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1. 发明申请

WO2009036989A1 PHYSICAL QUANTITY MEASURING UNIT AND SENSOR FOR NON-CONTACT ELECTRIC OR MAGNETIC FIELD MEASUREMENTS 审中-公开
标题翻译：物理量测量单元和非接触式电磁场测量传感器
公开(公告)号：WO2009036989A1
公开(公告)日：2009-03-26
申请号：PCT/EP2008/007900
申请日：2008-09-19
申请人： INPHYNIX , L'UNIVERSITE DE CAEN BASSE-NORMANDIE , ROBBES, Didier
发明人： ROBBES, Didier
IPC分类号： G01D3/00 , G01R33/02 , G01R29/12
CPC分类号： G01R29/12 , G01R33/093 , G01R33/096
摘要： The present invention relates to physical unit measuring unit comprising: a sensing means (3) comprising a first (23) and a second (21) transducer, wherein the first transducer is configured to provide a first output (27) and comprises a first balancing input (19) and the second transducer is configured to provide a second output (25) and comprises a second balancing input (17), an amplifier means (5) comprising a first (31) and a second (29) amplifier, wherein the first output of the sensing means is connected to the input of the first amplifier and the second output of the sensing means is connected to the input of the second amplifier, wherein furthermore the first and second amplifier are coupled by a gain setting means(33), a first feedback loop(9) connecting the output of the first amplifier with the balancing input of the second transducer and a second feedback loop connecting the output of the second amplifier with the balancing input of the first transducer. The invention furthermore relates to a probe and a sensor for measuring electric fields, more specifically to a probe that in combination with an electrometer allows measurement of an electric field with high sensitivity, large bandwidth and low frequencies without making electrical contact.
摘要翻译：本发明涉及物理单元测量单元，其包括：包括第一和第二（21）换能器的感测装置（3），其中所述第一换能器被配置为提供第一输出（27）并且包括第一平衡输入端（19）和第二传感器被配置成提供第二输出端（25）并包括第二平衡输入端（17），放大器装置（5），包括第一（31）和第二（29）放大器，其中，感测装置的第一输出连接到第一放大器的输入端，感测装置的第二输出端连接到第二放大器的输入端，此外，第一和第二放大器由增益设定装置耦合，连接第一放大器的输出与第二换能器的平衡输入的第一反馈回路（9）和将第二放大器的输出与第一换能器的平衡输入连接的第二反馈回路。本发明还涉及一种用于测量电场的探针和传感器，更具体地涉及一种与静电计结合使用的探头，可以测量高灵敏度，大带宽和低频率的电场而不进行电接触。

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