专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6156968A Peak pulse height detector 失效
标题翻译：峰值高度检测器
公开(公告)号：JPS6156968A
公开(公告)日：1986-03-22
申请号：JP17832684
申请日：1984-08-29
申请人： Hitachi Ltd
发明人： MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU
IPC分类号： G01N29/44 , G01N29/14
CPC分类号： G01N29/4454 , G01N29/14 , G01N2291/2695
摘要： PURPOSE:To enable accurate calculation of peak pulse height regardless of saturation when impinging sounds of foreign matters in a nuclear reactor vessel is amplified, by detecting that the amplifier output of an acoustic signal reaches the amplifier saturation level. CONSTITUTION:In the detection of foreign matters generated in a nuclear reactor, impinging sounds of foreign matters in the vessel is detected with a sensor 1 to send a signal to an amplifier 2. The output of the amplifier 2 which has a characteristic of attenuating in an exponential function is converted into a pulse with a comparator 4 after rectified with a rectifier circuit 3 and then, the waveform thereof is memorized temporarily into a memory 5. Then, a microcomputer 6 searches the largest width of pulses with respect to the waveforms memorized in the memory 5 to represent the largest pulse width detected by tau. Then, the time length T is determined to the final pulse from the pulse with the largest pulse width and the peak pulse height A is computed by the formula, wherein Vs is a known value indicating the saturation level of the amplifier 2 and alpha is an attenuation constant, which is predetermined. The peak pulse height A thus obtained is shown on a display 7.
摘要翻译：目的：通过检测声信号的放大器输出达到放大器饱和电平，能够在核反应堆容器中撞击异物的声音时放大峰值脉冲高度，而不考虑饱和度的准确计算。构成：在检测核反应堆中产生的异物时，用传感器1检测到在船内产生异物的声音，向放大器2发送信号。放大器2的输出具有衰减特性在用整流电路3整流后，将指数函数转换为具有比较器4的脉冲，然后将其波形临时存储到存储器5中。然后，微计算机6相对于存储的波形搜索最大的脉冲宽度在存储器5中表示由tau检测到的最大脉冲宽度。然后，从具有最大脉冲宽度的脉冲确定时间长度T，并且通过公式计算峰值脉冲高度A，其中Vs是表示放大器2的饱和电平的已知值，α是衰减常数，这是预定的。由此得到的峰值脉冲高度A示于显示器7上。

2. 发明专利

JPS60146166A LOCATION OF SOUND SOURCE POSITION 失效
公开(公告)号：JPS60146166A
公开(公告)日：1985-08-01
申请号：JP198784
申请日：1984-01-11
申请人： HITACHI LTD
发明人： IDEUMI SHIGERU , MICHIGUCHI YOSHIHIRO , SENOO MAKOTO
IPC分类号： G01S5/18 , G01S5/22 , G01S5/30 , G21C17/04
摘要： PURPOSE:To minimize errors by using sound data at a reference point effectively when pattern distances between un unknown sound source and a reference sound source are converted into the distance between the sound sources. CONSTITUTION:Sound detectors S1, S2...Si are mounted at appropriate points on a pressure container 1 to record output signal waveforms thereof on a wave form recorder 2 while the peak value thereof and a signal arrival time are stored into an auxiliary memory 6 as reference data. In addition, the container 1 is divided into proper mesh points and pattern distances between the mesh points and a reference point are calculated and stored into the auxiliary memory 7. Now when the generation of a sound is actually detected, a calculator 3 fetches sound signals from an unknown sound source outputted from the detectors S1, S2...Si and calculates pattern distances between the unknown sound source data and the reference sound source data to search mesh points coinciding with the pattern distances from the memory 7. When a plurality of equal pattern distance curves are obtained by connecting the mesh points coinciding the pattern distances, the unknown sound source exists at the intersection of the curves. But interference of sound waves takes places depending on the shape of the container 1 and the transmission path of sound and so, indication is done on a display circuit 5 after due correction thereof.

3. 发明专利

JPS60123789A METHOD AND APPARATUS FOR DETECTING BURIED MAGNETIC BODY 失效
公开(公告)号：JPS60123789A
公开(公告)日：1985-07-02
申请号：JP23104283
申请日：1983-12-07
申请人： HITACHI LTD
发明人： KITAMORI TAKEHIKO , KONDOU MASAHIRO , FUJII MASAAKI , KITAGUCHI HIROSHI , INOUE KOUTAROU , IDEUMI SHIGERU
IPC分类号： G01V3/08
摘要： PURPOSE:To make it possible to detect the buried position of a magnetic body, by measuring magnetic force generated between the embedded magnetic body and a magnetic field generating apparatus by said apparatus. CONSTITUTION:A current is supplied to a measuring system such as an oscillator 22 and a lock-in amplifier 24 from a power source 20 through a stabilizing power source 21 and the oscillator 22 supplies oscillator output to a magnetic field generating apparatus 23 to generate an AC magnetic field. In addition, a reference signal is inputted to the reference signal side of the amplifier 24 from the oscillator 22. On the other hand, a magnetic force detecting probe 25 is slid along the ground surface and the DC component obtained from the probe 25 at a magnetic body embedded place is removed by a bridge 26 while only the AC component is inputted to the signal side of the amplifier 24 through a potentiometer 27. The output signal amplified by the amplifier 24 is recorded by a recorder 28, and the presence or absence and buried depth of a buried magnetic body can be determined on the basis of the output signal of the amplifier 24.

4. 发明专利

JPS6079274A MEASUREMENT FOR KINETIC ENERGY OF IMPACT OBJECT 失效
公开(公告)号：JPS6079274A
公开(公告)日：1985-05-07
申请号：JP18702883
申请日：1983-10-07
申请人： HITACHI LTD
发明人： IDEUMI SHIGERU , MICHIGUCHI YOSHIHIRO , SENOO MAKOTO
IPC分类号： G01P15/09 , G01H17/00 , G01P15/00 , G01S5/22 , G01S5/30
摘要： PURPOSE:To enable accurate decision on kinetic energy of a foreign matter when it hits a construction by determining a detector to be used in the estimation of energy for respective areas of the object construction beforehand while the peak value is referred on a detector signal when an impact of known energy is applied on the respective areas. CONSTITUTION:J pieces of detectors S1, S2...SJ are mounted to a pressure vessel 1 and signals detected therewith are inputted into an impact energy measuring device 100 of the pressure vessel. The signals from the detectors S1, S2... and SJ are inputted into a signal waveform memory 120 through amplifiers 111... and 11J, which are adapted to memorize signal waveforms of the detectors during the period about several tens ms before and after the generation of the impact sound. The memorized waveforms are analyzed by a computer 130 for identifying sound source positions and measuring impact energy to extract information necessary for identification of position and estimation of energy. A reference sound source data library memory 140 is produced to record time difference in the arrival of acoustic signals and peak values of wave height.

5. 发明专利

JPS592873B2 JPS592873B2 - 失效
公开(公告)号：JPS592873B2
公开(公告)日：1984-01-20
申请号：JP13045875
申请日：1975-10-31
申请人： Hitachi Ltd
发明人： TSUKAMOTO MORIAKI , IDEUMI SHIGERU , DOI AKIRA
IPC分类号： G01T1/167 , G21C17/00 , G21C17/02

6. 发明专利

JPS5764125A Data recording apparatus 失效
标题翻译：数据记录装置
公开(公告)号：JPS5764125A
公开(公告)日：1982-04-19
申请号：JP13985980
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 , IDEUMI SHIGERU , TANISAKA SATOSHI
IPC分类号： G01H17/00 , G01D9/28 , G01N29/14
CPC分类号： G01D9/28
摘要： PURPOSE:To record an effective detect signal out of sound detecting elements which are more in number than input channels, in accordance with locations where loose parts are generated, by recording output signals of sound detecting elements which are decided by the content of input signals to a storing device. CONSTITUTION:When output signals a1-an of(n) pieces of sound detecting elements are supplied to a signal selector 2 as the input, and an external signal(c)is supplied to an ROM1 whose signal ratio of input//output is 1:1, a signal (d) is read, and, based on the content of the signal (d), a part signals b1-bm out of the signals a1-an are recorded in a recording device 3. Therefore, it is possible to correlate contents 1 -n of the input signal (c) to the ROM1 with detect channels for loose parts, and to selectively record signals from sound detecting elements near the loose parts in accordance with the detected channels for loose parts.
摘要翻译：目的：通过记录由输入信号的内容决定的声音检测元件的输出信号，根据产生松动部分的位置，将数字多于输入声道的声音检测元件记录有效的检测信号存储装置。构成：当将（n）个声音检测元件的输出信号a1-an提供给作为输入的信号选择器2，并且外部信号（c）被提供给其输入//输出的信号比为1的ROM1 ：1，读取信号（d），并且基于信号（d）的内容，信号a1-an中的部分信号b1-bm被记录在记录装置3中。因此，可以将输入信号（c）的内容1-n与ROM1与用于松散部件的检测通道相关联，并且根据检测到的松动部件的通道从松动部件附近的声音检测元件选择性地记录信号。

7. 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.

8. 发明专利

JPS5682459A SPARK DETECTOR 失效
公开(公告)号：JPS5682459A
公开(公告)日：1981-07-06
申请号：JP15915379
申请日：1979-12-10
申请人： HITACHI LTD
发明人： MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU
IPC分类号： G01R31/12 , G01R29/00 , G01R31/00
摘要： PURPOSE:To make the generation of spark detectable in an early time without any malfunction by operating the sustaining time of the high-frequency current at the generation of spark and detecting the spark generation when it exceeds a set value in a rotating machine. CONSTITUTION:Current is supplied from an exciter 4 to the slip rings 2 provided to the end part of a rotor 1 via sliding brushes 3. The spark generated at the contact surfaces between the brushes 3 and the rings 2 is detected with a high-frequency current detector 5, and the output thereof is sent to a signal processing device 6. In addition, the rotating speed signal of a revolution detector 7 is also supplied to the device 6, and the results of the operation of the device 6 are displayed in a display device 8. In the device 6, the output signal of the detector 5 is detected 602, and the total sustaining time of the intermittent signal is measured 603, also, the signal of the detector 7 is counted 605, and the measured time is divided 604 by the count value and the result is sent to a comparator 606 where it is compared with the output of a level setter 607 and when it exceeds the set value, the spark generation signal is outputted.

9. 发明专利

JPS5443053A SIGNAL TRANSMISSION DEVICE 失效
公开(公告)号：JPS5443053A
公开(公告)日：1979-04-05
申请号：JP10885177
申请日：1977-09-12
申请人： HITACHI LTD
发明人： YAMADA IZUMI , MICHIGUCHI YOSHIHIRO , IDEUMI SHIGERU
IPC分类号： H04B10/25 , B60R16/02 , B60R16/027 , B62D1/04 , G01D5/26 , G08C23/00 , G08C23/04 , H04B10/00 , H04B10/11 , H04B10/114 , H04B10/524
摘要： PURPOSE:To let signal transmission of good S/N ratios be performed by providing shield plates so as to enclose the moving loci of light emitting elements, disposing photo detectors within the spaces enclosed by said shield plates and performing the signal transmission between the moving parts and static parts with light.

10. 发明专利

JPS6327652B2 失效
公开(公告)号：JPS6327652B2
公开(公告)日：1988-06-03
申请号：JP8829879
申请日：1979-07-13
申请人： HITACHI LTD
发明人： YAMADA IZUMI , IDEUMI SHIGERU , KAWAI MASAO , TANISAKA SATOSHI
IPC分类号： G01M99/00 , G01M7/00 , H02K11/00

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式