JPH0452694Y2 - - Google Patents
Info
- Publication number
- JPH0452694Y2 JPH0452694Y2 JP14179985U JP14179985U JPH0452694Y2 JP H0452694 Y2 JPH0452694 Y2 JP H0452694Y2 JP 14179985 U JP14179985 U JP 14179985U JP 14179985 U JP14179985 U JP 14179985U JP H0452694 Y2 JPH0452694 Y2 JP H0452694Y2
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- signal
- circuit
- wave
- transmitter
- 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
- 230000005540 biological transmission Effects 0.000 description 19
- 238000005259 measurement Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000009412 basement excavation Methods 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179985U JPH0452694Y2 (US07179912-20070220-C00144.png) | 1985-09-17 | 1985-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179985U JPH0452694Y2 (US07179912-20070220-C00144.png) | 1985-09-17 | 1985-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6249774U JPS6249774U (US07179912-20070220-C00144.png) | 1987-03-27 |
| JPH0452694Y2 true JPH0452694Y2 (US07179912-20070220-C00144.png) | 1992-12-10 |
Family
ID=31049921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14179985U Expired JPH0452694Y2 (US07179912-20070220-C00144.png) | 1985-09-17 | 1985-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0452694Y2 (US07179912-20070220-C00144.png) |
-
1985
- 1985-09-17 JP JP14179985U patent/JPH0452694Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6249774U (US07179912-20070220-C00144.png) | 1987-03-27 |
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