JPS5832460U - Acoustic emission measuring device - Google Patents
Acoustic emission measuring deviceInfo
- Publication number
- JPS5832460U JPS5832460U JP12612681U JP12612681U JPS5832460U JP S5832460 U JPS5832460 U JP S5832460U JP 12612681 U JP12612681 U JP 12612681U JP 12612681 U JP12612681 U JP 12612681U JP S5832460 U JPS5832460 U JP S5832460U
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- measuring device
- acoustic emission
- predetermined value
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の実施例の構成を示す図、第２図ない
し第４図はこの実施例の作用を説明するためのタイムチ
ャートである。
１Ａ、 ｌＢ・・・・・・電気−音響変換素子、５Ａ
、 ５Ｂ・・・・・・弁別およびパルス発生回路、６
・・・・・・−数構出回路、７・・・・・・リセッ［・
用ゲート回路、８・・・・・・ピークホールダー、９・
・・・・・入出力装置、１０・・・・・・中央処理装置
（ｃｐｕ）、１１・・・・・・試験片、１２・・・・・
・計測領域。FIG. 1 is a diagram showing the configuration of an embodiment of this invention, and FIGS. 2 to 4 are time charts for explaining the operation of this embodiment. 1A, 1B...Electro-acoustic conversion element, 5A
, 5B...Discrimination and pulse generation circuit, 6
・・・・・・−Number structure output circuit, 7・・・・・・Reset [・
gate circuit, 8...Peak holder, 9.
...Input/output device, 10...Central processing unit (CPU), 11...Test piece, 12...
・Measurement area.
Claims (1)
その２個の音響−電気変換素子のうちどちらか一方の出
力が所定値以上であるときその出力のピーク値を記憶す
る記憶手段と、その２個の音響−電気変換素子のうちど
ちらか一方の出力が所定値以上のときに時間Ｔ遅延した
第１のパルスを出力する第１の回路手段と、上記２個の
音響−電気変換素子の残り一方の出力が所定値以上のと
きに時間２Ｔの時間幅の出力を発する第２の回路手段と
、上記第１の回路手段の出力と上記第２の回路手段の出
力の重なりを検出する第１の論理積回路と、上記第１の
回路手段の出力と上記第１の論理積回路の否定出力が一
致したことを検出する第２の論理積回路とを有し、上記
第１の回路手段の出力と上記第１の論理積回路の否定出
力が一致したとき上記記憶手段の記憶内容がリセットさ
れるよう構成されたアコースティック・エミッション計
測装置。Two acoustic-electric conversion elements attached to two points on the test piece,
storage means for storing the peak value of the output when the output of one of the two acousto-electric transducers is equal to or higher than a predetermined value; a first circuit means that outputs a first pulse delayed by a time T when the output is a predetermined value or more; and a first circuit means that outputs a first pulse delayed by a time T when the output is a predetermined value or more; a first AND circuit for detecting an overlap between the output of the first circuit means and the output of the second circuit means; a second AND circuit for detecting that the output of the first AND circuit matches the NOT output of the first AND circuit; An acoustic emission measuring device configured to reset the stored contents of the storage means when they match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12612681U JPS5832460U (en) | 1981-08-26 | 1981-08-26 | Acoustic emission measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12612681U JPS5832460U (en) | 1981-08-26 | 1981-08-26 | Acoustic emission measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832460U true JPS5832460U (en) | 1983-03-03 |
| JPH0142038Y2 JPH0142038Y2 (en) | 1989-12-11 |
Family
ID=29919928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12612681U Granted JPS5832460U (en) | 1981-08-26 | 1981-08-26 | Acoustic emission measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016524153A (en) * | 2013-06-27 | 2016-08-12 | ドレッサ、インク | System and method for filtering noise from acoustic energy from a valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50159384A (en) * | 1974-06-12 | 1975-12-23 | ||
| JPS5331186U (en) * | 1976-08-23 | 1978-03-17 |
-
1981
- 1981-08-26 JP JP12612681U patent/JPS5832460U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50159384A (en) * | 1974-06-12 | 1975-12-23 | ||
| JPS5331186U (en) * | 1976-08-23 | 1978-03-17 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016524153A (en) * | 2013-06-27 | 2016-08-12 | ドレッサ、インク | System and method for filtering noise from acoustic energy from a valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0142038Y2 (en) | 1989-12-11 |
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