ACCELERATION SENSOR

Abstract: an acceleration sensor, including a first acceleration detection unit configured to detect acceleration in an out-of-plane z-axis direction, a second acceleration detection unit configured to detect acceleration in an in-plane x-axis direction and/or an in-plane y-axis direction, a base, a connecting arm, a first anchor point, a first elastic member and a second elastic member. the first acceleration detection unit includes a first seesaw unit and a second seesaw unit arranged opposite to each other to define an annular structure. the annular structure surrounds an outer side of the second acceleration detection unit. the first anchor point is located at a middle part of the substrate, and the connection arm is fixed to the substrate through the first anchor point. the connection arm is located between the first acceleration detection unit and the second acceleration detection unit. a structure design thereof is reasonable and the anti-interference capability is great.

Inventor(s): Lingcheng Kong, Shitao Yan, Zhan Zhan, Xiao Kan, Zhao Ma, Shan Yang, Yang Li, Kahkeen Lai, Qiuyu Tan

CPC Classification: G01P15/18 (MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow , ; monitoring speed or deceleration of electrically-propelled vehicles ; vehicle lighting systems adapted to indicate speed ; determining position or course in navigation, measuring ground distance in geodesy or surveying ; combined measuring devices for measuring two or more variables of movement ; measuring velocity of sound ; measuring velocity of light ; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, ; measuring speed of nuclear radiation ; measuring acceleration of gravity ; {measuring or recording the speed of trains ; speed indicators incorporated in motor vehicles ; measuring frequency or phase ; traffic control }))

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