JPH01141462U - - Google Patents
Info
- Publication number
- JPH01141462U JPH01141462U JP3815488U JP3815488U JPH01141462U JP H01141462 U JPH01141462 U JP H01141462U JP 3815488 U JP3815488 U JP 3815488U JP 3815488 U JP3815488 U JP 3815488U JP H01141462 U JPH01141462 U JP H01141462U
- Authority
- JP
- Japan
- Prior art keywords
- flaw
- flaw detector
- detection
- signal
- terminal signal
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本案装置のブロツク図、第２図はその
動作説明のためのタイムチヤート、第３図は演算
装置の処理手順を示すフローチヤート、第４図は
先端に口絞り部を有する管の模式図、第５図は従
来装置の模式図、第６図は従来装置の動作説明の
ためのタイムチヤートである。
４……探傷コイル、７……探傷信号処理回路、
８……探傷装置本体、７ａ，８ａ……演算装置、
９……遅延回路、１１，１２……フオトセンサ。
Fig. 1 is a block diagram of the proposed device, Fig. 2 is a time chart for explaining its operation, Fig. 3 is a flowchart showing the processing procedure of the arithmetic unit, and Fig. 4 is a diagram of a tube having a constricted portion at its tip. FIG. 5 is a schematic diagram of a conventional device, and FIG. 6 is a time chart for explaining the operation of the conventional device. 4...Flaw detection coil, 7...Flaw detection signal processing circuit,
8... flaw detection device main body, 7a, 8a... calculation device,
9...Delay circuit, 11, 12...Photo sensor.
Claims (1)
り被探傷物の先、後端が探傷器を通過する際に出
力する信号を無効化すべくなしてある探傷装置に
おいて、 前記探傷器よりも前記搬送経路の上流側に配さ
れた被探傷物の先、後端通過を検出する管端検知
器と、該管端検知器の検知信号に基づき先、後端
の移動速度を算出する移動速度算出手段と、 管端検知器の被探傷物の先、後端検知信号及び
移動速度算出手段が算出した移動速度に基づいて
定めた時間後に、探傷器から入力された信号が所
定条件を満足する場合に該信号を先、後端通過に
起因する端末信号であると判定する端末信号検出
手段と、 探傷器出力を遅延させる遅延回路と、 前記端末信号検出手段の先端の端末信号の終了
の検出から後端の端末信号の開始の検出までの探
傷器出力を有効とする探傷信号処理手段と を具備することを特徴とする探傷装置。[Scope of claim for utility model registration] A flaw detection device in which the main body of the flaw detector faces the transport path of the object to be tested, and is designed to nullify the signals output when the front and rear ends of the object to be tested pass through the flaw detector. The apparatus includes: a tube end detector arranged upstream of the transport route than the flaw detector to detect passage of the leading and trailing ends of the object to be tested; a moving speed calculating means for calculating the moving speed of the flaw detector; a terminal signal detecting means for determining that the signal is a terminal signal caused by passing the first and second ends when the signal satisfies a predetermined condition; a delay circuit for delaying the output of the flaw detector; A flaw detection apparatus comprising flaw detection signal processing means for validating flaw detector output from detection of the end of a terminal signal at the leading end to detection of the start of a terminal signal at the trailing end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3815488U JPH01141462U (en) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3815488U JPH01141462U (en) | 1988-03-22 | 1988-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141462U true JPH01141462U (en) | 1989-09-28 |
Family
ID=31264720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3815488U Pending JPH01141462U (en) | 1988-03-22 | 1988-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141462U (en) |
-
1988
- 1988-03-22 JP JP3815488U patent/JPH01141462U/ja active Pending
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