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1. 发明公开

EP3196619A1 PASSIVE TEMPERATURE ERROR COMPENSATION FOR SENSORS 有权
标题翻译：传感器的无源温度误差补偿
公开(公告)号：EP3196619A1
公开(公告)日：2017-07-26
申请号：EP17152014.1
申请日：2017-01-18
申请人： Rosemount Aerospace Inc.
发明人： FAHIMI, Saeed , HUYNH, Cuong Tho
IPC分类号： G01L9/02 , G01D3/036 , G01B7/16 , G01L1/22 , G01L9/04
CPC分类号： G01B7/18 , G01D3/036 , G01L1/2281 , G01L9/0051 , G01L9/045
摘要： A sensor system includes a plurality of strain gauges (12) and a passive compensation circuit (30). The plurality of strain gauges are configured to provide an output voltage indicative of a sensed pressure using an input voltage. The passive compensation circuit that includes a span resistor (R S1 ), first and second compensation resistors (R C1 , R C2 ), and a zero offset resistor (R TZ1 ). The span resistor is connected between an input voltage and the pressure sensor and is configured to control a range of an output voltage for a pressure range of the pressure sensor. The first and second compensation resistors are operatively connected in parallel with the pressure sensor and are configured to control current provided to the pressure sensor. The zero offset resistor is operatively connected between the first and second compensation resistors and the pressure sensor and is configured to control a base value of the output voltage for zero pressure.
摘要翻译：传感器系统包括多个应变计（12）和无源补偿电路（30）。多个应变仪被配置为使用输入电压提供指示感测压力的输出电压。无源补偿电路包括一个跨阻（RS1），第一和第二补偿电阻（RC1，RC2）和一个零偏置电阻（RTZ1）。量程电阻器连接在输入电压和压力传感器之间，并且被配置为控制压力传感器的压力范围内的输出电压的范围。第一和第二补偿电阻器可操作地与压力传感器并联连接并且被配置为控制提供给压力传感器的电流。零偏移电阻器可操作地连接在第一和第二补偿电阻器和压力传感器之间，并被配置为控制零压力的输出电压的基值。

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