JPS5759159A - Untrasonic angle beam flaw detection method - Google Patents
Untrasonic angle beam flaw detection methodInfo
- Publication number
- JPS5759159A JPS5759159A JP55133026A JP13302680A JPS5759159A JP S5759159 A JPS5759159 A JP S5759159A JP 55133026 A JP55133026 A JP 55133026A JP 13302680 A JP13302680 A JP 13302680A JP S5759159 A JPS5759159 A JP S5759159A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- flaw detection
- circuit
- sensitivity
- 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
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
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/40—Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
Landscapes
- Physics & Mathematics (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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE:To compensate the sensitivity fluctuations of flaw detection signals automatically by receiving the reflected echoes within a resin wedge, and controlling an AGC circuit by the signal which is the result of the prescribed operation. CONSTITUTION:The pulses from a transmission and reception part 11 are reflected by the bottom surface of a resin wedge 2 and the surface of a specimen 4 via a vibrator 1 for transmission and reception, and are received as an echo 8 in a vibrator 3 for monitoring. They are also applied via a contact medium 6 into the specimen 4 and the beam reflected from a detect 5 is received in the vibrator 1. The output of the vibrator 3 is fed via a reception part 12 to an arithmetic circuit 13. The arithmetic expressions expressing the fluctuating relations of the signal of the echo 8 and flaw detection sensitivity are beforehand set in the circuit 13 by using test pieces and the like, and the results of th prescribed operations in accordance with these are applied to an AGC circuit 14 to control its operation. As a result, the AGC circuit 14 is automatically compensated of sensitivity and the defect signal is applied to a monitor 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133026A JPS5759159A (en) | 1980-09-26 | 1980-09-26 | Untrasonic angle beam flaw detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133026A JPS5759159A (en) | 1980-09-26 | 1980-09-26 | Untrasonic angle beam flaw detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5759159A true JPS5759159A (en) | 1982-04-09 |
Family
ID=15095055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55133026A Pending JPS5759159A (en) | 1980-09-26 | 1980-09-26 | Untrasonic angle beam flaw detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5759159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198248A1 (en) * | 2021-03-24 | 2022-09-29 | Ac2T Research Gmbh | Device for determining chemico-physical properties in a tribological system |
-
1980
- 1980-09-26 JP JP55133026A patent/JPS5759159A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198248A1 (en) * | 2021-03-24 | 2022-09-29 | Ac2T Research Gmbh | Device for determining chemico-physical properties in a tribological system |
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