JPH11271288A - Device for ultrasonic measurement - Google Patents
Device for ultrasonic measurementInfo
- Publication number
- JPH11271288A JPH11271288A JP10095425A JP9542598A JPH11271288A JP H11271288 A JPH11271288 A JP H11271288A JP 10095425 A JP10095425 A JP 10095425A JP 9542598 A JP9542598 A JP 9542598A JP H11271288 A JPH11271288 A JP H11271288A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- measured
- measuring
- jig
- receiving means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、超音波伝搬特性の
測定に用いられる治具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig used for measuring ultrasonic wave propagation characteristics.
【０００２】[0002]
【従来技術および発明が解決しようとする課題】ケーブ
ルの被覆材には電気絶縁性などに優れる有機高分子材料
が用いられることが多いが、このような有機高分子材料
からなる被覆材は、熱、日光、放射線あるいはその他の
様々な要因によって経年劣化していく。劣化が進行する
とケーブルの電気絶縁性が低下するという問題があり、
また、停電などの事故が生じる可能性もある。2. Description of the Related Art An organic polymer material having excellent electric insulation and the like is often used as a coating material for a cable. Aging due to sunlight, radiation or various other factors. As the deterioration progresses, there is a problem that the electrical insulation of the cable decreases,
In addition, an accident such as a power outage may occur.
【０００３】そこで近年、ケーブル被覆材の劣化の診断
方法が種々研究されており、その診断方法の１つとして
超音波を用いてケーブル被覆材の非破壊劣化診断を行う
ことが提案されている。その一例として、特願平９−３
２０８６５には以下のような劣化診断方法が提案されて
いる。この方法はケーブル被覆材の外周表面近傍を伝搬
する超音波の伝搬特性によって劣化診断を行うものであ
って、超音波送信手段と超音波受信手段とをケーブル被
覆材表面に設置し、その設置間隔をＬ１、Ｌ２とした場
合の伝搬時間ｔ１、ｔ２をそれぞれ測定することによっ
て超音波伝搬特性を測定している。[0003] In recent years, various methods for diagnosing deterioration of a cable coating material have been studied, and it has been proposed to perform non-destructive deterioration diagnosis of a cable coating material using ultrasonic waves as one of the diagnostic methods. As an example, Japanese Patent Application No. Hei 9-3
20865 proposes the following deterioration diagnosis method. In this method, deterioration diagnosis is performed based on the propagation characteristics of ultrasonic waves propagating near the outer peripheral surface of the cable coating material. Ultrasonic transmission means and ultrasonic reception means are installed on the surface of the cable coating material, and the installation interval is set. The ultrasonic propagation characteristics are measured by measuring the propagation times t1 and t2 in the case where L1 and L2, respectively.
【０００４】本発明は、上記超音波伝搬特性の測定に用
いられる治具であって、より簡単かつ正確に測定するこ
とができる治具を提供するものである。[0004] The present invention provides a jig used for measuring the above-described ultrasonic wave propagation characteristics, which can more easily and accurately measure.
【０００５】[0005]
【課題を解決するための手段】本発明は、被測定物の表
面近傍を伝搬する超音波の伝搬特性を測定するための治
具であって、超音波送信手段と超音波受信手段とを同一
直線上に対向して設け、かつ、超音波送信手段及び／又
は超音波受信手段を該同一直線上を移動可能なように設
けたことを特徴とする超音波測定用治具によって、上記
課題を解決するものである。SUMMARY OF THE INVENTION The present invention is a jig for measuring the propagation characteristics of an ultrasonic wave propagating near the surface of an object to be measured, wherein the ultrasonic transmitting means and the ultrasonic receiving means are the same. The above object is achieved by an ultrasonic measurement jig provided so as to be opposed on a straight line, and provided with an ultrasonic transmission unit and / or an ultrasonic reception unit so as to be movable on the same straight line. Is the solution.
【０００６】本発明の治具は、超音波送信手段と超音波
受信手段とを同一直線上に対向して設けているため、送
信手段から送信された超音波を受信手段にて確実に受信
することができ、かつ、上記両手段のうち少なくともど
ちらか一方が該同一直線上を移動可能なように設けてい
るため、両手段の間の距離を変えての超音波伝搬時間の
測定を簡単に行うことができる。In the jig of the present invention, the ultrasonic transmitting means and the ultrasonic receiving means are provided on the same straight line so as to face each other, so that the ultrasonic waves transmitted from the transmitting means can be reliably received by the receiving means. And since at least one of the two means is provided so as to be movable on the same straight line, it is easy to measure the ultrasonic propagation time while changing the distance between the two means. It can be carried out.
【０００７】[0007]
【発明の実施の形態】本発明の治具の構造の一例を図１
に示す。以下、図１に基いて本発明の治具を説明する
が、本発明は図１に限定されるものではない。FIG. 1 shows an example of the structure of a jig of the present invention.
Shown in Hereinafter, the jig of the present invention will be described with reference to FIG. 1, but the present invention is not limited to FIG.
【０００８】本発明の治具は図１に示すように超音波送
信手段１と超音波受信手段２とを同一直線上に対向して
設けたものである。加えて、本発明の治具は超音波送信
手段１及び／又は超音波受信手段２を該同一直線上を移
動可能なように設けたものであって、図１ではその一例
として、送信手段１は固定し、受信手段２のみを移動可
能とした構造を図示している。つまり、図１において、
超音波送信手段１は送信手段取付具１１を介して、超音
波受信手段２は受信手段取付具２１を介して取付軸３に
それぞれ取り付けられており、受信手段取付具２１は取
付軸３上を移動可能に取り付けられている。受信手段１
及び受信手段取付具２１の移動には該取付具２１に連結
されたレバー２２によって行えばよい。As shown in FIG. 1, the jig of the present invention has an ultrasonic transmitting means 1 and an ultrasonic receiving means 2 provided on the same straight line so as to face each other. In addition, the jig of the present invention is provided with the ultrasonic transmitting means 1 and / or the ultrasonic receiving means 2 so as to be movable on the same straight line. In FIG. Shows a structure in which only the receiving means 2 can be moved while being fixed. That is, in FIG.
The ultrasonic transmitting means 1 is mounted on the mounting shaft 3 via the transmitting means mounting tool 11, and the ultrasonic receiving means 2 is mounted on the mounting shaft 3 via the receiving means mounting tool 21, respectively. Mounted movably. Receiving means 1
The movement of the receiving means attachment 21 may be performed by the lever 22 connected to the attachment 21.
【０００９】また本発明では、上記送信手段１及び／又
は受信手段２を移動させる場合にその移動距離を一定に
調整することができる移動距離調整手段を設けることが
好ましい。図１においては移動距離調整手段の一例とし
てロックナット４を図示する。つまり、図１においては
受信手段２を移動させる場合には常にロックナット４に
接する位置まで移動させることによって、その移動距離
を一定とすることができ、より簡単に超音波伝搬特性の
測定を行うことができる。移動距離調整手段の他の例と
しては例えば、ボールプランジャーなどを取り付けるこ
とによって受信手段２を一定位置で固定させることなど
が挙げられる。Further, in the present invention, it is preferable to provide a moving distance adjusting means capable of adjusting the moving distance when the transmitting means 1 and / or the receiving means 2 are moved. FIG. 1 illustrates the lock nut 4 as an example of the moving distance adjusting means. That is, in FIG. 1, when the receiving means 2 is moved, the moving distance can be made constant by always moving the receiving means 2 to a position in contact with the lock nut 4, and the ultrasonic wave propagation characteristics can be measured more easily. be able to. Another example of the moving distance adjusting means is to fix the receiving means 2 at a fixed position by attaching a ball plunger or the like.
【００１０】また本発明では、上記送信手段１及び／又
は受信手段２を移動させる場合にその移動距離を表示す
ることができる移動距離表示手段（図１には図示せず）
を設けることが好ましい。移動距離表示手段としては例
えば、目盛りを目視できるようにノギスを取り付けるこ
とや、移動距離測定手段を取り付け該手段と連動させた
デジタル表示部を取り付けることなどが挙げられる。本
発明においては、移動距離表示手段を設けることによっ
て、より正確に超音波伝搬特性の測定を行うことができ
る。また、ここで表示される移動距離は、治具からの超
音波の送信信号及び受信信号などを受け取って超音波伝
搬特性の測定を行う測定装置本体に、自動的に伝達され
るようになっていてもよい。Further, according to the present invention, when the transmitting means 1 and / or the receiving means 2 are moved, a moving distance display means (not shown in FIG. 1) capable of displaying the moving distance.
Is preferably provided. The moving distance display means includes, for example, attaching a vernier caliper so that the scale can be visually checked, attaching a moving distance measuring means, and attaching a digital display unit interlocked with the moving distance measuring means. In the present invention, the provision of the moving distance display means enables more accurate measurement of the ultrasonic wave propagation characteristics. Further, the moving distance displayed here is automatically transmitted to a measuring apparatus main body that receives a transmission signal and a reception signal of the ultrasonic wave from the jig and measures the ultrasonic wave propagation characteristics. You may.
【００１１】また本発明においては、支持台７を設け、
送信手段１及び受信手段２と該支持台７との間に被測定
物を挟み込んで把持できる把持手段を設けることが好ま
しい。 図１においては把持手段の一例としてネジリコ
イルバネ６を用いた把持手段の例を図示する。つまり、
図１においては支持台７は取付軸３を介して発信手段取
付具１１及び受信手段取付具２１に連結しており、支持
台７と発信手段取付具１１及び受信手段取付具２１と
は、取付軸３に嵌挿させたネジリコイルバネ６の力によ
って、両者の間で被測定物を把持できる構造となってい
る。In the present invention, a support 7 is provided,
It is preferable to provide a gripping means which can hold the object to be measured between the transmitting means 1 and the receiving means 2 and the support 7. FIG. 1 shows an example of a gripping means using a torsion coil spring 6 as an example of the gripping means. That is,
In FIG. 1, the support base 7 is connected to the transmitting means mounting tool 11 and the receiving means mounting tool 21 via the mounting shaft 3, and the support base 7 and the transmitting means mounting tool 11 and the receiving means mounting tool 21 are attached to each other. The structure is such that the object to be measured can be gripped between the two by the force of the torsion coil spring 6 fitted on the shaft 3.
【００１２】図１において被測定物の把持及び解放は、
発信手段取付具１１及び受信手段取付具２１に連結して
いるレバー１２、２２によって行えばよい。図１におい
ては、取付軸３が発信手段取付具１１と受信手段取付具
２１との間で一旦切断され、軸受５で連結されているた
め、送信手段１及び受信手段２による被測定物の把持及
び解放動作はそれぞれ個別に行うことができる。また、
図１の治具においては受信手段取付具２１の移動もレバ
ー２２によって行えるようになっているので、この場
合、超音波発信手段１は被測定物を把持したままの状態
で、超音波受信手段２では被測定物を解放し、移動後に
再び別の位置で被測定物を把持することができるという
利点がある。In FIG. 1, gripping and release of an object to be measured are as follows.
What is necessary is just to perform by the levers 12 and 22 connected with the transmitting means mounting tool 11 and the receiving means mounting tool 21. In FIG. 1, since the mounting shaft 3 is once cut between the transmitting means mounting tool 11 and the receiving means mounting tool 21 and is connected by the bearing 5, the transmission means 1 and the receiving means 2 grip the DUT. And the release operation can be performed individually. Also,
In the jig of FIG. 1, the receiving means mounting member 21 can be moved by the lever 22. In this case, the ultrasonic transmitting means 1 holds the object to be measured while the ultrasonic receiving means 21 is being held. 2 has an advantage that the object to be measured can be released and the object to be measured can be gripped again at another position after the movement.
【００１３】また、本発明においては、レバー１２、２
２を連動させて送信手段１及び受信手段２による被測定
物の把持及び解放動作を同時に行えるようにしてもよ
く、この場合は被測定物の取替えがし易いという利点が
ある。また、受信手段取付具における把持及び解放用レ
バーと移動用レバーとを別に設けてもよく、この場合は
より移動しやすいという利点がある。In the present invention, the levers 12, 2
2 may be linked to allow the transmitting means 1 and the receiving means 2 to simultaneously hold and release the object to be measured. In this case, there is an advantage that the object to be measured can be easily replaced. Further, a lever for holding and releasing and a lever for movement in the receiving means mounting tool may be separately provided, and in this case, there is an advantage that the movement is easier.
【００１４】また本発明においては、支持台７に被測定
物を一定位置に把持することができる固定溝７１を設け
ることが好ましい。固定溝７１の形状は被測定物の形状
に合わせて適宜設定すればよく、例えば被測定物が断面
円形の線状物である場合には固定溝７１を断面Ｖ字型に
することなどが挙げられる。In the present invention, it is preferable to provide a fixing groove 71 on the support table 7 for holding the object to be measured at a predetermined position. The shape of the fixing groove 71 may be appropriately set according to the shape of the object to be measured. For example, when the object to be measured is a linear object having a circular cross section, the fixing groove 71 may have a V-shaped cross section. Can be
【００１５】また本発明においては、超音波受信手段２
にて受信する超音波の波形を一定させる点から特に、被
測定物を一定の力で把持できるよう把持力調整手段を設
けることが好ましい。図１においては、把持手段として
ネジリコイルバネ６を用いているため、これが把持力調
整手段も兼ねており、同一の被測定物において超音波発
信手段１と超音波受信手段２との設置間隔を変えた前後
でも一定の力で被測定物を把持することができる。In the present invention, the ultrasonic receiving means 2
In particular, it is preferable to provide a gripping force adjusting means so that the object to be measured can be gripped with a constant force from the viewpoint of making the waveform of the ultrasonic wave received by the device constant. In FIG. 1, since the torsion coil spring 6 is used as the gripping means, it also serves as the gripping force adjusting means, and changes the installation interval between the ultrasonic transmitting means 1 and the ultrasonic receiving means 2 in the same object to be measured. The object to be measured can be gripped with a constant force even before and after.
【００１６】また本発明では、上記超音波測定用治具に
おいて、支持台などの被測定物と接する部分は電気的に
絶縁されていることが好ましい。電気的に絶縁されてい
ることによって、活線のケーブルなど通電時の導電性材
料についてもより安全に測定することができる。Further, in the present invention, it is preferable that, in the jig for ultrasonic measurement, a portion, such as a support table, in contact with an object to be measured is electrically insulated. By being electrically insulated, it is possible to more safely measure a conductive material during energization, such as a live cable.
【００１７】また、超音波伝搬特性の測定においては被
測定物の材質によって、超音波送信手段１及び超音波受
信手段２を取り替えることが好ましいため、本発明では
超音波送信手段１及び超音波受信手段２は取り外し可能
となっていることが好ましい。図１では超音波送信手段
１及び超音波受信手段２はそれぞれ送信手段取付具１１
及び受信手段取付具２１に固定ネジ１３によって取り付
けられているため、取り外し可能となっている。In the measurement of the ultrasonic wave propagation characteristics, it is preferable to replace the ultrasonic wave transmitting means 1 and the ultrasonic wave receiving means 2 depending on the material of the object to be measured. The means 2 is preferably removable. In FIG. 1, the ultrasonic transmitting means 1 and the ultrasonic receiving means 2 are respectively provided with a transmitting means mounting member 11.
Also, since it is attached to the receiving means attaching tool 21 with the fixing screw 13, it can be removed.
【００１８】また、超音波伝搬特性の測定においては、
被測定物の温度によって伝搬特性が多少変化するため、
被測定物の温度を計測して温度補正を行うことが好まし
い。そのため、治具には被測定物の温度を計測できるよ
う温度計測手段（図示せず）を設けることが好ましい。
温度計測手段の設置位置は治具において被測定物に接す
る位置であれば特に制限はない。温度計測手段にて計測
された温度は、治具にて温度表示手段を設けて表示させ
てもよく、また、治具からの超音波の送信信号及び受信
信号などを受け取って超音波伝搬特性の測定を行う測定
装置本体に、自動的に伝達されるようになっていてもよ
い。In the measurement of the ultrasonic wave propagation characteristics,
Since the propagation characteristics change slightly depending on the temperature of the DUT,
It is preferable to perform temperature correction by measuring the temperature of the device under test. Therefore, the jig is preferably provided with a temperature measuring means (not shown) so as to measure the temperature of the object to be measured.
The installation position of the temperature measuring means is not particularly limited as long as the position is in contact with the measured object in the jig. The temperature measured by the temperature measuring means may be displayed by providing a temperature display means with a jig, or receiving a transmission signal and a reception signal of the ultrasonic wave from the jig and measuring the ultrasonic propagation characteristics. The information may be automatically transmitted to the measuring device main body that performs the measurement.
【００１９】本発明の治具は、被測定物の表面近傍を伝
搬する超音波の伝搬特性を測定するためのものであっ
て、この測定は、超音波送信手段１と超音波受信手段２
とを被測定物表面に設置し、その設置間隔をＬ１、Ｌ２
とした場合の伝搬時間ｔ１、ｔ２をそれぞれ測定するこ
とによって行われる。The jig of the present invention is for measuring the propagation characteristics of ultrasonic waves propagating in the vicinity of the surface of the object to be measured.
Are placed on the surface of the object to be measured, and the intervals between the
Is performed by measuring the propagation times t1 and t2 respectively.
【００２０】[0020]
【発明の効果】本発明の超音波測定用治具は、被測定物
の表面近傍を伝搬する超音波の伝搬特性を測定するため
の治具であって、超音波送信手段と超音波受信手段とを
同一直線上に対向して設け、かつ、超音波送信手段及び
／又は超音波受信手段を該同一直線上を移動可能なよう
に設けたことによって、送信手段から送信された超音波
を受信手段にて確実に受信することができ、かつ、両手
段の間の距離を変えての超音波伝搬時間の測定を簡単に
行うことができる。よって、簡単かつ正確に超音波伝搬
特性の測定を行うことができる。また、送信手段及び／
又は受信手段の移動距離を一定に調整することができる
移動距離調整手段をさらに設けたことによって、より簡
単かつ正確超音波伝搬特性の測定を行うことができる。
また、上記移動距離を表示することができる移動距離表
示手段をさらに設けたことによって、より簡単かつ正確
に超音波伝搬特性の測定を行うことができる。また、さ
らに支持台を設け、送信手段及び受信手段と該支持台と
の間に被測定物を挟み込んで把持できる把持手段をさら
に設けたことによって、より簡単かつ正確に超音波伝搬
特性の測定を行うことができる。また、被測定物を一定
位置に把持することができる固定溝を支持台に設けたこ
とによって、より簡単かつ正確に超音波伝搬特性の測定
を行うことができる。また、被測定物を一定の力で把持
できるよう把持力調整手段をさらに設けたことによっ
て、より簡単かつ正確に超音波伝搬特性の測定を行うこ
とができる。また、被測定物と接する部分が電気的に絶
縁されていることによって、通電時の導電性材料につい
てもより安全に測定することができる。また、超音波送
信手段及び超音波受信手段は取り外し可能となっている
ことによって、様々な材質の被測定物について測定可能
となる。また、被測定物の温度を計測できるよう温度計
測手段をさらに設けたことによって、より簡単かつ正確
に超音波伝搬特性の測定を行うことができる。The jig for ultrasonic measurement according to the present invention is a jig for measuring the propagation characteristics of an ultrasonic wave propagating near the surface of an object to be measured, the ultrasonic transmission means and the ultrasonic reception means. Are provided so as to face each other on the same straight line, and the ultrasonic transmitting means and / or the ultrasonic receiving means are provided so as to be movable on the same straight line, so that the ultrasonic waves transmitted from the transmitting means can be received. The ultrasonic wave propagation time can be easily measured by changing the distance between the two means. Therefore, it is possible to easily and accurately measure the ultrasonic wave propagation characteristics. Transmission means and / or
Alternatively, by further providing a moving distance adjusting means capable of adjusting the moving distance of the receiving means to a constant value, it is possible to more simply and accurately measure the ultrasonic wave propagation characteristics.
In addition, the provision of the moving distance display means capable of displaying the moving distance further facilitates and accurately measures the ultrasonic wave propagation characteristics. Further, by further providing a support, and by further providing a gripping means capable of holding the object to be measured between the transmitting means and the receiving means and the support, and more easily and accurately measuring the ultrasonic wave propagation characteristics. It can be carried out. In addition, the provision of the fixing groove on the support table, which can hold the object to be measured at a predetermined position, allows the ultrasonic wave propagation characteristics to be measured more easily and accurately. Further, the provision of the gripping force adjusting means for gripping the object to be measured with a constant force makes it possible to more easily and accurately measure the ultrasonic wave propagation characteristics. Further, since the portion in contact with the object to be measured is electrically insulated, the conductive material during energization can be measured more safely. In addition, since the ultrasonic transmitting means and the ultrasonic receiving means are detachable, it is possible to measure an object to be measured of various materials. Further, the provision of the temperature measurement means so as to measure the temperature of the object to be measured makes it possible to more easily and accurately measure the ultrasonic wave propagation characteristics.
【図１】本発明の超音波測定治具の構造の一例を示す。FIG. 1 shows an example of the structure of an ultrasonic measurement jig of the present invention.
１：超音波発信手段 １１：発信手段取付具 １２：レバー １３：固定ネジ ２：超音波受信手段 ２１：受信手段取付具 ２２：レバー ３：取付軸 ４：ロックナット ５：軸受 ６：ネジリコイルバネ ７：支持台 ７１：固定溝 1: Ultrasonic transmission means 11: Transmission means attachment 12: Lever 13: Fixing screw 2: Ultrasonic reception means 21: Receiving means attachment 22: Lever 3: Mounting shaft 4: Lock nut 5: Bearing 6: Torsion coil spring 7 ： Support 71 ： Fixed groove
───────────────────────────────────────────────────── フロントページの続き (72)発明者 池田 毅 兵庫県尼崎市東向島西之町８番地 三菱電 線工業株式会社 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takeshi Ikeda 8 Nishinocho, Higashimukaijima, Amagasaki City, Hyogo Prefecture Mitsubishi Electric Wire & Cable Co., Ltd.
Claims (9)
伝搬特性を測定するための治具であって、超音波送信手
段と超音波受信手段とを同一直線上に対向して設け、か
つ、超音波送信手段及び／又は超音波受信手段を該同一
直線上を移動可能なように設けたことを特徴とする超音
波測定用治具。1. A jig for measuring propagation characteristics of an ultrasonic wave propagating near the surface of an object to be measured, wherein a jig for ultrasonic transmission and an ultrasonic reception unit are provided on the same straight line so as to face each other. An ultrasonic measuring jig, wherein an ultrasonic transmitting unit and / or an ultrasonic receiving unit are provided so as to be movable on the same straight line.
移動距離を一定に調整することができる移動距離調整手
段を設けた請求項１記載の超音波測定用治具。2. The ultrasonic measuring jig according to claim 1, further comprising a moving distance adjusting means capable of adjusting a moving distance of the transmitting means and / or the receiving means to a constant value.
できる移動距離表示手段を設けた請求項１または請求項
２記載の超音波測定用治具。3. The ultrasonic measuring jig according to claim 1, further comprising a moving distance display means capable of displaying the moving distance.
手段と該支持台との間に被測定物を挟み込んで把持でき
る把持手段を設けた請求項１〜３いずれかに記載の超音
波測定用治具。4. The ultrasonic measurement according to claim 1, further comprising a support table, and holding means for holding the object to be measured between the transmission means and the reception means and the support table. Jig.
ことができる固定溝を支持台に設けた請求項１〜４いず
れかに超音波測定用治具。5. The ultrasonic measurement jig according to claim 1, further comprising a fixing groove provided on the support table, the fixing groove being capable of gripping an object to be measured at a predetermined position.
るよう把持力調整手段を設けた請求項１〜５いずれかに
超音波測定用治具。6. The ultrasonic measurement jig according to claim 1, further comprising a gripping force adjusting means for gripping an object to be measured with a constant force.
れている請求項１〜６いずれかに超音波測定用治具。7. The ultrasonic measurement jig according to claim 1, wherein a portion in contact with the object to be measured is electrically insulated.
り外し可能となっている請求項１〜７いずれかに超音波
測定用治具。8. The ultrasonic measuring jig according to claim 1, wherein said ultrasonic transmitting means and said ultrasonic receiving means are detachable.
う温度計測手段を設けた請求項１〜８いずれかに超音波
測定用治具。9. The ultrasonic measuring jig according to claim 1, further comprising a temperature measuring means for measuring a temperature of the object to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095425A JPH11271288A (en) | 1998-03-23 | 1998-03-23 | Device for ultrasonic measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095425A JPH11271288A (en) | 1998-03-23 | 1998-03-23 | Device for ultrasonic measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11271288A true JPH11271288A (en) | 1999-10-05 |
Family
ID=14137350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10095425A Pending JPH11271288A (en) | 1998-03-23 | 1998-03-23 | Device for ultrasonic measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11271288A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001194350A (en) * | 2000-01-07 | 2001-07-19 | Mitsubishi Cable Ind Ltd | Ultrasonic degradation diagnostic apparatus for low voltage electric cable for railway facilities |
| JP2002162389A (en) * | 2000-11-27 | 2002-06-07 | Mitsubishi Cable Ind Ltd | Ultrasonic wave degradation diagnosing device for low- voltage electric-wire cable for nuclear power station |
| CN102095806A (en) * | 2010-12-01 | 2011-06-15 | 南京市计量监督检测院 | Nonmetal ultrasonic detector verification system |
| CN103995056A (en) * | 2014-05-14 | 2014-08-20 | 国核电站运行服务技术有限公司 | Axial acoustic velocity measurement clamp and device for cable sheath |
| JP2020046214A (en) * | 2018-09-14 | 2020-03-26 | 株式会社横河ブリッジ | Measurement point projection system, measurement jig, and measurement point projection method |
-
1998
- 1998-03-23 JP JP10095425A patent/JPH11271288A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001194350A (en) * | 2000-01-07 | 2001-07-19 | Mitsubishi Cable Ind Ltd | Ultrasonic degradation diagnostic apparatus for low voltage electric cable for railway facilities |
| JP2002162389A (en) * | 2000-11-27 | 2002-06-07 | Mitsubishi Cable Ind Ltd | Ultrasonic wave degradation diagnosing device for low- voltage electric-wire cable for nuclear power station |
| CN102095806A (en) * | 2010-12-01 | 2011-06-15 | 南京市计量监督检测院 | Nonmetal ultrasonic detector verification system |
| CN103995056A (en) * | 2014-05-14 | 2014-08-20 | 国核电站运行服务技术有限公司 | Axial acoustic velocity measurement clamp and device for cable sheath |
| JP2020046214A (en) * | 2018-09-14 | 2020-03-26 | 株式会社横河ブリッジ | Measurement point projection system, measurement jig, and measurement point projection method |
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