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公开(公告)号：US20150042304A1
公开(公告)日：2015-02-12
申请号：US14385587
申请日：2013-03-26
Applicant: KISTLER HOLDING AG
Inventor： David Cornu , Adrian Hofmann , Leo Amstutz , Roman Strebel , Claudio Cavalloni
IPC: G05F5/00
CPC classification number: G05F5/00 , G01D3/036 , G01D18/004 , G01G3/13 , G01G19/024 , G01L1/16 , H03F3/347 , H03F3/70
Abstract: An electronic circuit that changes a charge signal into a voltage signal within a sensor suitable for direct installation in a roadway can be connected to two single-core cables that need not be highly insulating yet can realize the required power supply of the electronics. The circuit includes an integrated impedance converter (IEPE) at the output to a two-core cable and a charge amplifier with an IC1 that has two inputs. A capacitor Cc is connected in series to the signal output of the sensor at one input of the IC1. A Zener diode D is arranged between the ground output of the sensor and the second input of the IC1 and can be supplied with power by a resistor R1 in conjunction with a power supply arranged on the output side in order to adapt the potential at the second input of the IC1.
Abstract translation: 将电荷信号改变成适于直接安装在道路中的传感器内的电压信号的电子电路可以连接到两个不需要高度绝缘的单芯电缆，而可实现电子设备所需的电源。 该电路包括在两芯电缆的输出端的集成阻抗转换器（IEPE）和具有两个输入的IC1的电荷放大器。 在IC1的一个输入处，电容器Cc与传感器的信号输出串联连接。 一个齐纳二极管D配置在传感器的接地输出端和IC1的第二个输入端之间，并且可以通过一个电阻器R1与布置在输出端的电源一起供电，以便调整第二个电位 输入IC1。
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2.发明授权Charge to voltage conversion circuit for WIM sensor and WIM sensor with same 有权为WIM传感器和WIM传感器充电至电压转换电路公开(公告)号：US09411357B2
公开(公告)日：2016-08-09
申请号：US14385587
申请日：2013-03-26
Applicant: KISTLER HOLDING AG
Inventor： David Cornu , Adrian Hofmann , Leo Amstutz , Roman Strebel , Claudio Cavalloni
CPC classification number: G05F5/00 , G01D3/036 , G01D18/004 , G01G3/13 , G01G19/024 , G01L1/16 , H03F3/347 , H03F3/70
Abstract: An electronic circuit that changes a charge signal into a voltage signal within a sensor suitable for direct installation in a roadway can be connected to two single-core cables that need not be highly insulating yet can realize the required power supply of the electronics. The circuit includes an integrated impedance converter (IEPE) at the output to a two-core cable and a charge amplifier with an IC1 that has two inputs. A capacitor Cc is connected in series to the signal output of the sensor at one input of the IC1. A Zener diode D is arranged between the ground output of the sensor and the second input of the IC1 and can be supplied with power by a resistor R1 in conjunction with a power supply arranged on the output side in order to adapt the potential at the second input of the IC1.
Abstract translation: 将电荷信号改变成适于直接安装在道路中的传感器内的电压信号的电子电路可以连接到两个不需要高度绝缘的单芯电缆，而可实现电子设备所需的电源。 该电路包括在两芯电缆的输出端的集成阻抗转换器（IEPE）和具有两个输入的IC1的电荷放大器。 在IC1的一个输入处，电容器Cc与传感器的信号输出串联连接。 一个齐纳二极管D配置在传感器的接地输出端和IC1的第二个输入端之间，并且可以通过一个电阻器R1与布置在输出端的电源一起供电，以便调整第二个电位 输入IC1。
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