JPH02124578U - - Google Patents
Info
- Publication number
- JPH02124578U JPH02124578U JP3209289U JP3209289U JPH02124578U JP H02124578 U JPH02124578 U JP H02124578U JP 3209289 U JP3209289 U JP 3209289U JP 3209289 U JP3209289 U JP 3209289U JP H02124578 U JPH02124578 U JP H02124578U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- attenuation
- setting means
- transmission
- transducer
- 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
- 230000005540 biological transmission Effects 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035945 sensitivity Effects 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 |
|---|---|---|---|
| JP3209289U JPH02124578U (cs) | 1989-03-23 | 1989-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3209289U JPH02124578U (cs) | 1989-03-23 | 1989-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02124578U true JPH02124578U (cs) | 1990-10-15 |
Family
ID=31534965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3209289U Pending JPH02124578U (cs) | 1989-03-23 | 1989-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02124578U (cs) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5342592A (en) * | 1976-09-29 | 1978-04-18 | Seiko Instr & Electronics Ltd | Electrode construction of crystal oscillator |
| JPS60192278A (ja) * | 1984-03-12 | 1985-09-30 | Furuno Electric Co Ltd | 水中探知装置 |
-
1989
- 1989-03-23 JP JP3209289U patent/JPH02124578U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5342592A (en) * | 1976-09-29 | 1978-04-18 | Seiko Instr & Electronics Ltd | Electrode construction of crystal oscillator |
| JPS60192278A (ja) * | 1984-03-12 | 1985-09-30 | Furuno Electric Co Ltd | 水中探知装置 |
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