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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

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。

3. 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。

4. 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.

5. 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

6. 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.

7. 发明专利

JPS60214226A Ultrasonic level gauge 失效
标题翻译：超声波水准仪
公开(公告)号：JPS60214226A
公开(公告)日：1985-10-26
申请号：JP7086984
申请日：1984-04-11
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： KANDA KIMIO , KAKEFUDA MASARU , KOSHIRAE MITSUO , SAKAIGAWA HIROMASA
IPC分类号： G01F23/26 , G01F23/28 , G01F23/296
CPC分类号： G01F23/28
摘要： PURPOSE:To obtain a small-sized, lightweight, and simple ultrasonic level gauge which is easy to carry and displays the liquid level in a container by providing an ultrasonic transmitter and an ultrasonic receiver on the external surface of the container independently opposite to each other. CONSTITUTION:The transmitter 4 is provided at the outside of the container 1 and the receiver 5 is provided at the outside of the container 4 opposite the transmitter. Then, an ultrasonic wave 6 propagating in liquid 2 is received by the receiver 5 and a pilot lamp 7 turns on, so that the presence of the liquid is known. When, however, the transmitter 4 is at a position 4' and the receiver is at 5', the ultrasonic wave does not propagate in air, so the ultrasonic wave is not received at the position 5' and the pilot lamp is off, so that the absence of liquid is known. Thus, the liquid level 3 in the container 1 is measured from the relative position relation between the transmitter 4 and receiver 5.
摘要翻译：目的：通过在容器的外表面上提供独立相反的超声波发射器和超声波接收器，获得容易携带和显示液位的小型，轻便和简单的超声波液位计。构成：发射器4设置在容器1的外部，并且接收器5设置在与发射器相对的容器4的外部。然后，在液体2中传播的超声波6被接收器5接收并且指示灯7导通，使得液体的存在是已知的。然而，当发射机4处于位置4'且接收机处于5'时，超声波不会在空气中传播，所以超声波不会在5'位置接收并且指示灯熄灭，所以没有液体是已知的。因此，容器1中的液位3是从发射器4和接收器5之间的相对位置关系来测量的。

8. 发明专利

JPS58129356A PATH LENGTH FINDING ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS58129356A
公开(公告)日：1983-08-02
申请号：JP1157682
申请日：1982-01-29
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOSHIRAE MITSUO , KAKINUMA YUKIO
IPC分类号： G01N29/44 , G01N29/07
摘要： PURPOSE:To determine directly as the length of actual beam path in an object to be inspected counts of an ultrasonic beam path obtained by counting the ultrasonic beam path therein with a clock signal of the frequency proportional to sound velocity. CONSTITUTION:An oscillation circuit 1 generates a clock pulse of a fixed frequency and a phase comparator 2 compares the frequency of an output pulse from a programmable divider 5 with the clock pulse of the oscillation circuit 1 as reference to control current to a low pass filter 3, which transmits the deviation of the frequency detected with the phase comparator 2 to a voltage- frequency converter 4 as variation in the voltage value and then, the voltage- frequency converter 4 generates a pulse of the frequency proportional to the input voltage. The pulse undergoes an N division with a divider 5 according to sonic data of n bit and inputted into the phase comparator 2 while counted with a path counter 6 based on a transmitted ultrasonic synchronous signal and an ultrasonic echo signal and the counts are outputted to provide data of m bit as actual ultrasonic beam path length in an object being inspected.

9. 发明专利

JPS58129248A IMAGE DISPLAY FOR ULTRASONIC FLAW DETECTION 失效
公开(公告)号：JPS58129248A
公开(公告)日：1983-08-02
申请号：JP1005982
申请日：1982-01-27
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TATEYAMA MASARU , KOSHIRAE MITSUO
IPC分类号： G01N29/06 , G01N29/22
摘要： PURPOSE:To permit accurate evaluation of flaw detecting images by using a digital image memory in the part where flaw detecting image screens are made and accumulated, and using the data of a digital echo memory as a luminance signal. CONSTITUTION:An A scope signal 100 is subjected to A/D conversion and is stored in an echo memory 14. A deflection circuit 11 makes digital addresses conforming to the loci of ultrasonic waves in accordance with the control of a control circuit 15, and according to said addresses, said circuit writes the data of the memory 14 as a luminance signal into an image memory 12, thereby making and accumulating flaw detecting images such as sectional images or plane images. The accumulated data is read out and is displayed on a display 10. Here, a selecting circuit 13 is provided between the memories 14 and 12, so that the level signal from the memory 14 is written and read out as it is and is supplied to the display 10 without accumulating the same in the memory 12 in the stage of making the flaw detecting images in the memory 12.

10. 发明专利

JPS6021449A RECORDING AND REGENERATIVE APPARATUS OF ULTRASONIC WAVE FLAW DETECTING SIGNAL 失效
公开(公告)号：JPS6021449A
公开(公告)日：1985-02-02
申请号：JP12941683
申请日：1983-07-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOSHIRAE MITSUO , KAKEFUDA MASARU , GOTOU HIROSHI , SAKAIGAWA HIROMASA , TATEYAMA MASARU
IPC分类号： G01N29/44 , G01N29/06
摘要： PURPOSE:To enable regeneration of record of characteristic itself of wave form, by storing a supersonic wave signal of a supersonic flaw detector, subdividing it into a plurality of parts and adding a buffer memory which reads out content of the memory and recording and regenerating the ultrasonic wave flaw detecting signal as its original wave form. CONSTITUTION:A control circuit 4 produces a synchronizing to a supersonic wave flaw detector 2 from a television synchronizing signal of a television synchronizing signal generating circuit 3. Further, a buffer memory 5 memorizes once an ultrasonic wave signal from the detector 2 by controlling signal of the circuit 4, and divides the signal into a plurality of parts in tune with the television synchronizing signal and reads out its memorized content as a television video signal. A television signal recording and regenerating circuit 6 records the television video signal from a memory 5 by a television synchronizing signal from the circuit 3.

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