Title: Differential piesoelectric two dimension acceleration sensor
Application Number: 200610054418 Application Date: 2006.07.06
Publication Number: 1900724 Publication Date: 2007.01.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01P15/09;G01P15/18
Applicant(s) Name: Chongqing Univ. Address:
Inventor(s) Name: Qin Lan;Liu Jun;Liu Jingcheng;Li Min
Attorney & Agent: yuan qiangmin
Abstract:
    The sensor includes following parts and structures: insulative inertial mass block in cube; four pieces of XO0 cutting type quartz wafer with electrode are jointed four walls of the inertial mass block; the inertial mass block and quartz wafers are instilled inside base frame composed of case body and case cover. Each insulative force transmission block is pasted on outside each quartz wafer. Pretension screw of withstanding each piece of force transmission block is arranged on four walls of the base frame. Through signal lead wire, one end of the case cover is connected to electrode, and the other end is connected to connector plug, which is connected to differential type charge amplifier. The sensor possesses high sensitivity, or, when outside force is smaller, output signal is still strong so as to reduce measuring error brought from environmental change. Features of the sensor are: light weight, simple structure, easy of manufacture.
Time: 8
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