JPH0449593Y2 - - Google Patents
Info
- Publication number
- JPH0449593Y2 JPH0449593Y2 JP873388U JP873388U JPH0449593Y2 JP H0449593 Y2 JPH0449593 Y2 JP H0449593Y2 JP 873388 U JP873388 U JP 873388U JP 873388 U JP873388 U JP 873388U JP H0449593 Y2 JPH0449593 Y2 JP H0449593Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- semiconductor
- capacitor
- ultrasonic
- pulse
- 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.)
- Expired
Links
- 239000004065 semiconductor Substances 0.000 claims description 34
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP873388U JPH0449593Y2 (zh) | 1988-01-26 | 1988-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP873388U JPH0449593Y2 (zh) | 1988-01-26 | 1988-01-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01117784U JPH01117784U (zh) | 1989-08-09 |
| JPH0449593Y2 true JPH0449593Y2 (zh) | 1992-11-20 |
Family
ID=31214868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP873388U Expired JPH0449593Y2 (zh) | 1988-01-26 | 1988-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449593Y2 (zh) |
-
1988
- 1988-01-26 JP JP873388U patent/JPH0449593Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01117784U (zh) | 1989-08-09 |
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