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公开(公告)号：US11009466B2
公开(公告)日：2021-05-18
申请号：US16596555
申请日：2019-10-08
发明人： Takayuki Nishi , Shinya Ohtsuka
摘要： A discharge detection system includes a plurality of optical fibers having different optical distances from each other and provided to allow discharge light generated from a test object to enter at least one of the optical fibers, an optical sensor configured to detect the discharge light having entered the at least one of the optical fibers and to output a detection signal having a temporal change in an amplitude of the detection signal, the temporal change in the amplitude corresponding to a temporal change in intensity of the discharge light, and a signal processing system configured to identify an area where the discharge light is generated based a point of time of at least one peak in the detection signal.
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公开(公告)号：US20150177279A1
公开(公告)日：2015-06-25
申请号：US14413529
申请日：2013-08-15
IPC分类号： G01R13/00
CPC分类号： G01R13/00 , G01R31/1272 , H01H33/26 , H01H33/53
摘要： An electromagnetic wave identification device includes a detection section for detecting an electromagnetic wave signal which is output from an antenna for detecting electromagnetic waves and whose level is equal to or greater than a predetermined level; a measurement and record section for recording and storing the detected electromagnetic wave waveform data; and an analysis and evaluation section for receiving the recorded and stored electromagnetic wave waveform data, normalizing the electromagnetic wave waveform data by an maximum amplitude value to obtain normalized data, and determining whether or not the received electromagnetic wave is a direct wave by reference to the normalized data. The analysis and evaluation section determines whether or not the received electromagnetic wave is a direct wave by obtaining a kurtosis from a histogram of amplitude values of the normalized data and determining whether or not the kurtosis is equal to or greater than a predetermined threshold, or by obtaining a normal probability plot from the normalized data and determining whether a value of the normalized data at a predetermined probability is equal to or greater than, or equal to or less than, a predetermined threshold.
摘要翻译： 一种电磁波识别装置，包括：检测部，其检测从用于检测电磁波的天线输出并且其电平等于或大于预定电平的电磁波信号; 用于记录和存储检测到的电磁波波形数据的测量和记录部分; 以及分析和评估部分，用于接收记录和存储的电磁波波形数据，将电磁波波形数据归一化最大幅度值以获得归一化数据，并且通过参考该方法确定接收到的电磁波是否是直接波 归一化数据。 分析和评估部分通过从归一化数据的幅度值的直方图获得峰度并确定峰度是否等于或大于预定阈值来确定接收到的电磁波是否是直接波，或者通过 从所述归一化数据获得正常概率图，并且确定所述规定数据的预定概率的值是否等于或大于或等于或小于预定阈值。
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公开(公告)号：US09977069B2
公开(公告)日：2018-05-22
申请号：US14760835
申请日：2013-12-12
发明人： Shinya Ohtsuka , Yuki Yamaguchi , Hiroyuki Tsubata
CPC分类号： G01R31/1218 , G01R31/008 , G01R31/025
摘要： In a non-contact discharge test performed in a poor electromagnetic noise environment, the energy of discharge is evaluated by detecting weak light emission and processing the intensity waveform of light emission of the discharge. A database is created by measuring the intensity waveform of light emission of discharge generated as a result of application of a voltage or current to a measurement object through use of a light emission measuring device, simultaneously measuring the current waveform of the discharge through use of a current measuring device, and storing in the database the relation between analysis data sets obtained through analysis of the waveforms on the basis of information of the voltage or current applied to the measurement object. The intensity waveform of the light emission of the discharge or spark generated from the measurement object is measured while an electromagnetic wave generated as a result of the discharge of the measurement object is used as a reference. The magnitude of the discharge is estimated as a value by comparing light emission data obtained through analysis of the intensity waveform with the data recorded in the database.
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4.发明授权Non-contact discharge evaluation method and non-contact discharge evaluation apparatus 有权非接触放电评估方法和非接触放电评估装置公开(公告)号：US09442154B2
公开(公告)日：2016-09-13
申请号：US14374424
申请日：2012-11-29
发明人： Shinya Ohtsuka , Masaaki Furukawa , Yuki Yamaguchi
CPC分类号： G01R31/1218 , G01N21/67 , G01N2201/08 , H01T13/60
摘要： The magnitude (charge quantity) and energy of discharge are obtained by optical measurement based on light emission, and are evaluated. A discharge source is caused to emit discharge light by applying a voltage to the discharge source from a known power supply, the intensity waveform of the discharge light emission is measured using a light receiving element, the waveform of discharge current is simultaneously measured using a current conversion probe or a current waveform detector, and a database is created in which a relation with analysis data sets obtained by analyzing the waveforms is recorded in consideration of applied power information. The intensity waveform of discharge light emission from a piece of equipment under measurement is measured using the light receiving element, and light emission data obtained by analyzing the waveform is compared with the data recorded in the database so as to estimate the magnitude of discharge as a value.
摘要翻译： 通过基于光发射的光学测量获得放电的幅度（电荷量）和能量，并进行评估。 通过从已知电源向放电源施加电压使放电源发射放电光，利用光接收元件测量放电发光的强度波形，利用电流同时测量放电电流的波形 转换探针或电流波形检测器，并且创建数据库，其中考虑到所施加的功率信息来记录与通过分析波形获得的分析数据集的关系。 使用光接收元件测量来自被测设备的放电光发射的强度波形，并将通过分析波形获得的发光数据与记录在数据库中的数据进行比较，以便将放电的大小估计为 值。
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5.发明申请NON-CONTACT DISCHARGE EVALUATION METHOD AND NON-CONTACT DISCHARGE EVALUATION APPARATUS 有权非接触放电评估方法和非接触放电评估装置公开(公告)号：US20140361789A1
公开(公告)日：2014-12-11
申请号：US14374424
申请日：2012-11-29
发明人： Shinya Ohtsuka , Masaaki Furukawa , Yuki Yamaguchi
CPC分类号： G01R31/1218 , G01N21/67 , G01N2201/08 , H01T13/60
摘要： The magnitude (charge quantity) and energy of discharge are obtained by optical measurement based on light emission, and are evaluated. A discharge source is caused to emit discharge light by applying a voltage to the discharge source from a known power supply, the intensity waveform of the discharge light emission is measured using a light receiving element, the waveform of discharge current is simultaneously measured using a current conversion probe or a current waveform detector, and a database is created in which a relation with analysis data sets obtained by analyzing the waveforms is recorded in consideration of applied power information. The intensity waveform of discharge light emission from a piece of equipment under measurement is measured using the light receiving element, and light emission data obtained by analyzing the waveform is compared with the data recorded in the database so as to estimate the magnitude of discharge as a value.
摘要翻译： 通过基于光发射的光学测量获得放电的幅度（电荷量）和能量，并进行评估。 通过从已知电源向放电源施加电压使放电源发射放电光，利用光接收元件测量放电发光的强度波形，利用电流同时测量放电电流的波形 转换探针或电流波形检测器，并且创建数据库，其中考虑到所施加的功率信息来记录与通过分析波形获得的分析数据集的关系。 使用光接收元件测量来自被测设备的放电光发射的强度波形，并将通过分析波形获得的发光数据与记录在数据库中的数据进行比较，以便将放电的大小估计为 值。
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公开(公告)号：US10012688B2
公开(公告)日：2018-07-03
申请号：US14786315
申请日：2013-12-05
发明人： Shinya Ohtsuka , Kotaro Tsuboi , Sho Iwai
CPC分类号： G01R31/1218 , G01R31/001 , G01R31/08 , G01R31/1263
摘要： The present invention evaluates the status of discharge or dielectric breakdown having occurred as a result of application of an impulse voltage or current to a test sample by an electrostatic discharge tester. An electromagnetic wave antenna measures a radiation electromagnetic wave signal generated from the electrostatic discharge tester when the electrostatic discharge tester is driven and a radiation electromagnetic wave signal generated from the test sample when discharge or dielectric breakdown occurs. An evaluation section main body obtains and displays a dielectric breakdown occurrence timing TFO after application of the voltage and a dielectric breakdown voltage VFO. The dielectric breakdown occurrence timing TFO is obtained from the time difference between an applied voltage generation time obtained from the radiation electromagnetic wave signal generated when the electrostatic discharge tester was driven and a discharge generation time obtained from the radiation electromagnetic wave signal generated when dielectric breakdown occurred.
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公开(公告)号：US10996103B2
公开(公告)日：2021-05-04
申请号：US15449730
申请日：2017-03-03
发明人： Takayuki Nishi , Shinya Ohtsuka
摘要： According to one implementation, an optical observation system includes an optical fiber and at least one detection system. The optical fiber has at least one curved portion as a sensor for inputting light which has occurred in a test region. The optical fiber inputs the light from the at least one curved portion and transmits the light. The at least one detection system detects the light transmitted by the optical fiber. Further, according to one implementation, an optical observation method includes: inputting light, which has occurred in a test region, from at least one curved portion of an optical fiber and transmitting the light; and detecting the light transmitted by the optical fiber.
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公开(公告)号：US10545051B2
公开(公告)日：2020-01-28
申请号：US15246284
申请日：2016-08-24
发明人： Takayuki Nishi , Shinya Ohtsuka
摘要： According to one implementation, an explosive spark estimation system includes an explosive spark estimation system includes a measuring system and a processing system. The measuring system is adapted to measure intensity of light, included in a spark occurred from an object to be tested. The light is within at least one specific wavelength band. The processing system is adapted to determine whether the spark is explosiveness based on the intensity of the light. Further, according to one implementation, an explosive spark estimation method includes: measuring intensity of light, included in a spark occurred from an object to be tested, within at least one specific wavelength band; and determining whether the spark is explosive, based on the intensity of the light.
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公开(公告)号：US09841439B2
公开(公告)日：2017-12-12
申请号：US14413529
申请日：2013-08-15
CPC分类号： G01R13/00 , G01R31/1272 , H01H33/26 , H01H33/53
摘要： An electromagnetic wave identification device includes a detection section for detecting an electromagnetic wave signal which is output from an antenna for detecting electromagnetic waves and whose level is equal to or greater than a predetermined level; a measurement and record section for recording and storing the detected electromagnetic wave waveform data; and an analysis and evaluation section for receiving the recorded and stored electromagnetic wave waveform data, normalizing the electromagnetic wave waveform data by an maximum amplitude value to obtain normalized data, and determining whether or not the received electromagnetic wave is a direct wave by reference to the normalized data. The analysis and evaluation section determines whether or not the received electromagnetic wave is a direct wave by obtaining a kurtosis from a histogram of amplitude values of the normalized data and determining whether or not the kurtosis is equal to or greater than a predetermined threshold, or by obtaining a normal probability plot from the normalized data and determining whether a value of the normalized data at a predetermined probability is equal to or greater than, or equal to or less than, a predetermined threshold.
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