JPH0443257U - - Google Patents
Info
- Publication number
- JPH0443257U JPH0443257U JP8441490U JP8441490U JPH0443257U JP H0443257 U JPH0443257 U JP H0443257U JP 8441490 U JP8441490 U JP 8441490U JP 8441490 U JP8441490 U JP 8441490U JP H0443257 U JPH0443257 U JP H0443257U
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- ultrasonic
- voltage
- level
- comparator
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第１図は本考案の１実施例に係る探傷装置のブ
ロツク図であり、第２図は探傷信号の欠陥反射波
にノイズが重畳した波形図であり、第３図はゲー
トタイミング信号にて、ゲートを通過した欠陥反
射波形図であり、第４図は探傷信号のタイミング
図であり、第５図は本考案の実施例に係るタイミ
ング図である。
FIG. 1 is a block diagram of a flaw detection apparatus according to an embodiment of the present invention, FIG. 2 is a waveform diagram in which noise is superimposed on the defect reflection wave of the flaw detection signal, and FIG. FIG. 4 is a timing diagram of a flaw detection signal, and FIG. 5 is a timing diagram of an embodiment of the present invention.
Claims (1)
波トランスデユーサの発射した超音波の反射波パ
ルスを周波数−電圧変換回路でパルス数に応じて
増加する電圧に変換し、その出力を比較器で基準
レベルと比較してそのレベルを越えた信号を検出
信号として出力して欠陥の検出を行うことを特徴
とする超音波探傷装置。 A frequency-voltage conversion circuit converts the reflected wave pulses of the ultrasonic wave emitted by the ultrasonic transducer due to a defect passing through a preset gate into a voltage that increases according to the number of pulses, and the output is converted to a reference level by a comparator. An ultrasonic flaw detection device that detects defects by outputting a signal exceeding that level as a detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8441490U JPH089642Y2 (en) | 1990-08-09 | 1990-08-09 | Ultrasonic flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8441490U JPH089642Y2 (en) | 1990-08-09 | 1990-08-09 | Ultrasonic flaw detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0443257U true JPH0443257U (en) | 1992-04-13 |
| JPH089642Y2 JPH089642Y2 (en) | 1996-03-21 |
Family
ID=31632884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8441490U Expired - Lifetime JPH089642Y2 (en) | 1990-08-09 | 1990-08-09 | Ultrasonic flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089642Y2 (en) |
-
1990
- 1990-08-09 JP JP8441490U patent/JPH089642Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089642Y2 (en) | 1996-03-21 |
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