MD730C2 - Piezoelectric transducer for nondestructive testing - Google Patents
Piezoelectric transducer for nondestructive testingInfo
- Publication number
- MD730C2 MD730C2 MD96-0200A MD960200A MD730C2 MD 730 C2 MD730 C2 MD 730C2 MD 960200 A MD960200 A MD 960200A MD 730 C2 MD730 C2 MD 730C2
- Authority
- MD
- Moldova
- Prior art keywords
- piezoplate
- strap
- ultrasonic
- wave drag
- piezoelectric transducer
- Prior art date
Links
Abstract
The invention relates to the ultrasonic nondestructive materials testing and may be applied for the high damping materials testing, with for example, the concrete.The purpose of the invention is the rise of the ultrasonic vibraion velocity test accuracy at the expense of the gauge length increase by rising the ultrasonic signals amplitude emitted and accepted into the tested article.The piezoelectric transducer includes a piezoplate 1 and, a protector 2 and a strap 3 connected with the piezoplate's converse surfaces and spaced into the frame 4. By that the strap is made of the wave drag material of 1,5 times more than the piezoplate wave drag material, and the thickness of the strap d is choosed from the proportions:,where h is the thickness of the piezoplate, but Vs, Vp is the ultrasonic vibration velocity into the strap and piezoplate materials accordingly.At the ultrasonic signal detection the signal, reflected from the piezoplate surface, connected with the strap, for the choosed wave drag meanings doesn't change the sign, that stipulates the amplitude increase of the half-cycle of the accepted signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD96-0200A MD730C2 (en) | 1983-04-08 | 1996-08-19 | Piezoelectric transducer for nondestructive testing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU833551743A SU1099270A1 (en) | 1983-04-08 | 1983-04-08 | Piezoelectric converter for non-destructive inspection |
| MD96-0200A MD730C2 (en) | 1983-04-08 | 1996-08-19 | Piezoelectric transducer for nondestructive testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD730F1 MD730F1 (en) | 1997-05-31 |
| MD730C2 true MD730C2 (en) | 1997-11-30 |
Family
ID=26640661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD96-0200A MD730C2 (en) | 1983-04-08 | 1996-08-19 | Piezoelectric transducer for nondestructive testing |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD730C2 (en) |
-
1996
- 1996-08-19 MD MD96-0200A patent/MD730C2/en active IP Right Grant
Non-Patent Citations (2)
| Title |
|---|
| Королев. Эхо-импульсные толщиномеры. 1980 г., "Машиностроение", М., с. 47-48. * |
| Приборы для неразрушающего контроля материалов и изделий. Справочник под редакцией В.В.Клюева, 1976 г., "Машиностроение", М., с. 179-180 (прототип). * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD730F1 (en) | 1997-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20030408 |