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1. 发明专利

JPH08136517A METHOD AND APPARATUS FOR ULTRASONIC FLAW DETECTION 失效
公开(公告)号：JPH08136517A
公开(公告)日：1996-05-31
申请号：JP27907194
申请日：1994-11-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAMEDA MASAKAZU , TATEYAMA MASARU , NOJIMA HISAO , KIKUCHI OSAMU , KOSHIRAE MITSUO , KUMASAKA KENJI , SEGAWA NOBUYUKI , SASAKI TSUKASA
IPC分类号： G01N29/44 , G01N29/22
摘要： PURPOSE: To enhance efficiency in the evaluation of data and the flaw detection work by recording the data obtained through ultrasonic flaw detection in parallel with the flaw detection work. CONSTITUTION: The ultrasonic flaw detection apparatus comprises a driver for holding an ultrasonic probe and scanning over a specimen, a controller for controlling the scanning of the driver, an ultrasonic flaw detector 20 for amplifying a receiving signal in ultrasonic flaw detection and outputting an ultrasonic video signal, and a data recorder 5 for capturing the video signal using the positional signal of the probe as a sync signal and recording the video signal automatically on an external memory medium. The excitation timing for the total refraction angle is time shared in the ultrasonic flaw detection and the receiving signal at each angle us converted 6 into a digital data in synchronism with that timing. The data is then stored alternately in two alternative buffer memories 9, 10 provided in the recorder 5. A data stored in one of two alternative butter memories 9, 10, into which the digital data associated with flaw detection is not written, is then transferred to an external memory medium 15a.

2. 发明专利

JPH01237450A ULTRASONIC FLAW DETECTING APPARATUS 失效
公开(公告)号：JPH01237450A
公开(公告)日：1989-09-21
申请号：JP6319388
申请日：1988-03-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAKU KAZUO , KANDA KIMIO , TATEYAMA MASARU , KAKINUMA YUKIO , SASAKI TSUKASA , UOZUMI HIROTO
IPC分类号： G01N29/44 , G01N29/04 , G01N29/30
摘要： PURPOSE:To improve checking efficiency, by providing an ultrasonic flaw detecting device, a distance-amplitude correcting (DAC) device, an operating panel and a digital memory, and performing the preparation of correction and the like of a DAC curve readily. CONSTITUTION:An ultrasonic flaw detecting device 5 provided with a DAC device 6 can perform the preparation, reading, correction, storing, erasing and the like of a DAC curve at a high speed based on the commands from an operating panel. Checking personnel do not feel waiting times even in a severe environment such as in an atomic power plant, and checking efficiency can be improved. A digital memory 11 is provided for the individual beam of a plurality of ultrasonic beams. Therefore, the individual DAC curve can be stored independently. When the ultrasonic beam is transmitted, the DAC curve is outputted in synchronization with every beam. Therefore, the optimum DAC curve can be obtained for the three ultrasonic beams of 0 deg., 45 deg. and 60 deg.. The checking efficiency, the checking reliability and the like can be improved.

3. 发明专利

JPS63179249A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS63179249A
公开(公告)日：1988-07-23
申请号：JP988387
申请日：1987-01-21
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TATEYAMA MASARU , KINO HIROTOSHI , KOSHIRAE MITSUO
IPC分类号： G01N29/04 , G01N29/26
摘要： PURPOSE:To increase a flaw detection speed and to perform entire-circumference flaw detection efficiently throughout the overall length of a pipe with high accuracy by correcting flaw detection signals which are inputted from respective vibrators in time series independently by vibrators, and uniformizing the sensitivity of flaw detection to all the vibrators. CONSTITUTION:A sensitivity leveling circuit 7 corrects flaw detection signals (d) which are inputted in order by synchronizing sensitivity correction data for all elements which are set previously through a microcomputer (MC) 1 with a timing signal. Then, sensitivity-corrected flaw detection signals (e) after sensitivity corrections are made for all the elements are outputted to an amplifying and detecting circuit 9 in time series. The circuit 9 amplifies the signals (e) into a video signal (f). A signal selecting circuit 11 selects and outputs a signal only in a specific time through the MC 1 for the signal (f). Further, a peak holding circuit 10 holds the maximum crest value in the signal selected by the circuit 11 and evaluates the signal. Then a display control circuit 12 synchronizes the signal (f) which is inputted in time series with the timing signal and the display control signal (g) for all the elements of a probe 8 is displayed 13.

4. 发明专利

JPS60149967A ULTRASONIC FLAW DETECTION SIGNAL RECORDING AND REGENERATING APPARATUS 失效
公开(公告)号：JPS60149967A
公开(公告)日：1985-08-07
申请号：JP562384
申请日：1984-01-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAKOI MITSUO , TATEYAMA MASARU
IPC分类号： G01N29/44 , G01N29/06
摘要： PURPOSE:To make it possible to entirely record and regenerate an ultrasonic flaw detection signal and a flaw detection position, by a method wherein the ultrasonic flaw detection signal and a probe position signal are converted to television signals which are, in turn, recorded by a recording and regenerating apparatus. CONSTITUTION:An ultrasonic flaw detector 2 drives an ultrasonic probe 1 by the flaw detector synchronous signal (c) outputted from a converter 4 to output an ultrasonic video signal (b). This signal (b) is once taken in buffer memory 3 and successively outputted as an intermittent ultrasonic video signal (i) by the control signal (e) of the converter 4. On the other hand, the position signal (f) from a position detector 6 for detecting the position of the ultrasonic probe 1 is converted to a parallel position signal (g) by a position input circuit 7 while said parallel position signal (g) is further converted to a series position signal (h) by a parallel serial converter circuit 8. Subsequently, the intermittent ultrasonic video signal (i) and the series position signal (h) are alternately changed over by a change-over circuit 9 to be inputted to the converter 4 and television signals are recorded by a recording and regenerating apparatus 5.

5. 发明专利

JPH0933494A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH0933494A
公开(公告)日：1997-02-07
申请号：JP18714795
申请日：1995-07-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： INADA YASUNARI , TATEYAMA MASARU , KAMEDA MASAKAZU
IPC分类号： G01N29/04 , G01N29/00 , G01N29/07 , G01N29/22 , G01N29/44 , G01N29/10 , G01N29/18
摘要： PROBLEM TO BE SOLVED: To obtain an ultrasonic flaw detector in which the secular change can be evaluated surely while shortening the processing time. SOLUTION: An A/D converter 3 converts a video signal 20 having A scope waveform outputted from an ultrasonic flaw detector 2 into a digital value. A converted digital data 27 is transferred to a waveform acquisition circuit 4 and a peak detection circuit 5. The waveform acquisition circuit 4 collects the waveform data in a waveform memory depending on the resolution set by a setter 11 and the number of data and then sequentially records the waveform data on a recorder 13. On the other hand, a peak detection circuit 5 and a route counter 6 detect the peak value of echo and the route thereof, respectively, at a plurality of points. A threshold level set circuit 8 sets a threshold level 24, designated by a computer 10, in the peak detection circuit 5. The peak detection circuit 5 detects the peak of data exceeding the threshold level 24 within the gate range of a gate signal 25 and the waveform acquisition circuit 4 acquires a waveform in parallel therewith. A recorder 13 records the peak value and route data for one echo point separately from the waveform data.

6. 发明专利

JPH07225223A METHOD AND DEVICE FOR RECORDING ULTRASONIC FLAW DETECTION WAVE FORM 失效
公开(公告)号：JPH07225223A
公开(公告)日：1995-08-22
申请号：JP1710094
申请日：1994-02-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TATEYAMA MASARU , KAMEDA MASAKAZU , NOJIMA HISAO , KAKOI MITSUO , SEGAWA NOBUYUKI , SASAKI TSUKASA
IPC分类号： G01N29/04 , G01N29/07 , G01N29/11 , G01N29/22 , G01N29/44 , G01N29/10
摘要： PURPOSE:To eliminate re-flaw-detection and to make wave form evaluation easier for shorter inspection and evaluation time by compressing and recording the digital data of A scope wave form obtained with ultrasonic flaw detection with multiple data compression calculation means. CONSTITUTION:Ultrasonic video signal is converted into digital value at a constant fast sampling clock, and at a data selection circuit 4, the data is compressed with the resolution selected among 1/1, 1/2, 1/4, 1/8 and 1/16 by a condition setting part 3. For example, for 1/4, the maximum value is kept every four pieces out of the data sequentially inputted, and it is written into a wave form memory 5 as one data. Therefore, the four-signal time of sampling clock comes to be measurement resolution. The data written into the memory 5 represents wave height value, and address a path length value. A compression calculation circuit 6 further calculates the data written into the memory 5 for compression and coding, and after that, sequentially writes it into a buffer memory 7, so that ultrasonic flaw detection wave form is recorded.

7. 发明专利

JPS6147557A Ultrasonic flaw detection signal recorder/reproducer 失效
标题翻译：超声波检测信号记录仪/复印机
公开(公告)号：JPS6147557A
公开(公告)日：1986-03-08
申请号：JP16936284
申请日：1984-08-15
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： KOSHIRAE MITSUO , TATEYAMA MASARU , OOTA YASUKI
IPC分类号： G01N29/44 , G01N29/06
CPC分类号： G01N29/0627
摘要： PURPOSE:To accurately record and reproduce an ultrasonic signal having a frequency component exceeding the frequency band of a TV signal recorder/reproducer, by providing a time base extending device to record an ultrasonic video signal with an extended time base. CONSTITUTION:According to a flaw detector synchronous signal C from a converter 4, an ultrasonic flaw detector 2 drives an ultrasonic probe 1 to output an ultrasonic video signal (b). Once the ultrasonic video signal (b) is fetched into a buffer memory 3, it is outputted sequentially as intermittent ultrasonic video signal (f) in response to a time base control signal (g). The intermittent ultrasonic video signal (f) is extended in the time base with a time base extending device 8 by a control signal (e) from the converter 4 and outputted to the converter 4 as time base conversion ultrasonic video signal (h). Then, the video signal is converted into a TV signal (d) to be recorded with a TV signal recorder/reproducer 5.
摘要翻译：目的：通过提供时基延长装置来记录具有延长的时基的超声波视频信号，准确地记录和再现具有超过TV信号记录器/再现器的频带的频率分量的超声波信号。构成：根据来自转换器4的探伤器同步信号C，超声波探伤器2驱动超声波探头1输出超声波视频信号（b）。一旦超声波视频信号（b）被提取到缓冲存储器3中，则响应于时基控制信号（g）被顺序地输出为间歇超声视频信号（f）。间歇超声波视频信号（f）通过来自转换器4的控制信号（e）以时基延长装置8在时基中延长，作为时基转换超声波视频信号（h）输出到转换器4。然后，将视频信号转换成电视信号（d）以用TV信号记录器/再现器5记录。

8. 发明专利

JPS59138951A Ultrasonic flaw detecting device 失效
标题翻译：超声波检测装置
公开(公告)号：JPS59138951A
公开(公告)日：1984-08-09
申请号：JP1281983
申请日：1983-01-31
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： GOTOU HIROSHI , KOSHIRAE MITSUO , KANDA KIMIO , TATEYAMA MASARU
IPC分类号： G01N29/06 , G01N29/22
CPC分类号： G01N29/22
摘要： PURPOSE:To improve the efficiency of flaw detection by separating a picture display device for an ultrasonic flaw detection picture into three parts, i.e. a monitor part, control part, and electric power source part. CONSTITUTION:The ultrasonic flaw detecting device is divided into the monitor 1, controller unit 2, and electric power source unit 3. Flaw detection data obtained by a probe 6 is inputted to the controller unit 2 through a cable 8, ultrasonic flaw detector 5, and cable 7. A probe position signal obtained by a position detector 13 is inputted to the controller unit 2 through a cable 14. The controller unit 2 is supplied with electric driving power from the power source unit 3 through a cable 9 to display processed data as a picture on the monitor 1 through a cable 10. A change in picture display system, clearing of a data memory, etc., are performed by a controller 12 through a cable 11. The controller unit 2 and power source unit 3 are installed outside to obtain convenience for flaw detection at a narrow part.
摘要翻译：目的：通过将超声波探伤图像的图像显示装置分离为监视部分，控制部分和电源部分三部分来提高探伤效率。构成：将超声波探伤装置分为监视器1，控制器单元2和电源单元3.探头6获得的探伤数据通过电缆8，超声波探伤仪5输入到控制器单元2，通过位置检测器13获得的探头位置信号通过电缆14输入到控制器单元2.控制器单元2通过电缆9从电源单元3被提供电驱动电力，以显示处理数据作为通过电缆10在监视器1上的图像。图像显示系统的改变，数据存储器的清除等由控制器12通过电缆11执行。控制器单元2和电源单元3被安装在外部以获得在狭窄部分的缺陷检测的便利。

9. 发明专利

JPS58223750A Distance and amplitude compensation device 失效
标题翻译：距离和振幅补偿装置
公开(公告)号：JPS58223750A
公开(公告)日：1983-12-26
申请号：JP10681382
申请日：1982-06-23
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： MAEZONO TOSHIROU , NARUSE AKISUKE , KANDA KIMIO , TATEYAMA MASARU
IPC分类号： G01N29/44 , G01N29/40
CPC分类号： G01N29/40
摘要： PURPOSE:To generate a compensated distance-amplitude curve in a short time by automating the detection of each compensation point and the fetch of the peak value and propagation time of a reflected echo during the generation of the distance-amplitude curve. CONSTITUTION:An arithmetic circuit 11 fetches a peak value at each compensation point registered in a compensation point data memory 16 in the order of propagation time and the amount of compensation between compensation points is calculated by interpolation based upon their peak values; and the propagation time is converted into an address of a data memory 12 for the amount of compensation corresponding to the successive propagation time is stored successively in the memory 12. This operation is carried out similarly for some compensation points (b) and (c) within a flaw detection range, generating the distance-amplitude compensation curve within the flaw detection range.
摘要翻译：目的：通过在产生距离 - 振幅曲线的过程中，自动执行每个补偿点的检测和获取反射回波的峰值和传播时间，从而在短时间内产生补偿的距离 - 幅度曲线。构成：运算电路11按照传播时间的顺序取得在补偿点数据存储器16中登记的各补偿点的峰值，并且通过基于其峰值的插值来计算补偿点之间的补偿量; 并且将传播时间转换为数据存储器12的地址，因为与连续传播时间相对应的补偿量被连续地存储在存储器12中。对于一些补偿点（b）和（c），该操作类似地执行，在缺陷检测范围内，产生裂纹检测范围内的距离 - 幅度补偿曲线。

10. 发明专利

JPH06229992A METHOD AND APPARATUS FOR ULTRASONIC FLAW DETECTION 失效
公开(公告)号：JPH06229992A
公开(公告)日：1994-08-19
申请号：JP2007793
申请日：1993-02-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TATEYAMA MASARU , KUMASAKA KENJI , KAKINUMA YUKIO , NOJIMA HISAO , KANDA KIMIO , SASAKI TSUKASA
IPC分类号： G01N29/44 , G01N29/22
摘要： PURPOSE:To achieve a quick inspection by eliminating reinspection by the resetting of sensitivity even when an ultrasonic echo is too intense. CONSTITUTION:An ultrasonic probe 1 is provided having vibrators 2, 3, 4 and 5 for transmitting ultrasonic wave beams to a specimen 26 and receiving the reflected waves from the specimen 26 corresponding to a plurality of angles of refraction and an ultrasonic flaw detector 7 which amplifies a reception signal from the ultrasonic probe 1 to perform a wave form display thereof. A timing for exciting the vibrators 2, 3, 4 and 5 is determined in a time shaving while excitation of the vibrators is performed at 1 deg. each a plurality of times while the amplification factor of a main amplification circuit 11 is changed synchronizing individual excitation timings. This operation is performed in a time series manner with respect to the vibrators at each of the plurality of angles of refraction. Thus, flaw detection data different in the amplification factor can be obtained by one scanning to allow the obtaining of data of another amplification factor with no scale over position even when any scale over action occurs at a certain amplification factor.

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