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1. 发明申请

WO1986006486A1 METHOD OF MEASURING ANGLE OF INCLINATION OF PLANAR FLAW IN SOLID OBJECT WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量固体物体中平面FLAW的角度的方法
公开(公告)号：WO1986006486A1
公开(公告)日：1986-11-06
申请号：PCT/JP1985000225
申请日：1985-04-22
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi , OSHIRO, Takayuki
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/04
CPC分类号： G01N29/4427 , G01N29/0645 , G01N29/11 , G01N29/265 , G01N2291/044 , G01N2291/2632
摘要： Method of measuring an angle of inclination of a planar flaw mainly crops out of the surface of a solid object, by utilizing an ultrasonic wave. An angle of inclination of a planar flaw is measured by using as evaluation indexes, the inclination of the envelope of echoes which is obtained from each beam path of an ultrasonic wave applied to the planar flaw in the solid object while scanning with a probe in the longitudinal direction, and the echo height of the wave reflected from the planar flaw and received in accordance with the beam paths. Consequently, the angle of inclination of the planar flaw, which occurs in a part or a member of an electric or mechanical apparatus can be measured non-destructively, accurately, easily, in a short period of time and during real time by using a single probe.

2. 发明申请

WO1989001138A1 METHOD OF MEASURING CONTACT STRESS WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量接触应力的方法
公开(公告)号：WO1989001138A1
公开(公告)日：1989-02-09
申请号：PCT/JP1987000564
申请日：1987-07-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L01/00
CPC分类号： G01L1/255
摘要： This invention relates to a method of measuring contact stress on a contact surface of a thin sheet (mainly up 2 to 3 mm thick) in contact with other solid by utilizing a sheet wave available in one of the ultra-sonic modes. A probe is brought into contact with the thin sheet, an ultrasonic wave is projected to the thin sheet from the probe to generate the sheet wave, the resulting sheet wave is propagated through the thin sheet and passed through the contact surface and the contact stress is measured by use of the sound pressure of the passing sheet wave as an index of evaluation. It becomes thus possible to measure the contact stress between the thin sheet and other solid, which has been measured conventionally only by dipping the thin sheet into a liquid tank, without using the liquid tank, both statically and dynamically, quantitatively, rapidly and moreover on a real time basis.
摘要翻译：本发明涉及一种通过利用超声波模式之一提供的薄片波，来测量与其它固体接触的薄片（主要是2至3mm厚）的接触表面上的接触应力的方法。探针与薄片接触，超声波从探针投射到薄片上以产生薄片波，所得薄片波通过薄片传播通过接触表面，接触应力为通过使用通过的纸张波的声压作为评价指标来测量。因此，可以测量薄片和其它固体之间的接触应力，其通常仅通过将薄片浸入液体罐中而不使用液体仓即时静态和动态地定量地快速地进行测量，而且在一个实时的基础。

3. 发明申请

WO1988009931A1 METHOD OF MEASURING DEPTH OF SURFACE OPENING DEFECTS OF A SOLID MATERIAL BY USING ULTRASONIC WAVES 审中-公开
标题翻译：使用超声波测量固体材料表面缺陷的方法
公开(公告)号：WO1988009931A1
公开(公告)日：1988-12-15
申请号：PCT/JP1987000358
申请日：1987-06-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/04
CPC分类号： G01N29/11 , G01N29/0618 , G01N29/07 , G01N29/2487 , G01N29/30 , G01N29/40 , G01N29/4445 , G01N2291/02854 , G01N2291/0421 , G01N2291/0422 , G01N2291/044 , G01N2291/056 , G01N2291/101
摘要： This invention is related to a method of measuring the depth of surface opening defects of a solid material by utilizing chiefly ultrasonic waves. Ultrasonic waves are permitted to fall on the surface opening defects while being scanned with a probe back and forth and a threshold value of a predetermined level is set onto an echo envelope that is formed by the echoes of ultrasonic waves reflected depending upon the moving positions of the probe from the surface opening defects. The region that exceeds the threshold value is integrated for a range in which the probe has moved in said region, and the depth of the surface opening defects is measured with the area value of the region calculated by integration as an evaluation index. This makes it possible to measure the depth of cracks in the welded portion or the depth of surface opening defects such as cracks of the member caused by fatigue in a portion where the stress concentrates, non-destructively, easily, highly precisely and in real time.

4. 发明申请

WO1987002462A1 ULTRASONIC METHOD OF MEASURING DIMENSIONS OF FLAW IN SOLID MATERIAL 审中-公开
标题翻译：超声波测量固体材料尺寸的超声波测量方法
公开(公告)号：WO1987002462A1
公开(公告)日：1987-04-23
申请号：PCT/JP1985000562
申请日：1985-10-11
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD , MIYAJIMA, Takeshi , OGURA, Yukio , TOMITA, Sadahisa
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD
IPC分类号： G01N29/04
CPC分类号： G01N29/48 , G01N29/0645 , G01N29/07 , G01N29/11 , G01N29/30 , G01N29/4427 , G01N2291/02491 , G01N2291/0289 , G01N2291/044
摘要： Method of measuring dimensions of a flaw in a solid material by utilizing the ultrasonic waves, comprising steps of applying ultrasonic waves via a liquid to an object surface of a solid material, comparing sound pressure of a reflected wave from the object surface with that of a reflected wave from a flaw in the solid material, and determining the dimensions of the flaw by using the comparison value as an evaluation index. This method is capable of measuring the dimensions of a flaw in a part or a member of an electrical and mechanical apparatus nondestructively, accurately and quantitatively with ease in a very short period of time.

5. 发明申请

WO1986004414A1 METHOD OF MEASURING STRESS CONCENTRATION COEFFICIENT WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量应力集中系数的方法
公开(公告)号：WO1986004414A1
公开(公告)日：1986-07-31
申请号：PCT/JP1985000013
申请日：1985-01-16
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/00
CPC分类号： G01N29/11 , G01N29/227 , G01N2291/02872
摘要： A method for measuring a stress concentration coefficient in a stress concentrated portion of a member by utilizing an ultrasonic wave, which method comprises the steps of introducing the ultrasonic wave to the stress concentrated portion of the member having the stress concentrated portion in a load state, increasing or decreasing the sound pressure of a reflected wave of the ultrasonic wave from the concentrated portion and the stress in the load state, comparing the sound pressure of the reflected wave from the concentrated portion in the increased or decreased stress state, and measuring the stress concentration coefficient with the rate of change of the sound pressure of the reflected wave as an evaluation index, thereby measuring the coefficient in the concentrated portion of the member for forming a machine in static and dynamic states non-destructively, readily, quantitatively and accurately in real time.

6. 发明申请

WO1983003470A1 METHOD OF MEASURING CONTACT STRESS OF CONTACTING SOLID SURFACES WITH ULTRASONIC WAVES 审中-公开
标题翻译：用超声波测量接触固体表面的接触应力的方法
公开(公告)号：WO1983003470A1
公开(公告)日：1983-10-13
申请号：PCT/JP1982000087
申请日：1982-03-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , OGURA, Yukio , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L05/00
CPC分类号： G01N29/043 , G01L1/255 , G01N2291/02827 , G01N2291/02872 , G01N2291/0421
摘要： Un procédé de mesure de la tension de contact à la surface adjacente (4) de solides de type similaire ou différent en utilisant des ondes ultrasoniques consiste à transmettre les ondes ultrasoniques aux surfaces adjacentes (4), à comparer la pression ultrasonique des ondes réfléchies par la surface adjacente (4) avec la pression des ondes qui se propagent à travers la surface adjacente (4), et à mesurer la tension de contact en utilisant la valeur comparée comme indice d'estimation. Ce procédé permet de mesurer de façon simple, non-destructive, quantitative et précise la tension de contact entre les surfaces adjacentes de parties ou d'organes composant une machine ou autres à l'arrêt et en fonctionnement.

7. 发明申请

WO1986007452A1 METHOD OF MEASURING CONTACT STRESS IN CONTACT SURFACE BETWEEN SOLIDS BY ULTRASONIC WAVE 审中-公开
标题翻译：通过超声波测量固体接触表面的接触应力的方法
公开(公告)号：WO1986007452A1
公开(公告)日：1986-12-18
申请号：PCT/JP1985000336
申请日：1985-06-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi , OGURA, Yukio , SUZUKI, Yoshiaki , TOMITA, Sadahisa
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L01/00
CPC分类号： G01N29/227 , G01L1/255 , G01N29/041 , G01N29/0645 , G01N2291/015 , G01N2291/02827 , G01N2291/02872 , G01N2291/0421 , G01N2291/0422 , G01N2291/102 , G01N2291/2632
摘要： A method of measuring the contact stress in a contact surface (1) between solids of the same or different kinds by utilizing an ultrasonic wave, consisting of the steps of applying a surface wave to the contact surface (1) from the side of one end thereof so as to introduce the surface wave to the side of the other end of the contact surface (1) therethrough, and determining the contact stress on the basis of the sound pressure of this passed wave as an evaluation index, whereby the contact stress in the contact surface between the parts or members of a machine, which are in the static and dynamic state, can be measured non-destructively, easily, quantitatively, and very accurately by a real-time operation without being influenced by the shape, sizes and roughness of a surface to be flaw-detected, contact surface and bottom surface.

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