JPH0548143Y2 - - Google Patents
Info
- Publication number
- JPH0548143Y2 JPH0548143Y2 JP6977987U JP6977987U JPH0548143Y2 JP H0548143 Y2 JPH0548143 Y2 JP H0548143Y2 JP 6977987 U JP6977987 U JP 6977987U JP 6977987 U JP6977987 U JP 6977987U JP H0548143 Y2 JPH0548143 Y2 JP H0548143Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- ultrasonic
- time
- detection
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 46
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000004913 activation Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000001629 suppression Effects 0.000 description 7
- 230000005764 inhibitory process Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 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 |
|---|---|---|---|
| JP6977987U JPH0548143Y2 (ru) | 1987-05-11 | 1987-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6977987U JPH0548143Y2 (ru) | 1987-05-11 | 1987-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63177779U JPS63177779U (ru) | 1988-11-17 |
| JPH0548143Y2 true JPH0548143Y2 (ru) | 1993-12-20 |
Family
ID=30910816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6977987U Expired - Lifetime JPH0548143Y2 (ru) | 1987-05-11 | 1987-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0548143Y2 (ru) |
-
1987
- 1987-05-11 JP JP6977987U patent/JPH0548143Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63177779U (ru) | 1988-11-17 |
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