circuit on the bottom surface of the base can not only be connected to the lateral circuit, but also can be plated on the GNC
system board of a miniature aerocraft. The base is used as a circuit board of the IMU
system and as a supporting structure of the accelerometer and the top. The miniature IMU in the present invention which haves the characteristics of small, light, high-precision and low-cost can be applied in the fields of miniature aerocraft, a miniature
robot, etc.