-
公开(公告)号：US6124706A
公开(公告)日：2000-09-26
申请号：US870512
申请日：1997-06-06
CPC分类号： G01R15/242 , G01R1/071
摘要： A miniature electro-optic voltage sensor system capable of accurate operation at high voltages without use of the dedicated voltage dividing hardware. The invention achieves voltage measurement without significant error contributions from neighboring conductors or environmental perturbations. The invention employs a transmitter, a sensor, a detector, and a signal processor. The transmitter produces a beam of electromagnetic radiation which is routed into the sensor. Within the sensor the beam undergoes the Pockels electro-optic effect. The electro-optic effect produces a modulation of the beam's polarization, which is in turn converted to a pair of independent conversely-amplitude-modulated signals, from which the voltage of the E-field is determined by the signal processor. The use of converse AM signals enables the signal processor to better distinguish signal from noise.The sensor converts the beam by splitting the beam in accordance with the axes of the beam's polarization state (an ellipse) into at least two AM signals. These AM signals are fed into a signal processor and processed to determine the voltage between a ground conductor and the conductor on which voltage is being measured.
摘要翻译： 一种微型电光电压传感器系统，能够在不使用专用分压硬件的情况下在高电压下进行精确的运行。 本发明实现了电压测量，而没有来自相邻导体或环境扰动的显着误差贡献。 本发明采用发射器，传感器，检测器和信号处理器。 发射器产生电磁辐射束，其被传送到传感器中。 在传感器内，光束经受Pockels电光效应。 电光效应产生光束偏振的调制，其进而被转换成一对独立的相反幅度调制的信号，由该信号处理器确定电场的电压。 使用相反的AM信号使信号处理器更好地区分信号和噪声。 传感器通过将光束的偏振状态（椭圆）的轴分成至少两个AM信号而将光束分割成光束。 这些AM信号被馈送到信号处理器中并被处理以确定接地导体和正在测量电压的导体之间的电压。
-
公开(公告)号：US06492800B1
公开(公告)日：2002-12-10
申请号：US09667116
申请日：2000-09-20
IPC分类号： G01R3100
CPC分类号： G01R15/242 , G01R1/071
摘要： The invention is a miniature electro-optic voltage sensor system capable of accurate operation at high voltages without use of the dedicated voltage dividing hardware typically found in the prior art. The invention achieves voltage measurement without significant error contributions from neighboring conductors or environmental perturbations. The invention employs a transmitter, a sensor, a detector, and a signal processor. The transmitter produces a beam of electromagnetic radiation which is routed into the sensor. Within the sensor the beam undergoes the Pockels electro-optic effect. The electro-optic effect produces a modulation of the beam's polarization, which is in turn converted to a pair of independent conversely-amplitude-modulated signals, from which the voltage of the E-field is determined by the signal processor. The use of converse AM signals enables the signal processor to better distinguish signal from noise. The sensor converts the beam by splitting the beam in accordance with the axes of the beam's polarization state (an ellipse) into at least two AM signals. These AM signals are fed into a signal processor and processed to determine the voltage between a ground conductor and the conductor on which voltage is being measured.
摘要翻译： 本发明是一种微型电光电压传感器系统，能够在不使用现有技术中典型的专用分压硬件的情况下在高电压下进行精确的操作。 本发明实现了电压测量，而没有来自相邻导体或环境扰动的显着误差贡献。 本发明采用发射器，传感器，检测器和信号处理器。 发射器产生电磁辐射束，其被传送到传感器中。 在传感器内，光束经受Pockels电光效应。 电光效应产生光束偏振的调制，其进而被转换成一对独立的相反幅度调制的信号，由该信号处理器确定电场的电压。 使用相反的AM信号使得信号处理器能够更好地区分信号和噪声。传感器通过将光束的偏振状态（椭圆）的轴分成至少两个AM信号来将光束分割成光束。 这些AM信号被馈送到信号处理器中并被处理以确定接地导体和正在测量电压的导体之间的电压。
-
公开(公告)号：US5892357A
公开(公告)日：1999-04-06
申请号：US569338
申请日：1995-12-08
申请人： Gregory K. Woods , Todd W. Renak
发明人： Gregory K. Woods , Todd W. Renak
CPC分类号： G01R15/242 , G01R1/071
摘要： A miniature electro-optic voltage sensor system capable of accurate operation at high voltages. The system employs a transmitter, a sensor disposed adjacent to but out of direct electrical contact with a conductor on which the voltage is to be measured, a detector, and a signal processor. The transmitter produces a beam of electromagnetic radiation which is routed into the sensor where the beam undergoes the Pockels electro-optic effect. The electro-optic effect causes phase shifting in the beam, which is in turn converted to a pair of independent beams, from which the voltage of a system based on its E-field is determined when the two beams are normalized by the signal processor. The sensor converts the beam by splitting the beam in accordance with the axes of the beam's polarization state (an ellipse whose ellipticity varies between -1 and +1 in proportion to voltage) into at least two AM signals. These AM signals are fed into a signal processor and processed to determine the voltage between a ground conductor and the conductor on which voltage is being measured.
摘要翻译： 一种能够在高电压下精确运行的微型电光电压传感器系统。 该系统采用发射器，传感器设置在与要测量电压的导体相邻但不与其直接电接触，检测器和信号处理器。 发射器产生一束电磁辐射，其被传送到传感器中，其中光束经受Pockels电光效应。 电光效应导致光束中的相移，其又转换成一对独立光束，当两个光束被信号处理器归一化时，基于其E场的系统的电压被确定。 该传感器根据光束的偏振状态的轴（其椭圆率在-1和+1与成比例的电压变化的椭圆）的轴分裂成至少两个AM信号，来将光束转换成光束。 这些AM信号被馈送到信号处理器中并被处理以确定接地导体和正在测量电压的导体之间的电压。
-
-
搜索结果
3 条记录 (耗时 0.021 秒)
