JPS61170655A - Electromagnetic ultrasonic probe - Google Patents
Electromagnetic ultrasonic probeInfo
- Publication number
- JPS61170655A JPS61170655A JP60010895A JP1089585A JPS61170655A JP S61170655 A JPS61170655 A JP S61170655A JP 60010895 A JP60010895 A JP 60010895A JP 1089585 A JP1089585 A JP 1089585A JP S61170655 A JPS61170655 A JP S61170655A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- electrode
- probe
- electromagnetic ultrasonic
- attached
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は電磁超音波の送信又は受信を行なう電磁超音波
探触子に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an electromagnetic ultrasound probe that transmits or receives electromagnetic ultrasound.
従来の電磁超音波探触子は特開昭５３−１０７７号、特
開昭５３−１０７８号公報に記載のように印刷回路技術
によシ精密小型で安価な送受信コイルを製作する方法や
、特開昭５８−２７４１号、あるいは、特開昭５８−２
７４４号公報に記載のように探触子の特性を改善するた
めの送受信コイルの巻装方法、あるいは、実装方法につ
いて開示されているが、これらの従来技術は送受信コイ
ルを容易に交換できるような方法、すなわち、探触子の
保守性を考慮した送受信コイルの実装技術の問題を認識
していない。Conventional electromagnetic ultrasonic probes have been developed using printed circuit technology, as described in JP-A-53-1077 and JP-A-53-1078, to produce precision, small, and inexpensive transmitting/receiving coils. Publication No. 58-2741 or Japanese Patent Publication No. 58-2
As described in Japanese Patent No. 744, a method for winding or mounting a transmitter/receiver coil in order to improve the characteristics of a probe is disclosed, but these conventional techniques do not allow easy replacement of the transmitter/receiver coil. In other words, they are not aware of the problems with the mounting technology of the transmitter/receiver coil in consideration of the maintainability of the probe.
本発明の目的は送受信コ・ｆルが断線等の破損によシ交
換の必要が生じた場合に容易に送受信コイルの交換が出
来る電磁超音波探触子を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an electromagnetic ultrasonic probe in which the transmitting/receiving coil can be easily replaced when the transmitting/receiving coil needs to be replaced due to breakage or other damage.
磁性体被検材の肉厚、欠陥等を電磁超音波厚さ計、又は
、探傷器で計測しようとする場合、第２図に示すように
、電磁超音波探触子内には被検材１に靜磁界を発生させ
るための直流ＩＬｌｉ！１石２が入っており、計測の際
、探触子の鉄心３，４と被検材１０間には強力な吸引力
が働く。又、電ｆｆｌ超音波の送信、受信効率を向上さ
せるには、送受信コイル５を出来るだけ被検材１に近づ
けた方がよい。When trying to measure the thickness, defects, etc. of a magnetic material to be tested using an electromagnetic ultrasonic thickness gauge or flaw detector, as shown in Figure 2, the material to be tested is placed inside the electromagnetic ultrasonic probe. DC ILli to generate a silent magnetic field in 1! 1 stone 2 is contained, and a strong suction force acts between the probe cores 3 and 4 and the test material 10 during measurement. Furthermore, in order to improve the transmission and reception efficiency of electric ffl ultrasonic waves, it is better to place the transmitter/receiver coil 5 as close to the specimen 1 as possible.
このため、絶縁材でできた送受信コイル５の保護カバー
６の厚さは極力薄くする必要があ゛る。、（通常１１Ｉ
ＩＩ以下）
従って、例えば、石油タンクの減肉計測を行なう場合被
検材１０表面には突起物があったり、溶接のスパッター
等の異物が散乱している場合が多条ある。この様な突起
物、あるいは、異物を探触子の保護カバー６と被検材１
の間にはさみ込んだ場合、前述のように、探触子の鉄心
３．４と被検材１の間には強力な吸引力が働くため、送
受信コイル５は異物、突起物によシ断線してしまう。
。Therefore, the thickness of the protective cover 6 of the transmitting/receiving coil 5 made of an insulating material must be made as thin as possible. , (usually 11I
Therefore, for example, when measuring the thinning of an oil tank, the surface of the test material 10 may have protrusions or many foreign objects such as welding spatter. Remove such protrusions or foreign objects from the probe protective cover 6 and the test material 1.
If the probe is sandwiched between the two, as described above, a strong attraction force will be exerted between the probe core 3.4 and the test material 1, and the transmitter/receiver coil 5 will be disconnected by foreign objects or protrusions. Resulting in.
.
送受信コイルが断線等によシ破損した場合、送受信コイ
ルとリード線が一体化しているため、探触子を分解して
リード線ごと送受信コイルを交換する必要があり、作業
性が悪く、又、熟練を要している。このため、容易に送
受信コイルを交換することの出来る保守性にすぐれた探
触子が強く要求されている。If the transmitter/receiver coil is damaged due to wire breakage, etc., since the transmitter/receiver coil and lead wire are integrated, it is necessary to disassemble the probe and replace the transmitter/receiver coil together with the lead wire, which is difficult to work with, and It requires skill. For this reason, there is a strong demand for a probe with excellent maintainability that allows easy replacement of the transmitting and receiving coils.
以下、本発明の一実施例を第１図、第３図ないし第７図
によシ説明する。Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 1, 3 to 7.
まず、第１図によシ探触子全体の構成を説明すると、探
触子外極３と内極４の間に直流電磁石コイル２を設け、
内極４の下端に絶縁板１０を介して送受信コイル５が装
着されており、送受信コイル５は絶縁材の保護カバー６
により内極４に押しつけられている。更Ｋ、送受信コイ
ル５の両端にはピンコンタクト９ａ、９ｂが取り付けら
れておシ、内極４の底面に取シ付けられたソケットコン
タクト８ａ、８ｂを介して、内極４に設けたリード溝７
ａ、７ｂを通ったリード線１１ａ、ｌｌｂに接続されて
いる。この様な構成の探触子で、ソケットコンタクト８
ａ、８ｂは、第５図に示すように、外面が絶縁カバー１
４で覆われておシ、内極４に対し電気的に絶縁されてい
る。又、送受信コイル５は第３図、第４図に示すように
、絶縁板１２上に写真製版された導体１３の両端にビン
コンタク）９ａ、９ｂが半田付されており、それぞれ、
ソケットコンタクト８ａ、８ｂに差し込むようになって
いる。又、この導体１３は絶縁板１０により内極４より
電気的に絶縁されている。又、リード線１１ａ、１１ｂ
４絶縁被覆を被っておシ、内極４よシミ気的に絶縁され
ており、更に、リード線１１ａ、ｌｌｂの一端はそれぞ
れソケットコンタク）８ａ、８ｂＫ接続されておシ、他
端は記載されていない電磁超音波送受信装置に接続され
ている。第５図にソケットコンタクト、第６図にピンコ
ンタクト、第７図にこれらピンコンタクト、ソケットコ
ンタクトの結合状態の詳細図を示す。First, the overall structure of the probe will be explained with reference to FIG. 1. A DC electromagnetic coil 2 is provided between the outer pole 3 and the inner pole 4 of the probe.
A transmitting/receiving coil 5 is attached to the lower end of the inner pole 4 via an insulating plate 10, and the transmitting/receiving coil 5 is attached to a protective cover 6 made of an insulating material.
is pressed against the inner pole 4 by. Additionally, pin contacts 9a and 9b are attached to both ends of the transmitter/receiver coil 5, and lead grooves provided in the inner pole 4 are connected via socket contacts 8a and 8b attached to the bottom of the inner pole 4. 7
It is connected to lead wires 11a and llb passing through a and 7b. With a probe configured like this, socket contact 8
a, 8b, the outer surface is the insulating cover 1, as shown in FIG.
4 and is electrically insulated from the inner electrode 4. Further, as shown in FIGS. 3 and 4, the transmitting/receiving coil 5 has pin contacts 9a and 9b soldered to both ends of a conductor 13 photoengraved on an insulating plate 12, respectively.
It is designed to be inserted into socket contacts 8a and 8b. Further, this conductor 13 is electrically insulated from the inner pole 4 by an insulating plate 10. Also, the lead wires 11a, 11b
The lead wires 11a and 11b are covered with an insulating coating and are electrically insulated from the inner pole 4, and one end of the lead wires 11a and llb are connected to socket contacts 8a and 8b, respectively, and the other end is not shown. Not connected to an electromagnetic ultrasonic transceiver device. FIG. 5 shows a socket contact, FIG. 6 shows a pin contact, and FIG. 7 shows a detailed view of the combined state of these pin contacts and socket contacts.
ソケットコンタクト８には絶縁カバー１４が被せられて
おシ、上部にリード線締付部１５が設けられておシ、こ
の部分で第７図に示すように、リード線１１が締付けら
れている。The socket contact 8 is covered with an insulating cover 14, and a lead wire tightening portion 15 is provided at the upper portion, and the lead wire 11 is tightened at this portion as shown in FIG.
ピンコンタクト９とソケットコンタクト８間の接触は、
ソケットコンタクト８に設けられた複数の接触片８′の
弾性力によシ、多数回の着脱に際しても安定した接触状
態を保持することができるつ〔発明の効果〕
本発明によれば、探触子の送受信コイルを交換する必要
が生じたときは、送受信コイルを保護カバーごとソケッ
トから引きぬくだけで、簡単、がっ、迅速に新しい送受
信コイルと交換することができる。The contact between pin contact 9 and socket contact 8 is
Due to the elastic force of the plurality of contact pieces 8' provided on the socket contact 8, a stable contact state can be maintained even when the socket contact 8 is attached and detached many times. When it becomes necessary to replace the transmitter/receiver coil of the child, simply pull out the transmitter/receiver coil along with its protective cover from the socket, and you can easily and quickly replace it with a new transmitter/receiver coil.
第１図は本発明の一実施例の電磁超音波探触子の縦断面
図、第２図は従来のｔａ超音波探触子の縦断面図、第３
図は送受信コイルの平面図、第４図は送受信コイルの側
面図、第５図はソケットコンタクト詳細図、第６図はピ
ンコンタクト詳細図、第７図はソケットコンタクトとピ
ンコンタクトの結合状態詳細図である。FIG. 1 is a longitudinal sectional view of an electromagnetic ultrasound probe according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a conventional TA ultrasound probe, and FIG. 3 is a longitudinal sectional view of a conventional TA ultrasound probe.
The figure is a plan view of the transmitter/receiver coil, Figure 4 is a side view of the transmitter/receiver coil, Figure 5 is a detailed diagram of the socket contact, Figure 6 is a detailed diagram of the pin contact, and Figure 7 is a detailed diagram of the combined state of the socket contact and pin contact. It is.
Claims (1)
イルを、前記ピンコンタクトに対応するソケットコンタ
クトを取付けた鉄心に装着することを特徴とする電磁超
音波探触子。1. An electromagnetic ultrasonic probe characterized in that an electromagnetic ultrasonic transmitting/receiving coil with pin contacts at both ends is attached to an iron core having socket contacts corresponding to the pin contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010895A JPS61170655A (en) | 1985-01-25 | 1985-01-25 | Electromagnetic ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010895A JPS61170655A (en) | 1985-01-25 | 1985-01-25 | Electromagnetic ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61170655A true JPS61170655A (en) | 1986-08-01 |
Family
ID=11763039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60010895A Pending JPS61170655A (en) | 1985-01-25 | 1985-01-25 | Electromagnetic ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2679406A1 (en) * | 1991-07-18 | 1993-01-22 | Mannesmann Ag | ULTRASONIC ELECTRODYNAMIC TRANSDUCER. |
-
1985
- 1985-01-25 JP JP60010895A patent/JPS61170655A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2679406A1 (en) * | 1991-07-18 | 1993-01-22 | Mannesmann Ag | ULTRASONIC ELECTRODYNAMIC TRANSDUCER. |
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