JPH0441344Y2 - - Google Patents
Info
- Publication number
- JPH0441344Y2 JPH0441344Y2 JP19113687U JP19113687U JPH0441344Y2 JP H0441344 Y2 JPH0441344 Y2 JP H0441344Y2 JP 19113687 U JP19113687 U JP 19113687U JP 19113687 U JP19113687 U JP 19113687U JP H0441344 Y2 JPH0441344 Y2 JP H0441344Y2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- cover
- seawater
- receiving surface
- ultrasonic
- 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
- 239000013535 sea water Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000003373 anti-fouling effect Effects 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 7
- 230000009189 diving Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 241001474374 Blennius Species 0.000 description 2
- 241000238586 Cirripedia Species 0.000 description 2
- 241000237502 Ostreidae Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000020636 oyster Nutrition 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 241001125840 Coryphaenidae Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19113687U JPH0441344Y2 (en]) | 1987-12-16 | 1987-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19113687U JPH0441344Y2 (en]) | 1987-12-16 | 1987-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0195684U JPH0195684U (en]) | 1989-06-23 |
| JPH0441344Y2 true JPH0441344Y2 (en]) | 1992-09-29 |
Family
ID=31482062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19113687U Expired JPH0441344Y2 (en]) | 1987-12-16 | 1987-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441344Y2 (en]) |
-
1987
- 1987-12-16 JP JP19113687U patent/JPH0441344Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0195684U (en]) | 1989-06-23 |
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