JPS6213632B2 - - Google Patents
Info
- Publication number
- JPS6213632B2 JPS6213632B2 JP463078A JP463078A JPS6213632B2 JP S6213632 B2 JPS6213632 B2 JP S6213632B2 JP 463078 A JP463078 A JP 463078A JP 463078 A JP463078 A JP 463078A JP S6213632 B2 JPS6213632 B2 JP S6213632B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- time width
- vehicle speed
- signal
- wave
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP463078A JPS5497471A (en) | 1978-01-18 | 1978-01-18 | Ultrasonic type vehicle speed measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP463078A JPS5497471A (en) | 1978-01-18 | 1978-01-18 | Ultrasonic type vehicle speed measuring apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5497471A JPS5497471A (en) | 1979-08-01 |
JPS6213632B2 true JPS6213632B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-03-27 |
Family
ID=11589332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP463078A Granted JPS5497471A (en) | 1978-01-18 | 1978-01-18 | Ultrasonic type vehicle speed measuring apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5497471A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951374A (ja) * | 1982-09-17 | 1984-03-24 | Furuno Electric Co Ltd | ドプラ−速度情報の直読計数装置 |
US4942558A (en) * | 1988-03-31 | 1990-07-17 | Micro-Trak Systems, Inc. | Ultrasonic velocity sensor |
-
1978
- 1978-01-18 JP JP463078A patent/JPS5497471A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5497471A (en) | 1979-08-01 |
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