公开(公告)号：US20180224281A1

公开(公告)日：2018-08-09

申请号：US15747882

申请日：2016-05-11

Applicant: CSMC TECHNOLOGIES FAB2 CO., LTD.

Inventor： Huagang WU ,  Xueyan WANG

IPC: G01C19/5776 ,  G01P15/12 ,  G01P15/18

CPC classification number: G01C19/5776 ,  G01P15/0802 ,  G01P15/12 ,  G01P15/18 ,  G05B2219/36159

Abstract: An accelerator comprises: an accelerometer (100), configured to detect an acceleration of a motion of a carrier and output a corresponding electrical signal; a sampling and low-pass filter (200), coupled to the accelerometer (100), and configured to sample the electrical signal regularly and filter a noise from the electrical signal; an amplifier (300), configured to amplify the electrical signal after filtering the noise; an analog-to-digital converter (400), configured to convert the amplified electrical signal into a digital signal; a function control module (500), configured to process the digital signal and output a control signal to control the analog-to-digital converter (400), the amplifier (300), and the sampling and low-pass filter (200); and an oscillator module (600), configured to output, according to the control signal, a sampling signal to the sampling and low-pass filter (200), so as to control the sampling and low-pass filter (200) to sample the electrical signal regularly.

公开(公告)号：US20200064152A1

公开(公告)日：2020-02-27

申请号：US16673634

申请日：2019-11-04

Applicant: CSMC TECHNOLOGIES FAB2 CO., LTD.

Inventor： Huagang WU

IPC: G01C25/00 ,  G01C19/56

Abstract: A method for correcting the driving amplitude of a gyro sensor, mainly comprises adjusting the size of a driving signal (a preset amplitude value) through feedback of a sensor response amplitude signal (an average amplitude value) in a resonance maintaining time period, so that the response amplitude of the resonance maintaining time period tends to he equal, and a stable resonance amplitude is maintained. Also provided is a system for correcting the driving amplitude of a gyro sensor.