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1. 发明专利

JPS56154659A TIME DETECTION DEVICE 失效
公开(公告)号：JPS56154659A
公开(公告)日：1981-11-30
申请号：JP5782980
申请日：1980-05-02
申请人： TOKYO ELECTRIC POWER CO , CHUGOKU ELECTRIC POWER , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , SUZUKI MITSUO , IDEUMI SHIGERU , TANISAKA SATOSHI , MICHIGUCHI YOSHIHIRO , YAMADA KIMIO
IPC分类号： G01D1/18 , G01N29/14 , G01R19/165
摘要： PURPOSE:To detect time pickoff by taking out an envelope of the detection signals to treat it with an electronic computer and such. CONSTITUTION:The detected acoustic signals AE is transmuted into the envelope signals 6a in an envelope circuit 6 to be sample-held by being put in the sample holding circuit 1 to be A-D transmuted by A-D converter 2 to be taken in by the computer. The computer 10 is composed of the memory 3 and CPU4 and the processing results are put out to the printer 5. The processing of the envelope signals 6a inside the computer 10 is indicated by Fig.2. In addition to the memory 3 two registers REG1 and REG2 are used. However the address shall be A, the permissible tilt value shall be alpha and the riser permissible value shall be DELTA.

2. 发明专利

JPS5642114A DETECTION METHOD FOR LOOSE PARTS 失效
公开(公告)号：JPS5642114A
公开(公告)日：1981-04-20
申请号：JP11830679
申请日：1979-09-14
申请人： TOKYO ELECTRIC POWER CO , CHUGOKU ELECTRIC POWER , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KOBAYASHI IZUMI , SUZUKI MITSUO , YAMADA KIMIO , IDEUMI SHIGERU , MICHIGUCHI YOSHIHIRO
IPC分类号： G01H17/00 , G01N29/14 , G01S5/22 , G01S5/30 , G21C17/00 , G21C17/04
摘要： PURPOSE:To locate the loose parts accurately by a method wherein the relative crest value and the relative time gap are determined for each detector from the detection signals obtained at plural detectors, and the two kinds of measurements thus determined are combined so as to locate the loose parts. CONSTITUTION:The signal from each detector is fed into a time gap measuring device 5 and a relative crest value measuring device 6. The time gap measuring device 5 determines the time at which each detector detects the signal, utilizing as a reference the time at which the first-arriving detection signal was detected by the detector. The relative crest value measuring device 6 determins the relative crest value of the peak appearing in the detection signal obtained at each detector, taking as the maximum crest value the largest one of the peaks in the detection signals obtained at the detectors. A display unit 7 display the distribution pattern for each detector on a coordinate system of the relative crest value and the time gap, utilizing the relative values and the time gaps obtained for each detector. Based on the displayed results, the operator recognizes the locations of the loose parts.

3. 发明专利

JPS59164920A Determination of sound source in pressure container 失效
标题翻译：压力容器中声源的测定
公开(公告)号：JPS59164920A
公开(公告)日：1984-09-18
申请号：JP3928083
申请日：1983-03-11
申请人： Chubu Electric Power Co Inc , Chugoku Electric Power Co Ltd:The , Hitachi Ltd , Tokyo Electric Power Co Inc:The
发明人： SEGAWA MUNEMICHI , HAMADA KENJIROU , ITOU TAKAHIKO , IDEUMI SHIGERU , SENOO MAKOTO , MICHIGUCHI YOSHIHIRO , YAMADA KIMIO
IPC分类号： G01H3/00 , G01H1/00 , G01H17/00 , G21C17/00 , G21C17/04
CPC分类号： G01H1/00
摘要： PURPOSE:To enable the determination of a sound source with high accuracy, by performing the comparative collation of data relating to an unknown sound source and data relating to a known sound source. CONSTITUTION:The detection signals of the detectors S1-SN attached to a pressure container 1 are inputted to the pressure container sound position determination apparatus 100. The calculator 110 in the apparatus 100 analyzes the input signals to operate the difference of signal arrival times and a peak value. In this case, the peak value of the output signal of the i-th detector Si corresponding to the known sound source position Ak in the pressure container 1 and a signal arrival time difference JAKi are recorded to a memory apparatus 120. On the other hand, the calculator 110 operates the arrival time difference of the signals from an unknown sound source B and a peak value and perform the predetermined operation on the basis of the reference pattern data in the memory apparatus 120 to calculate the pattern distance between the sound source B and each known sound source Ak.
摘要翻译：目的：通过对与未知声源有关的数据和与已知声源有关的数据进行比较整理，能够高精度地确定声源。构成：安装在压力容器1上的检测器S1-SN的检测信号被输入到压力容器声音位置判定装置100.装置100中的计算器110分析输入信号，以操作信号到达时间的差异和峰值。在这种情况下，与压力容器1中的已知声源位置Ak对应的第i检测器Si的输出信号的峰值和信号到达时间差JAKi被记录到存储装置120中。另一方面，计算器110操作来自未知声源B和峰值的信号的到达时间差，并且基于存储装置120中的参考图案数据执行预定操作，以计算声源B 和每个已知的音源Ak。

4. 发明专利

JPS57114847A DETECTING APPARATUS FOR FOREIGN MATTER 失效
公开(公告)号：JPS57114847A
公开(公告)日：1982-07-16
申请号：JP42381
申请日：1981-01-07
申请人： CHUGOKU ELECTRIC POWER , TOKYO ELECTRIC POWER CO , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , ITOU TAKAHIKO , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU , YAMADA KIMIO
IPC分类号： G01N29/14 , G01N29/04
摘要： PURPOSE: To detect the lowering of function of a foreign matter detecting apparatus, by producing a shock sound forcibly on a housing of a nuclear reactor pressure receptacle or a vapor generator by a shock giving instrument and comparing this shock sound with the characteristic of preliminarily memorized shock sound. CONSTITUTION:Shock sounds are produced by operating shock giving instruments 81-8n and these shock sounds are detected by sound detectors 31-3n. The detected waveform is analyzed by a characteristic extractor 9 provided with a microcomputer and the analyzed results are compared with the comparison data of shock given on the same place and then, whether there is a difference more than the set value or not is examined. If anything unusual occurs in a course from the sensor 3 to a filter 5, the detected signal of an abnormal detection system is varied to a low crest value. Also, the variation of the same tendency appears on the whole detected signal if there is anything unusual about the instruments 81-8n.

5. 发明专利

JPS57114846A DETECTING APPARATUS FOR ABNORMAL SOUND 失效
公开(公告)号：JPS57114846A
公开(公告)日：1982-07-16
申请号：JP42281
申请日：1981-01-07
申请人： CHUGOKU ELECTRIC POWER , TOKYO ELECTRIC POWER CO , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , ITOU TAKAHIKO , IDEUMI SHIGERU , MICHIGUCHI YOSHIHIRO , YAMADA KIMIO , TANISAKA SATOSHI
IPC分类号： G01N29/14 , G01N29/04 , G01N29/07 , G01N29/11 , G01N29/12 , G01N29/32 , G01N29/44
摘要： PURPOSE:To remove an electric noise and to detect only an abnormal sound, by utilizing the time difference between signals of the abnormal sound arriving at the plural sound detectors provided to a monitoring object. CONSTITUTION:Each outout signal Si(i=1,2-n) amplified by n detectors which are provided to a monitoring object, is inputted to a comparator 11i and a signal (ai) is outputted when it exceeds a set level. A signal (d) is outputted through an OR circuit if one of n pieces of the signal (ai) exists. At this time, an AND-1 gate masking the output during the maximum supposable time tau' of time difference detected by each detector by a sound produced from one sound source, is provided and the approached detection signal (ai) is prevented from being converted into a pulse signal. An alarm signal (g) is outputted when a signal (d) is given within the sum of the time tau' and a time tau of an electric noise detected simultaneously by each detector from the time given the signal (d).

6. 发明专利

JPS5764127A Loose parts monitor 失效
标题翻译：松动部件监视器
公开(公告)号：JPS5764127A
公开(公告)日：1982-04-19
申请号：JP13986180
申请日：1980-10-08
申请人： Chubu Electric Power Co Inc , Chugoku Electric Power Co Ltd:The , Hitachi Ltd , Tokyo Electric Power Co Inc:The
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , SUZUKI MITSUO , YAMADA KIMIO , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU
IPC分类号： G01H17/00 , G01H1/00 , G01N29/14 , G21C17/04
CPC分类号： G01H1/00
摘要： PURPOSE:To make electric noise and impact sound adequately discriminatable by removing electric noise by utilizing the difference in time width between the signals by the electric noise and the impact sound. CONSTITUTION:An input signal 4 is applied via a comparator 6 to a pulse generator 7 after full wave rectification 5. The pulses generated at the rise and fall of input pulses are inputted to a monostable multivibrator (multi) 8, and the output from the multi 8 is applied to generators 9, 10. The pulse at the rise from the generator 9 is delayed 13 by the pulse time width of the multi 8 and is used as a start pulse for a clock device 11. The pulse at the fall from the generator 10 is used as a stop pulse for the device 11. The output of the device 11 is supplied to a decision circuit 12, by which it is compared with a set count value and when it is larger than said value, it is decided as an impact signal.
摘要翻译：目的：通过利用电噪声和冲击声之间的信号之间的时间宽度差来消除电噪声，使电噪声和冲击声充分地区分开来。构成：在全波整流5之后，通过比较器6将输入信号4施加到脉冲发生器7.在输入脉冲的上升和下降时产生的脉冲被输入到单稳态多谐振荡器（多）8，多发8被施加到发生器9,10上。来自发生器9的上升的脉冲被延迟13乘以多8的脉冲时间宽度，并被用作时钟装置11的起始脉冲。发生器10用作装置11的停止脉冲。装置11的输出被提供给判定电路12，通过该判定电路与设定的计数值进行比较，并且当其大于所述值时，确定作为影响信号。

7. 发明专利

JPS5764126A Oscillation detecting apparatus 失效
标题翻译：振动检测装置
公开(公告)号：JPS5764126A
公开(公告)日：1982-04-19
申请号：JP13986080
申请日：1980-10-08
申请人： Chubu Electric Power Co Inc , Chugoku Electric Power Co Ltd:The , Hitachi Ltd , Tokyo Electric Power Co Inc:The
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , SUZUKI MITSUO , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU , YAMADA KIMIO
IPC分类号： G01H17/00 , G01H1/06 , G01N29/14 , G21C17/00
CPC分类号： G01H1/06
摘要： PURPOSE:To surely detect oscillations even when noise is large, by obtaining average frequencies of a sound detecting signal at an in-furance structure, etc., and detecting oscillations from the average frequencies. CONSTITUTION:A sound detector 1 detects a sound signal, generated by mutual friction or collision due to the oscillation of an in-furnace structure, and also a noise signal. These detected signals are supplied to an operator 7 through a BPF6 after they are amplified 5, and an average frequency of the sound signals is obtained, then ,the output is analized in frequency. Consequently, a peak valve of the sound signal generated by oscillation of the structure is clearly distinguished in the variation of an average frequency of the noise. When the size and location of the peak valve are compared with a set value, abnormal oscillation of in-furnace structure can be detected.
摘要翻译：目的：即使在噪声较大的情况下，也可以通过在失效结构等获得声音检测信号的平均频率，并且从平均频率检测振荡来确定地检测振荡。构成：声音检测器1检测由于炉内结构的振荡引起的相互摩擦或碰撞产生的声音信号以及噪声信号。这些检测信号经过放大后的BPF6被提供给操作者7，获得声音信号的平均频率，然后对频率进行分析。因此，噪声的平均频率的变化明显地区分了由结构振荡产生的声音信号的峰值瓣。当将峰值阀的尺寸和位置与设定值进行比较时，可以检测炉内结构的异常振荡。

8. 发明专利

JPS56154628A DEVICE FOR DETECTING AND PROCESSING VIBRATION AND LOOSE PART 失效
公开(公告)号：JPS56154628A
公开(公告)日：1981-11-30
申请号：JP5782780
申请日：1980-05-02
申请人： TOKYO ELECTRIC POWER CO , CHUGOKU ELECTRIC POWER , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , SUZUKI MITSUO , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU , YAMADA KIMIO
IPC分类号： G01H17/00 , G01H3/12 , G01M99/00 , G21C17/04
摘要： PURPOSE:To enable the total capacity of wave memory to be decreased, by using an envelope detecting means which follows the rising period of a detected signal and has a smooth time constant at falling period and obtaining the wave-form whose peak position and peak value are the same as those of the detected signal. CONSTITUTION:Instead of a detector wherein an integrater is used, is employed the envelope detecting means which has a small time constant at the rising period of the signal and has the large time constant at the falling period. For example, a diode 51 is connected in series, a capacitor 52 and a resistor 53 are connected in parallel, and a four terminal circuit is constituted. Since the capacitor 52 is rapidly charged through the diode 51 at the rising period of the signal, the output wave-form follows the rising of the signal. At the falling period, the amplitude decreases in response to the time constant determined by the CR. Therefore, the envelope wave-form whose peak position and peak value are not different from those of the detected impact signal is obtained. Thus, sampling in the wave memory can be delayed, and the capacity can be decreased.

9. 发明专利

JPS56154630A DETECTING METHOD OF ABNORMAL VIBRATION 失效
公开(公告)号：JPS56154630A
公开(公告)日：1981-11-30
申请号：JP5782880
申请日：1980-05-02
申请人： TOKYO ELECTRIC POWER CO , CHUGOKU ELECTRIC POWER , CHUBU ELECTRIC POWER , HITACHI LTD
发明人： HASHIMOTO YUUJI , KAWAI KATSUMI , SUZUKI MITSUO , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU
IPC分类号： G01H3/00 , G01H1/00 , G01H3/10 , G01H3/14 , G01H17/00 , G21C17/00
摘要： PURPOSE:To detect the abnormal vibration without fail even though noises are large, by dividing the signal obtained from a sound detector into a vibration signal and a sound signal, and obtaining a mutual correlation. CONSTITUTION:An internal instrumentation tube 6 of a reactor is protruded from the bottom of a pressure container of a nuclear reactor. An acceleration sensor 7 is mounted on said internal instrumentation tube 6 for the reactor. The sensed signal from the acceleration sensor 7 is amplified by a charge amplifier 8, and guided to bandpass filters 9 and 10. The output of the filter 10 (500Hz-10kHz) is detected by a detector 11 and the result is fed to a bandpass filter 12 (0.07Hz-40Hz). The correlation analysis between the outputs of 9 and 12 is performed in an analyzer 13, and the result is observed on a display 14. Thus, the presence or absence of the abnormal vibration is determined.

10. 发明专利

DE3585204D1 未知
公开(公告)号：DE3585204D1
公开(公告)日：1992-02-27
申请号：DE3585204
申请日：1985-10-29
申请人： HITACHI LTD
发明人： MICHIGUCHI YOSHIHIRO , HIRAMOTO KAZUO , NISHI MASATSUGU , TAKAHASHI FUMINOBU
IPC分类号： G01S13/88 , G01S7/28 , G01S13/36 , G01S13/90 , G01S15/36 , G01V3/12 , G01S7/52

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