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1. 发明专利

JPH0440360A ULTRASONIC FLAW DETECTING METHOD FOR COMPOSITE MATERIAL 失效
公开(公告)号：JPH0440360A
公开(公告)日：1992-02-10
申请号：JP14691290
申请日：1990-06-05
申请人： FUJI HEAVY IND LTD , TOSHIBA CORP
发明人： YAMAMOTO KAZUTOSHI , KOSUGE HIDEO , YAMAGISHI SUMIKO , TAMAKI KIYOHIDE
IPC分类号： G01N29/04 , G01N29/22 , G01N29/44
摘要： PURPOSE:To enable highly accurate flaw detection over a wide curvature surface range by moving an ultrasonic beam in the right-left direction of the curvature surface, also moving an array probe lengthwise so as to detect its position and performing signal processing. CONSTITUTION:The array probe 11 where plural extremely small vibrators are arrayed successively in the right-left direction of the curvature surface of the composite material 16 send plural ultrasonic wave beams 30 which are controlled by an electronic scanning means 18, so even if there is variation in the position of the composite material 16, the shape of the curvature surface 17, etc., within the scanning range, the ultrasonic wave beams 30 are transmitted effectively. The controlled ultrasonic wave beam scanning is possible even at the time of reception and even if paths are disordered, the waves can securely and stably be received to enable the flaw detection. The ultrasonic wave beams 30 having directivity matching the shape of the curvature surface 17 can be transmitted and received by the electronic scanning means 18 and the directivity characteristics of the transmitting and receiving probes are controlled to inspect the curvature part over a wide range with high accuracy.

2. 发明专利

JPH06233193A FLUOROSCOPE 失效
公开(公告)号：JPH06233193A
公开(公告)日：1994-08-19
申请号：JP1384493
申请日：1993-01-29
申请人： TOSHIBA CORP
发明人： TAMAKI KIYOHIDE
IPC分类号： A61B6/00 , G01N23/04 , H04N5/321 , H04N5/325 , H04N7/18
摘要： PURPOSE:To provide a fluoroscope which can improve the SN ratio and the image resolution by surely eliminate the fixed pattern noise out of an image to be examined. CONSTITUTION:The filters 4a, 4b and 4c serve as the X-ray absorbers which have the same absorptivity as an object 3 to be examined. Then the filters 4a-4c are irradiated by the X-ray through an X-ray device 1 in the same conditions as for the object 3. The transmitted X-ray is visualized by an image sensor 5, and photographed by a TV camera 6. Thus the images of filters 4a-4c are acquired and then subtracted from the image of the object 3 so that the structural noises can be reduced.

3. 发明专利

JPH02173564A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH02173564A
公开(公告)日：1990-07-05
申请号：JP32790488
申请日：1988-12-27
申请人： NIPPON STEEL CORP , KRAUTKRAEMER JAPAN , TOSHIBA CORP
发明人： FUJIKAKE YOUICHI , MUROTA SHOJI , ASANUMA SHINJI , UDAGAWA YOSHIO , TAMAKI KIYOHIDE
IPC分类号： G01N29/44 , G01N29/22
摘要： PURPOSE:To improve reliability by deciding a fact that there is a defect in a body to be inspected, when the number of continuous detections of a reflecting signal in plural directions exceeds a threshold. CONSTITUTION:An ultrasonic probe 1 of a linear array type is controlled by a processing control part 3 and scans a body to be inspected 5 in the width direction W, moves by a prescribed distance in the lengthwise direction L, when a measurement of a 1-line portion is ended, repeats the scan and inspects the whole body to be inspected 5. In this case, each receiving element of the probe 1 outputs a reflected echo signal as a receiving signal, and comparing parts 7-1 to 7-n compare the receiving signals from each element with a level threshold which is set in advance by a threshold setting part 9 and decide whether a reflected echo exists or not, and output it to a parallel - serial converting part 11. Subsequently, the converting part 11 converts a result of comparison inputted in parallel to a serial signal and supplies it to a counter 13, and the counter 13 counts the reflected echo signal inputted as a time series and decides whether a defect exists or not. Also, counters 17-1 to 17-n count reflected echo signals supplied through shift registers 15-1 to 15-n and can decide whether a defect exists or not.

4. 发明专利

JPH02259560A METHOD AND DEVICE FOR ULTRASONIC FLAW DETECTION OF STEEL TUBE WELD ZONE 失效
公开(公告)号：JPH02259560A
公开(公告)日：1990-10-22
申请号：JP8259389
申请日：1989-03-31
申请人： NIPPON STEEL CORP , TOSHIBA CORP , KRAUTKRAEMER JAPAN
发明人： FUJIKAKE YOUICHI , HORIKOSHI KIYOMI , MUROTA SHOJI , ASANUMA SHINJI , TAMAKI KIYOHIDE , UDAGAWA YOSHIO
IPC分类号： G01N29/30 , G01N29/22 , G01N29/26
摘要： PURPOSE:To securely inspect a target flaw detection area and to improve the reliability and reproducibility of the inspection by monitoring variation in the propagation direction of an ultrasonic wave beam due to the noncircularity of the flaw detection section of the steel tube and variation in the inclination. CONSTITUTION:A coupling device 10 performs the flaw detection of the upper part of the weld zone 12 of the steel pipe 11 by using water as a contact medi um and a coupled array type probe 1. The ultrasonic wave beam is made inci dent on the steel tube 11 by a sector scan under the command of a computer 5 according to the conditions of the outward appearance and thickness of the steel tube 1, the position and inclination of the probe 1, etc., and refracted ultrasonic wave beams 31 to 39 are propagated in the steel tube 11 and weld zone 12. Then, a receiving probe 13 for monitoring decides which ultrasonic wave beam is received. The decision result is used to estimate which ultrasonic wave beam reaches the center of the target flaw detection area, and the deflec tion angle of each beam is controlled by the computer 5 so that the beam becomes the center beam of the sector scan, thereby inspecting a defect of the weld zone 12.

5. 发明专利

JPH0267957A ULTRASONIC FLAW DETECTING METHOD FOR WELDED PART OF STEEL PIPE 失效
公开(公告)号：JPH0267957A
公开(公告)日：1990-03-07
申请号：JP21983588
申请日：1988-09-02
申请人： NIPPON STEEL CORP , TOSHIBA CORP , KRAUTKRAEMER JAPAN
发明人： FUJIKAKE YOUICHI , HORIKOSHI KIYOMI , TAMAKI KIYOHIDE , UDAGAWA YOSHIO
IPC分类号： G01N29/04 , G01N29/11 , G01N29/22 , G01N29/44
摘要： PURPOSE:To perform correct flaw detection of a target region when the flow detection of a part beneath a welded part is performed at a 0.5 skip by setting a position where ultrasonic wave beams are transmitted and received and a gate which receives the ultrasonic wave beams from the position of the welded part of a steel pipe. CONSTITUTION:Ultrasonic wave beams 61-69 are transmitted in a sector scanning pattern by a command from a CPU 5 based on the flowing conditions: the outer diameter and the thickness of a steel pipe 11; the position and the inclination of a probe 1; and the setting of a desired incident angle. The beams 61-69 are propagated in the steel pipe 11 and a welded part 12. When there is a defect in the path, the beam is reflected at the defect and returned. The entire flaw detecting range of the beams 61-69 is divided into several ranges. A gate is provided in every flaw detecting range. The maximum echo height in each gate is computed in the CPU 5 among the ultrasonic wave beams which are set so as to reach each flaw detecting region and the ultrasonic wave beams in the vicinity of the region. When the beam exceeds the predetermined threshold value, it is judged that there is a defect in the part beneath the welded part 12.

6. 发明专利

JPH07286974A WETTABILITY MEASURING DEVICE AND METHOD 失效
公开(公告)号：JPH07286974A
公开(公告)日：1995-10-31
申请号：JP7773094
申请日：1994-04-18
申请人： TOSHIBA CORP
发明人： IDA AKISHI , UYAMA KIICHIRO , NISHIDE AKIHIKO , TAMAKI KIYOHIDE
IPC分类号： G01N23/04
摘要： PURPOSE:To provide a wettability measuring device and method which can measure the wettability adequately, by setting an adequate binarized threshold value to every divided area in a designated area, and carrying out an adequate binarizing process. CONSTITUTION:The X-ray 2 generated by an X-ray generating device 1 is radiated on a body to inspect 3, the X-ray permeating the inspected body 3 is detected by an X-ray image intensifier 5, and thereby, the permeation image of the detected body 3 is displayed on a monitor 7 through an image processing device 6. In the displayed permeation image of the inspected body 3, the attaching substance extending, area is designated, this area is divided into plural subareas, and to each subarea, an independent binarized threshold value is set, the picture element of each subarea is binarized, and by the binarized value of area, the wettability of the attaching substance extending area is evaluated.

7. 发明专利

JPH02240562A DISCRIMINATING METHOD FOR KIND AND SHAPE OF DETECT BY ELECTRONIC SCANNING TYPE ULTRASONIC FLOW DETECTION 失效
公开(公告)号：JPH02240562A
公开(公告)日：1990-09-25
申请号：JP6165289
申请日：1989-03-14
申请人： NIPPON KOKAN KK , TOSHIBA CORP
发明人： NISHIFUJI KATSUYUKI , KATOU HIROHARU , KOSUGE HIDEO , TAMAKI KIYOHIDE
IPC分类号： G01N29/04 , G01N29/22 , G01N29/44
摘要： PURPOSE:To discriminate a kind and a shape of a defect in a short time and with high reliability by deriving plural discrimination characteristic values for featuring a difference of reflection behaviors of each reflected wave from a defect obtained by an electronic scanning type ultrasonic flaw detection. CONSTITUTION:A pair of array probes 7A, 7B formed by placing linearly plural pieces of vibrators in positions of almost the same distance on a cross-cut are placed relatively by inserting and holding a defect 6 of a seam welded part 5 of a body to be inspected. In such a state, with respect to these probes 7A, 7B, a linear scanning is executed by switching the transmission and reception by a flaw detection refractive angle existing in one side each. That is, first of all, a reflected wave of the defect 6 obtained by following up transmission of an ultrasonic beam 8A is received by the probe 7A, and by a variation of the reflection behavior, a beam path of the reflected wave, a peak crest value and a sharpness evaluation of a waveform and a reflection directional pattern are extracted as discrimination characteristic values. Subsequently, the same scanning is performed by the other probe 7B, as well. By evaluating synthetically these discrimination characteristic values, the kind and a shape of the defect 6 can be decided easily.

8. 发明专利

JPH01239451A ULTRASONIC FLAW DETECTING METHOD 失效
公开(公告)号：JPH01239451A
公开(公告)日：1989-09-25
申请号：JP6653988
申请日：1988-03-18
申请人： NIPPON KOKAN KK , TOSHIBA CORP
发明人： KATOU HIROHARU , NISHIFUJI KATSUYUKI , TAMAKI KIYOHIDE , KOSUGE HIDEO
IPC分类号： G01N29/04 , G01N29/22 , G01N29/24 , G01N29/26 , G01N29/44
摘要： PURPOSE:To decide the kind of a defect with high sensitivity and high accuracy by making an ultrasonic wave beam incident continuously at a difference angle according to the combination of the transmission and reception delay times of the vibrators of an array probe, and finding the directivity of the defect from the angle of incidence and an echo signal. CONSTITUTION:The transmission and reception of the array probe 1 where (n) vibrators are arranged linearly are performed by a vibrator group selected by a transmission/reception controller 6 at the time set by a delay time controller 9. Echoes received by respective vibrators are adjusted in phase by the set time and the echo signal composed by a delay adder 10 is displayed on a waveform display device 12. Received echoes obtained at intervals of the incidence angle are inputted to a signal processor 13 and the directivity of the defect 5 is found from the relation between the incidence angle of the ultrasonic beam 4 and the signal. The defect 5 has the directivity corresponding to its shape and a pattern corresponding to the defect is obtained to easily decide the kind of the defect with the high sensitivity and high accuracy.

9. 发明专利

JPS6391554A METHOD AND APPARATUS FOR ULTRASONIC FLAW DETECTION OF WELDED PART IN STEEL PIPE 失效
公开(公告)号：JPS6391554A
公开(公告)日：1988-04-22
申请号：JP23772286
申请日：1986-10-06
申请人： NIPPON STEEL CORP , TOSHIBA CORP , KRAUTKRAEMER JAPAN
发明人： FUJIKAKE YOUICHI , SUGIMOTO TAKAO , TAMAKI KIYOHIDE , UDAGAWA YOSHIO
IPC分类号： G01N29/44 , G01N29/04 , G01N29/11 , G01N29/26 , G01N29/28
摘要： PURPOSE:To certainly inspect the flaw detection area of an object, by monitoring the variation of ultrasonic beam in the propagation direction thereof by a monitoring receiving probe and judging the ultrasonic beam reaching the flaw detection area of the object. CONSTITUTION:When the array type probe 1 coupled with water being a contact medium by a coupling device 10 is used to perform the flaw detection of the upper part of the welded part 12 of a steel pipe 11, ultrasonic beams 21...29 are transmitted to a wise range centring around a desired incident angle, which is set so that said beams reach the flaw detection area of an object, on the basis of the order of a computer 5 by sector scanning. A monitoring receiving probe 13 arranged in the vicinity of the welded part 12 to receive refracted ultrasonic beams 31...39 and the computer 5 operates to see how many beams reach the upper of the welded part 12 of the object from what location of beam and the flaw detection data due to the beams coinciding with the operation result are selected to inspect a flaw.

10. 发明专利

JPS54149491A X-ray generator 失效
标题翻译： XXRAY发电机
公开(公告)号：JPS54149491A
公开(公告)日：1979-11-22
申请号：JP5711178
申请日：1978-05-16
申请人： Toshiba Corp
发明人： TAMAKI KIYOHIDE
IPC分类号： H05G1/52
摘要： PURPOSE: To facilitate an insulation design by switching a filament for large focus and a filament for small focus of an X-ray tube by an optical switching element.
CONSTITUTION: Filament 24 for large forcus and filament 23 for small focus are connected to filament transformer 25 through optical switching element 26 and 27. When lamp L is lit, the SCR of circuit 26 becomes conductive by conduction of photodetector P, and an AC current is supplied to filament 24 through rectifier circuit D and the SCR. At this time, the SCR of circuit 27 becomes non-conductive, and no current is supplied to filament 23. When the lamp is extiguished, the current is supplied to filament 23 reversely. Thus, filaments are selected on a basis of optical signals by switching, so that only one transformer for filaments is required, and insulation design becomes easy.
COPYRIGHT: (C)1979,JPO&Japio
摘要翻译：目的：通过切换用于大焦点的灯丝和通过光学开关元件的X射线管的小焦点的灯丝来促进绝缘设计。构成：通过光开关元件26和27将用于小焦点的大型槽和灯丝23的灯丝24连接到灯丝变压器25.当灯L点亮时，电路26的SCR通过光电检测器P的导电而变为导通，并且AC电流通过整流电路D和SCR提供给灯丝24。此时，电路27的SCR变为不导通，并且没有电流供应到灯丝23.当灯熄灭时，电流反向地供应到灯丝23。因此，通过切换在光信号的基础上选择细丝，从而仅需要一根长丝用变压器，并且绝缘设计变得容易。

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