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    • 10. 发明授权
    • Thick film strain gage sensor
    • 厚膜应变片传感器
    • US07146862B2
    • 2006-12-12
    • US10860731
    • 2004-06-02
    • Danial L. KoshtReza OboodiJames PiascikJoseph M. Walling
    • Danial L. KoshtReza OboodiJames PiascikJoseph M. Walling
    • G01B7/16
    • G01L1/18
    • A strain gage sensor having improved operational aspects and lower production costs. The strain gage sensor includes two active resistors, two passive resistors, and a structure for minimizing strain experienced by the two passive resistors. The active and passive resistors are attached in a Wheatstone bridge configuration and are Piezoresistors. The active resistors and the strain minimizing structures are mounted on the backing plate. The backing plate or the strain minimizing structure includes alumina ceramic substrate. A voltage to current converter circuit is attached to the active and passive resistors and mounted to the backing plate. Multiple Wheatstone bridge circuits or multiple Wheatstone bridge circuits with voltage to current converter circuits are manufactured on a single backing plate and separated prior to use.
    • 应变计传感器具有改进的操作方面和较低的生产成本。 应变计传感器包括两个有源电阻器,两个无源电阻器和用于最小化两个无源电阻器所经受应变的结构。 有源和无源电阻器连接在惠斯通电桥配置中,并且是压电晶体管。 有源电阻和应变最小化结构安装在背板上。 背板或应变最小化结构包括氧化铝陶瓷基板。 电压 - 电流转换器电路连接到有源和无源电阻器并安装到背板。 多个惠斯登电桥电路或具有电压到电流转换器电路的多个惠斯登电桥电路在单个背板上制造并在使用之前分离。