LINEAR MICROACCELEROMETER Russian patent published in 2015 - IPC G01P15/08 

FIELD: instrumentation.

SUBSTANCE: linear microaccelerometer contains a base, a cover, a frame with inertial mass made from silicon, installed with a possibility of linear movement on elastic suspensions along a longitudinal axis, a position sensor of and a power supply, also two comparators, two amplifiers of current, a key, an electromagnetic power drive consisting of 2N coils placed on 2N magnetically conducting cores with concentrated poles directed towards the face sides of inertial mass are added to the device. The magnetically conducting cores are placed on opposite face sides of the frame, N from each side, and on the surface of the inertial mass around each end face the magnetic conductors closing magnetic fluxes of coils are located. Inputs of coils are connected to the key output the inputs of which through comparators are connected to the position sensor which is designed as optical, and consists of a radiator and photodetectors. The radiator is connected to the power supply, and between the radiator and the photodetectors the optical slot is located.

EFFECT: acceleration measurement accuracy improvement.

1 dwg