JPS5660343A - Ae monitor device - Google Patents
Ae monitor deviceInfo
- Publication number
- JPS5660343A JPS5660343A JP13624779A JP13624779A JPS5660343A JP S5660343 A JPS5660343 A JP S5660343A JP 13624779 A JP13624779 A JP 13624779A JP 13624779 A JP13624779 A JP 13624779A JP S5660343 A JPS5660343 A JP S5660343A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- orientation
- time difference
- wave generation
- generation position
- 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
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To prevent oversight of defects of a material to be checked and erroneous position orientation, by measuring the time difference between AE wave signals discriminated in the same level.
CONSTITUTION: Respective receiving signals dependent upon AE sensors 1 and 2 become binary signals P1WP5 and Q1WQ5 in the event pulse generating circuit and are led to time difference measuring circuits 5aW5e and become pulse signals R1W R4 corresponding to times T1WT4 of both signals, and the clock signal is counted during respective pulse width to measure time differences T1WT4 and, position orientation operating circuit 8 orientates the AE wave generation position on a basis of values of these time differences. Next, distribution cumulative counter 9 extracts only the maximum point of distribution of the orientated position, namely, the AE wave generation position orientation signal measured on a basis of time difference T1 (T1=T3=T4). Consequently, the normal AE wave generation position is displayed on display 10, and orientation of erroneous positions is prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13624779A JPS5660343A (en) | 1979-10-22 | 1979-10-22 | Ae monitor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13624779A JPS5660343A (en) | 1979-10-22 | 1979-10-22 | Ae monitor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5660343A true JPS5660343A (en) | 1981-05-25 |
Family
ID=15170720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13624779A Pending JPS5660343A (en) | 1979-10-22 | 1979-10-22 | Ae monitor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5660343A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0630790U (en) * | 1993-07-22 | 1994-04-22 | 株式会社クボタ | Distance measuring device for reaper |
-
1979
- 1979-10-22 JP JP13624779A patent/JPS5660343A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0630790U (en) * | 1993-07-22 | 1994-04-22 | 株式会社クボタ | Distance measuring device for reaper |
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