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1. 发明专利

JP2011215067A Insulation diagnosis method, insulation diagnosis system, and rotating electric machine 审中-公开
标题翻译：绝缘诊断方法，绝缘诊断系统和旋转电机
公开(公告)号：JP2011215067A
公开(公告)日：2011-10-27
申请号：JP2010085119
申请日：2010-04-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OMATSU CHIE , OHATA KOJI , HAGIWARA SHUYA
IPC分类号： G01R31/12 , G01R31/34
CPC分类号： G01R31/1227 , G01R31/34
摘要： PROBLEM TO BE SOLVED: To identify the type of an insulation defect in a diagnosis target device.SOLUTION: A signal generated from a diagnosis target device is measured, and a frequency or a frequency band manifesting a maximum amplitude strength is detected from the measured signal (steps 0702, 0704, 0706). The insulation defect type in the diagnosis target device is identified based upon the detected frequency or frequency band manifesting the maximum amplitude strength.
摘要翻译：要解决的问题：确定诊断目标装置中的绝缘缺陷的类型。解决方案：测量从诊断目标装置产生的信号，并且从测量信号中检测出表现出最大幅度强度的频率或频带（步骤0702,0704,0706）。基于检测到的表现最大振幅强度的频率或频带来识别诊断对象装置中的绝缘缺陷类型。

2. 发明专利

JP2008128943A Nuclear magnetic resonance probe 有权
标题翻译：核磁共振探测器
公开(公告)号：JP2008128943A
公开(公告)日：2008-06-05
申请号：JP2006316904
申请日：2006-11-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUDA YUZO , HAGIWARA SHUYA , KAWASAKI KENJI
IPC分类号： G01R33/36 , G01R33/32 , G01R33/34
CPC分类号： G01R33/3621 , G01R33/34061 , G01R33/34092 , G01R33/3664
摘要： PROBLEM TO BE SOLVED: To provide a nuclear magnetic resonance probe reducing loss by high-frequency cable from a probe coil to a preamplifier and enhancing sensitivity of an NMR signal.
SOLUTION: A changing-over switch 1 for the NMR probe is divided into a switching section 20 including a switching device 14 and a filtering section 19 filtering the switch control signal and the RF transmitted signal. The switching section 20 is arranged within a probe body 21 inserted into a magnet of the probe. The filtering section 19 is arranged near a measuring device 4 exterior of the probe. The switching section 20 reduces the cross sectional structure of thickness and breadth corresponding to elongated shape of a probe body 21. Thus, the length from a probe coil to a preamplifier can be shortened substantially to reduce the loss.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供核磁共振探针，通过高频电缆从探针线圈到前置放大器减少损耗，并提高NMR信号的灵敏度。解决方案：用于NMR探针的转换开关1被分成包括开关装置14和滤波部分19的开关部分20，滤波部分19对开关控制信号和RF发射信号进行滤波。切换部20设置在插入探针的磁铁内的探针体21内。过滤部分19布置在探针外部的测量装置4附近。切换部分20减小了对应于探头主体21的细长形状的厚度和宽度的横截面结构。因此，可以大大缩短从探针线圈到前置放大器的长度，以减少损耗。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008122203A Nuclear magnetic resonance device and its operating method 有权
标题翻译：核磁共振装置及其操作方法
公开(公告)号：JP2008122203A
公开(公告)日：2008-05-29
申请号：JP2006305690
申请日：2006-11-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： PARK MINSEOK , HAGIWARA SHUYA , TANAKA HIDEKI
IPC分类号： G01R33/389
摘要： PROBLEM TO BE SOLVED: To reduce the interference between an experiment nucleus transmitting/receiving signal and a locking nucleus transmitting/receiving signal without lowering the sensitivity of an NMR device, and to alleviate requirements concerning the temperature stability of a sample.
SOLUTION: In the nuclear magnetic resonance device equipped with a magnet, a probe, an alternating current electric signal transmission system, a low-noise amplifier, one or more probe coils arranged in the probe, a tuning circuit connected to one of the probe coil(s), a transmission/reception switching circuit for connecting the tuning circuit and the alternating current electric signal transmission system and the low-noise amplifier, a detector connected to the low-noise amplifier, a locking coil arranged between the magnet and the probe, a locking power source for supplying current to the locking coil, and a locking controller for controlling the quantity of the current to be supplied by the locking power source, the low-noise amplifier and the tuning circuit and the transmission/reception switching circuit are made single, and a signal of a part frequency component of a signal detected from an atomic nucleus to be observed is input to the locking controller.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：降低实验核发射/接收信号与锁定核发射/接收信号之间的干扰，而不降低NMR装置的灵敏度，并且减轻对样品的温度稳定性的要求。解决方案：在配备有磁体，探针，交流电信号传输系统，低噪声放大器，布置在探头中的一个或多个探针线圈的核磁共振装置中，调谐电路连接到探针线圈，用于连接调谐电路和交流电信号传输系统和低噪声放大器的发送/接收切换电路，连接到低噪声放大器的检测器，布置在磁体之间的锁定线圈探针，用于向锁定线圈提供电流的锁定电源，以及用于控制由锁定电源，低噪声放大器和调谐电路以及发送/接收提供的电流量的锁定控制器将开关电路单一化，将从原子核检测的信号的部分频率成分的信号输入到锁定控制器。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006071307A Discharge protecting apparatus of nmr probe 有权
标题翻译：核磁共振探测器放电保护装置
公开(公告)号：JP2006071307A
公开(公告)日：2006-03-16
申请号：JP2004251683
申请日：2004-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGIWARA SHUYA , HABARA HIDETA
IPC分类号： G01R33/36 , G01R33/20
摘要： PROBLEM TO BE SOLVED: To prevent damage due to dielectric breakdown of an antenna of a probe for a NMR apparatus and acquire a maximum load allowable under operating environments.
SOLUTION: A predischarge electrode for discharging at an electrical load lower than that of the antenna is provided for the vicinity of the antenna. Discharge generated by the predischarge electrode is detected by a current detector. On the basis of the phase of its current and temporal changes, the presence or absence of discharge is detected. By suppressing electrical output when the generation of discharge is detected at the predischarge electrode, the breakage of the antenna due to discharge is prevented. Maximum output allowable under environmental conditions in which the probe is arranged is highly reliability acquired.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止由NMR装置的探针的天线的介质击穿造成的损坏，并获得在操作环境下允许的最大负载。解决方案：在天线附近设置用于以比天线低的电负载放电的预放电电极。由电流检测器检测由放电电极产生的放电。在其当前和时间变化的阶段的基础上，检测是否存在放电。通过在预放电电极处检测出放电的产生时抑制电输出，防止由放电引起的天线断裂。安置探头的环境条件下允许的最大输出可靠性得到。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2009216578A Low-temperature transmission/reception switching device and method of nmr low-temperature probe 有权
标题翻译：低温传输/接收切换装置和NMR低温探头方法
公开(公告)号：JP2009216578A
公开(公告)日：2009-09-24
申请号：JP2008061230
申请日：2008-03-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUDA YUZO , HAGIWARA SHUYA
IPC分类号： G01R33/36 , G01R33/32
摘要： PROBLEM TO BE SOLVED: To improve furthermore sensitivity of an NMR probe by reducing a leaking-in noise from a transmission terminal 11 of a low-temperature transmission/reception switcher 7, in a transmission/reception switching device of an NMR low-temperature probe equipped with a probe antenna 5 for detecting a nuclear magnetic resonance signal emitted from a sample by utilizing electromagnetic induction, the transmission/reception switcher 7 for switching connection of the antenna to a transmitter 34 or a receiver 36, and a cooling device 4 for cooling them. SOLUTION: During a reception time, a switch circuit 10-1 for connecting a cooled resistance 18 by the ON state acquired by forward direction bias of a PIN diode 19 instead of the transmitter 34 connected to a transmission port 11 during a transmission time is arranged. Similarly, a switch circuit 10-2 for short-circuiting the transmission port 11 which is an output terminal of a transmitter 36 by the ON state acquired by forward direction bias of a PIN diode 20 is arranged. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了通过降低低温发送/接收切换器7的发送端子11的泄漏噪声来提高NMR探针的灵敏度，在NMR低的发送/接收切换装置中温度探头，其配备有用于通过利用电磁感应来检测从样品发射的核磁共振信号的探针天线5，用于将天线切换到发射器34或接收器36的连接的发射/接收切换器7以及冷却装置 4冷却。解决方案：在接收时间期间，开关电路10-1用于将冷却电阻18连接到通过PIN二极管19的正向偏置获取的导通状态，而不是在传输期间连接到传输端口11的发射器34。时间安排。类似地，布置了用于通过PIN二极管20的正向偏置获取的ON状态使作为发送器36的输出端的发送端口11短路的开关电路10-2。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008039641A Nuclear magnetic resonance apparatus 审中-公开
标题翻译：核磁共振装置
公开(公告)号：JP2008039641A
公开(公告)日：2008-02-21
申请号：JP2006215909
申请日：2006-08-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ICHINOSE YUJI , PARK MINSEOK , HAGIWARA SHUYA
IPC分类号： G01R33/36
摘要： PROBLEM TO BE SOLVED: To solve the problems that a detector circuit becomes complicated and that spurious noise occurs by an AD convertor or the like when performing digital IQ detection in a measuring apparatus of an NMR apparatus.
SOLUTION: Using a sampling signal (frequency fs) of the AD convertor 14 synchronized with a transmission signal f0, an IF signal frequency is converted into fs×(1/4) by a down convertor 10. An IQ detector 15 is a detector circuit which multiplies by signals consisting of 1,0,-1 instead of an NCO. A random signal having a central frequency fs×(1/2) and a certain band width from a signal generator 13 is added to the IF signal, and is then A/D converted by the AD convertor 14, thereby reducing noise which is mainly attributable to the odd-order harmonics of the IF signal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决在NMR装置的测量装置中进行数字IQ检测时，检测器电路变得复杂并且由AD转换器等发生杂散噪声的问题。解决方案：使用与发送信号f0同步的AD转换器14的采样信号（频率fs），IF信号频率由下变频器10转换成fs×（1/4）。IQ检测器15是检测器电路，其乘以1,0,1代替NCO的信号。将具有中心频率fs×（1/2）和来自信号发生器13的一定带宽的随机信号加到IF信号上，然后由AD转换器14进行A / D转换，从而减少主要的噪声归因于IF信号的奇次谐波。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2004177136A Insulation diagnostic method and system for coil 审中-公开
公开(公告)号：JP2004177136A
公开(公告)日：2004-06-24
申请号：JP2002340234
申请日：2002-11-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGIWARA SHUYA , KAMIYA HIROYUKI
IPC分类号： G01N29/12 , G01N29/00
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnostic method and a deterioration diagnostic device for a coil insulation layer with high precision even under a measuring environment of a high peripheral noise.
SOLUTION: Response vibration is measured by an optical non-contact displacement gage, in this method of evaluating a level of deterioration of the coil insulation layer with mica fixed by a resin, by the response vibration to impact force. An impact force imparting mechanism and an optical non-contact displacement gage sensor part are stored in one casing to constitute an impact response characteristic measuring instrument. The present invention provides an insulation deterioration diagnosing system for a coil capable of collecting precise evaluation signals, capable of simplifying testing processes, capable of reducing dispersion, and capable of shortening an evaluation time.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2004037277A Method for diagnosing insulation of coil 审中-公开
公开(公告)号：JP2004037277A
公开(公告)日：2004-02-05
申请号：JP2002195351
申请日：2002-07-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGIWARA SHUYA , OHATA KOJI , TAKEUCHI RYOZO , KAMIYA HIROYUKI
IPC分类号： G01R31/06 , G01R31/12 , G01R31/34
摘要： PROBLEM TO BE SOLVED: To provide an insulation deterioration diagnostic index whose reliability is high, by adding a new viewpoint to an insulation deterioration diagnostic method for a high-voltage coil. SOLUTION: As a method for evaluating the deterioration of the insulating property of the composite insulator of the high-voltage coil in which mica is stuck with resin, data on all the charge quantities of discharges which exceed a predetermined threshold out of partial discharges which occur when a high voltage is applied, are collected and recorded. On the basis of these, the distribution of the numbers of discharges, the average value of charge quantities, and the total charge quantity of discharges per cycle with respect to the charge quantity of discharges are found and computed, and are used as indexes for deciding deterioration. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2011153840A Apparatus and method for diagnosis of electric equipment, and diagnostic device mounting body 有权
标题翻译：电气设备诊断和诊断装置安装体的装置和方法
公开(公告)号：JP2011153840A
公开(公告)日：2011-08-11
申请号：JP2010013992
申请日：2010-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGIWARA SHUYA , OHATA KOJI , KURAHARA YOSHIMI , OMATSU CHIE
IPC分类号： G01R31/12 , G01R31/34
CPC分类号： G01R31/14 , G01R31/1272
摘要： PROBLEM TO BE SOLVED: To always monitor partial discharge of a continuous operation electric device, and to always monitor even in the case of vehicle mounted equipment. SOLUTION: A diagnosis device includes: an analyzer that performs spectrum analysis on an output of a sensor disposed near the electric apparatus; a data table in which an output of a load detector for a motor and an output of the spectrum analyzer are stored; a first device that obtains a correlation coefficient from a plurality of data concerning the magnitudes of a spectrum relevant to a specific frequency, which is obtained by the spectrum analyzer, out of data stored in the data table, and a plurality of data of a load obtained at a measuring time of the plurality of data; and a second device that classifies the noted spectrum relevant to the specific frequency into a spectrum of an environmental electromagnetic wave or a spectrum of an electromagnetic wave due to partial discharge from the electric apparatus on the basis of the value of the correlation coefficient obtained by the first device. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：始终监视连续操作电气设备的局部放电，并且即使在车载设备的情况下也始终监视。解决方案：诊断装置包括：对设置在电气设备附近的传感器的输出执行频谱分析的分析器; 数据表，其中存储用于电动机的负载检测器的输出和频谱分析仪的输出; 第一装置，从存储在数据表中的数据中，从频谱分析器获得的关于与特定频率相关的频谱的幅度的多个数据中获取相关系数，以及多个负载数据在所述多个数据的测量时间获得; 以及第二装置，其将与所述特定频率相关的所述频谱分类为环境电磁波的频谱或由于从所述电气设备的部分放电而导致的电磁波的频谱，所述频谱基于由所述电气设备获得的相关系数的值第一个装置版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2006194761A Nmr measurement method and system 有权
标题翻译： NMR测量方法和系统
公开(公告)号：JP2006194761A
公开(公告)日：2006-07-27
申请号：JP2005007346
申请日：2005-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： PARK MINSEOK , HAGIWARA SHUYA , HABARA HIDETA
IPC分类号： G01R33/32 , G01N24/08 , G01R33/46
CPC分类号： G01R33/4633 , G01R33/4625
摘要： PROBLEM TO BE SOLVED: To improve the throughput of multi-dimensional NMR measurements, by reducing the number of times of scans necessary for multi-dimensional NMR measurement, without causing the problem of frequency discrimination due to deterioration and loop back of frequency resolution.
SOLUTION: The NMR measuring method for using an NMR device performing spectral analysis, by converting a receiving signal into data by using an analog/digital converter determines the number of times of the loop back from change of a peak frequency to perform frequency discrimination. More specifically, Nyquist frequency is changed to cause change of the peak frequency. Since the Nyquist frequency is in inverse proportion to the increment of a development time being multi-dimensional NMR characteristics, modification of the Nyquist frequency is achieved by changing the increment of the developing time. In addition, when modifying the Nyquist frequency, the ratio of different frequencies is larger than zero, is equal to or smaller than the number of times of the maximum loop back and is not a ratio of a natural number n1 and n2. This measurement method is provided by an NMR measurement control software that can be implemented with small burden on the user.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高多维NMR测量的吞吐量，通过减少多维NMR测量所需的扫描次数，而不会引起由于频率的恶化和环回引起的频率鉴别的问题解析度。解决方案：使用进行光谱分析的NMR装置的NMR测量方法，通过使用模拟/数字转换器将接收信号转换成数据确定从峰值频率的改变返回的次数以执行频率歧视。更具体地，奈奎斯特频率被改变以引起峰值频率的改变。由于奈奎斯特频率与多维NMR特征的显影时间的增量成反比，因此通过改变显影时间的增量来实现奈奎斯特频率的修正。此外，当修改奈奎斯特频率时，不同频率的比率大于零，等于或小于最大回路的次数，而不是自然数n1和n2的比率。该测量方法由能够以较小负担的用户实施的NMR测量控制软件提供。版权所有（C）2006，JPO＆NCIPI

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