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1. 发明专利

JPS61117450A Ultrasonic inspecting device for cracking defect detection 失效
标题翻译：用于破裂缺陷检测的超声波检查装置
公开(公告)号：JPS61117450A
公开(公告)日：1986-06-04
申请号：JP23842784
申请日：1984-11-14
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Tokyo Gas Co Ltd
发明人： KUBOTA JUN , SASAKI SOJI , WATABIKI MASAYUKI , KOSHIRAE MITSUO , FUJITA AKITAKA , OKADA MAMORU , SHIMIZU SHINICHI
IPC分类号： G01N29/04 , G01N29/06 , G01N29/07 , G01N29/11 , G01N29/38 , G01N29/42 , G01N29/44
CPC分类号： G01N29/4445 , G01N29/0618 , G01N29/07 , G01N29/11 , G01N29/38 , G01N29/42 , G01N2291/02854 , G01N2291/044 , G01N2291/2675
摘要： PURPOSE:To detect a directional defect and discriminate between a shape echo and a defect echo by providing a converter so that an ultrasonic wave is transmitted to and received from a part to be inspected simultaneously and also independently. CONSTITUTION:Transmitted pulses generated by a pulser 51 are supplied to one of converters 31-34 selectively by a multiplexer (MPX) 52 and sent as an ultrasonic wave to the part 43 to be inspected. One of echoes that the converters 31-34 receive from a defect, etc., is selected by the MPX 53 and amplified by a receiver 54 on a frequency selective basis. Then, a gate 55 selects only a signal of time when the signal from the part 43 to be inspected is expected to arrive with time. Then, a defective echo discriminating device 8 calculates the position of a reflection source for the echo from a beam route, amplitude data, data on a flaw detection direction, etc., and stores it together with the respective data to discriminate the defect and decide on its direction. Therefore, the defect is detected speedily and securely.
摘要翻译：目的：通过提供转换器来检测方向性缺陷并区分形状回波和缺陷回波，使得超声波同时且独立地被传输到要被检查的部件并被接收。构成：由脉冲发生器51产生的发送脉冲由多路复用器（MPX）52选择性地提供给转换器31-34之一并作为超声波发送到待检查的部分43。转换器31-34从缺陷等接收的回波之一由MPX 53选择，并由频率选择性地由接收器54放大。然后，门55仅选择来自待检查部分43的信号随时间到达的时间信号。然后，缺陷回波识别装置8计算来自波束路径的回波的反射源的位置，振幅数据，探伤方向上的数据等，并将其与各个数据一起存储以区分缺陷并决定在它的方向。因此，可以快速，安全地检测缺陷。

2. 发明专利

JPS6480859A MULTICHANNEL FLAW DETECTION SYSTEM 失效
公开(公告)号：JPS6480859A
公开(公告)日：1989-03-27
申请号：JP23716587
申请日：1987-09-24
申请人： HITACHI LTD , TOKYO GAS CO LTD
发明人： SONODA SHINJI , WATABIKI MASAYUKI , IOBE YOSHISHIGE , YAMASHITA MAKOTO , KOSHIRAE MITSUO , TSUGE MUNENORI , FUJITA AKITAKA
IPC分类号： G01N29/44 , G01N29/04
摘要： PURPOSE:To discriminate between a cracking defect and an unevenness defect by arranging probes and counting ultrasonic wave-received signals from the same position. CONSTITUTION:Three probes 3 are arranged at intervals of 45 deg. from one point on a weld line 2 and slid on the surface of a body 1 to be inspected. An ultrasonic wave beam 3' is sent to the probes 3 through a pulser 4 in order corresponding to three modes of the probes 3 and a detection signal is sent to an amplifier 7 through a receiver 5; when a signal higher than a constant level is obtained, it is transferred to a data processor 11 through an echo gate circuit 9 in synchronism with position data. A reflection echo due to the unevenness of the body 1 is obtained over a wide range and a reflection echo from the crack defect has high directivity, so the cracking defect can be discriminated as the unevenness.

3. 发明专利

JPS61105460A Ultrasonic flaw detecting method and its probe 失效
标题翻译：超声波检测方法及其探针
公开(公告)号：JPS61105460A
公开(公告)日：1986-05-23
申请号：JP22690784
申请日：1984-10-30
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Tokyo Gas Co Ltd
发明人： KUBOTA JUN , SASAKI SOJI , WATABIKI MASAYUKI , KOSHIRAE MITSUO , FUJITA AKITAKA , OKADA MAMORU , SHIMIZU SHINICHI
IPC分类号： G01N29/04 , G01N29/07 , G01N29/24
CPC分类号： G01N29/07 , G01N2291/044 , G01N2291/2675
摘要： PURPOSE:To detect a vertical cracking defect at a high speed without lowering flaw detection precision by arranging only one or two adjacent converters at a distance of one skip from a part to be inspected. CONSTITUTION:Converters 15-18 form the 1st group and converters 19-22 form the 2nd group. Further, the 1st and the 2nd groups cover flaw detection areas I and II. In this case, the converters 17 and 18 in the 1st group and the converters 21 and 22 in the 2nd group are arranged at a distance of one skip from their original positions. When ultrasonic flaw detection is performed by the 1st and the 2nd groups, the transmitting/receiving operation of the converter 15 is performed by the 1st group and then operations of the converters 16-18 are carried out, and flaw detection is performed by a 1-probe method and then flaw detection is performed by a 2-probe method. Thus, the flaw detection is completed and flaw detection by the 2nd group is performed, thus finishing one period of flaw detecting operation.
摘要翻译：目的：通过在距离被检测部分的一个跳跃距离内仅设置一个或两个相邻的转换器，高速检测垂直裂纹缺陷，而不会降低探伤精度。构成：转换器15-18组成第一组，转换器19-22组成第二组。此外，第一和第二组覆盖探伤区域I和II。在这种情况下，第一组中的转换器17和18以及第二组中的转换器21和22被布置在距它们的原始位置一跳的距离处。当第1组和第2组进行超声波探伤时，通过第1组进行转换器15的发送接收动作，然后进行转换器16-18的动作，通过1 探测方法，然后通过2-探针法进行探伤。因此，完成了缺陷检测，并且执行了第2组的缺陷检测，从而完成了一个缺陷检测操作的周期。

4. 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。

5. 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。

6. 发明专利

JPS55149835A ULTRASONIC FLAW DETECTING METHOD AND APPARATUS 失效
公开(公告)号：JPS55149835A
公开(公告)日：1980-11-21
申请号：JP5703579
申请日：1979-05-11
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOSHIRAE MITSUO , KAKINUMA YUKIO
IPC分类号： G01N29/06 , G01N29/04
摘要： PURPOSE:To attain real time display of an image the brightness of which is not varied with the scanning speed of a detecting contactor, by memorizing reflected waves at a high rate, and carrying out rewriting in a digital image memory in accordance with the locus of ultrasonic wave at the subsequent ultrasonic wave transmitting time. CONSTITUTION:A detecting probe 1 is adapted to transmit ultrasonic waves to the inside of a sample 5 in accordance with a transmitting pulse 101a from an ultrasonic flaw detector 3. A reflected wave from the sample 5 is converted into an electric signal by the detecting contactor 1, and a conversion signal 101b is displayed on a flaw detector 3 and output at the same time as an ultrasonic echo signal 102 into an image processor 4. The echo signal 102 is memorized by a buffer memory 7 in the image processor 4. A microcomputer 11 is adapted to apply a control signal to a deflection circuit 8 through a data transfer control circuit 10, and generate an address signal equivalent to the progress of propagation of echo, signal thereof is memorized again in a digital image memory 9. Thus, variations in the brightness of an image to occur with the scanning speed of the detecting probe can be prevented.

7. 发明专利

JP2003194730A REMOTE VISUAL INSPECTION APPARATUS 审中-公开
公开(公告)号：JP2003194730A
公开(公告)日：2003-07-09
申请号：JP2001400553
申请日：2001-12-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOSHIRAE MITSUO , YAMAZAKI SABURO
IPC分类号： G01N21/954
摘要： PROBLEM TO BE SOLVED: To provide a small and simple remote visual inspection apparatus which is operated simply, which can be passed easily through even a narrow part, and in which a fear that a limit is generated in a part to be inspected is small. SOLUTION: A pumping system 1 is suspended from a hoist 2 by a rope 3, an inspection head 6 is suspended from the pumping system 1 by a hose 5 which is rich in flexibility, pressurized water is supplied to a jet nozzle 9 at the inspection head 6 from a pump 4, the water which is jetted from the jet nozzle 9 is controlled by a solenoid valve 11, the hose 5 is bent, and a direction and a position of the inspection head 6 can be changed. A television camera 7 is mounted on the inspection head 6, an image signal is supplied to a monitor 14 from a camera controller 13 via a cable 12, an image of the part to be inspected is displayed, and a visual inspection can be performed. COPYRIGHT: (C)2003,JPO

8. 发明专利

JPH1164050A MOBILE MONITORING SYSTEM 失效
公开(公告)号：JPH1164050A
公开(公告)日：1999-03-05
申请号：JP23067197
申请日：1997-08-27
申请人： HITACHI LTD
发明人： ABE TAKAHIRO , TANAKA KEIJI , TAKAHASHI MASAKI , KOSHIRAE MITSUO , HIRAKAWA HIROMASA
IPC分类号： G01D21/00 , G08G1/16
摘要： PROBLEM TO BE SOLVED: To provide a mobile monitoring system with which one worker can monitor and inspect the equipment, pipeline, etc., of a facility by only operating a moving body along an inspection route, without operating nor controlling the direction, etc., of a sensor and which can be used in an extensive outdoor area. SOLUTION: An camera section 10 is mounted on an automobile 1, and a worker monitors and inspects the abnormal spot of a pipeline 100 to be monitored for deformation, leakage, etc., by operating the automobile 1 along the pipeline 100. The object to be monitored can be a facility other than the pipeline 100 and, in addition, another sensor, such as the infrared camera, etc., can be mounted on the automobile 1 instead of the camera section 10. A mobile monitoring system monitors and inspects the pipeline 100 by controlling the camera section 10, so that the camera of the section 10 can always catch the pipeline 100 to be within the picture at all times by successively finding the present location of the moving body by means of a moving body position recognizing device or an image processor.

9. 发明专利

JPH10288806A PARTS EXCHANGING DEVICE FOR REMOTE SUPERVISORY EQUIPMENT 失效
公开(公告)号：JPH10288806A
公开(公告)日：1998-10-27
申请号：JP9558097
申请日：1997-04-14
申请人： HITACHI LTD
发明人： ABE TAKAHIRO , TANAKA KEIJI , TAKAHASHI MASAKI , KOSHIRAE MITSUO , HIRAKAWA HIROMASA
IPC分类号： G03B15/00 , G03B17/00 , H04N5/225
摘要： PROBLEM TO BE SOLVED: To provide a device of transmitting or receiving light, sound, an electromagnetic wave, etc., which is capable of maintaining a function, even in a poor environment where the device for transmitting-receiving the light, the sound, the electromagnetic wave, etc., has some functional trouble, when dust, etc., are stuck. SOLUTION: The receiver-transmitter 1 for transmitting or receiving the light, the sound, the electromagnetic wave, etc., is housed in a case 10. In the case 10, plural transmission films 12a having the properties of transmitting the light, the sound, the electromagnetic wave, etc., are attached to the front surface part of the receiver-transmitted by a hinge 15, in a state where sealability meeting the demand is applied. For preventing a deterioration in receiving/transmitting function, due to the fact that the receiver-transmitter 1 is used in the poor environment and the dust, etc., are stuck to the transmission film 12a, it functions to be easily removed by a simple driving mechanism for releasing a pawl, etc., by with the transmission film is fixed, with remote control. The film 12a to which the dust, etc., are stuck are removed/exchanged for a new transmission film prepared under the film 12a.

10. 发明专利

JPS60242320A LIQUID LEVEL MEASURING METHOD USING ULTRASONIC WAVE 失效
公开(公告)号：JPS60242320A
公开(公告)日：1985-12-02
申请号：JP9651284
申请日：1984-05-16
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KANDA KIMIO , KAKEFUDA MASARU , KOSHIRAE MITSUO , SAKAIGAWA HIROMASA
IPC分类号： G01F23/22 , G01F23/28 , G01F23/296
摘要： PURPOSE:To improve the measurement sensitivity of the liquid level in a container by providing a parallel or concentric circular curved surface in the container opposite an external surface, and bringing an opposite wall surface reflection type ultrasonic liquid level gauge to the external flank of the container. CONSTITUTION:An ultrasonic wave 5 from the opposite wall surface reflection type liquid level gauge 4 is made incident on the internal reflecting surface 3 of the container which is parallel to the external surface of the container 1 or concentrically circular, and the wave is reflected by the opposite surface 3 and detected. Further, the distance (d) to the reflecting surface is made smaller than the distance D between the wall surfaces of the container 1 to reduce attenuation, thereby easily detecting the liquid level even in a large-sized container. Consequently, the liquid level is measured in constant relation regardless of whether the container is large or small.

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