JPS5563775A - Distance measurement using ultrasonic wave - Google Patents
Distance measurement using ultrasonic waveInfo
- Publication number
- JPS5563775A JPS5563775A JP13726878A JP13726878A JPS5563775A JP S5563775 A JPS5563775 A JP S5563775A JP 13726878 A JP13726878 A JP 13726878A JP 13726878 A JP13726878 A JP 13726878A JP S5563775 A JPS5563775 A JP S5563775A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic wave
- amplifier
- receiving
- distance measurement
- peak
- 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
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
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/12—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
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)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To provide an accurate measurement by a method wherein a compression amplifier is used to control a large variation in the receiving level and clock pulse counting is used to obtain the period from the transmission of ultrasonic wave to the generation of peak in the received signal. CONSTITUTION:A compression amplifier CA having a logarithmic compression characteristics, for example, is inserted in the output side of the receiving amplifier RA in the receiving system. The received signal is suppressed in its level variation and fed in the peak detector PD, which generates output corresponding to the peak value. The calculator circuit AC, controlled by this output, provides output corresponding to the distance to the object to be determined.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13726878A JPS5563775A (en) | 1978-11-09 | 1978-11-09 | Distance measurement using ultrasonic wave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13726878A JPS5563775A (en) | 1978-11-09 | 1978-11-09 | Distance measurement using ultrasonic wave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563775A true JPS5563775A (en) | 1980-05-14 |
Family
ID=15194693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13726878A Pending JPS5563775A (en) | 1978-11-09 | 1978-11-09 | Distance measurement using ultrasonic wave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563775A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57160676U (en) * | 1981-04-01 | 1982-10-08 | ||
JPS6333681A (en) * | 1986-07-29 | 1988-02-13 | Fuji Electric Co Ltd | Compensation of temperature characteristics |
US4741108A (en) * | 1985-12-13 | 1988-05-03 | Logistics Data Systems, Inc. | Measurement system |
US5385050A (en) * | 1992-04-07 | 1995-01-31 | Northrop Grumman Corporation | Gap measurement for shim manufacture |
US5493786A (en) * | 1995-01-09 | 1996-02-27 | Thomson; Christopher S. | Real estate electro tape |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5137862A (en) * | 1974-09-27 | 1976-03-30 | Nippon Kokan Kk | KOIRUSEISEISHOTSUPU |
JPS5217851A (en) * | 1975-08-01 | 1977-02-10 | Hitachi Ltd | Super sonic transfer time measurement device |
-
1978
- 1978-11-09 JP JP13726878A patent/JPS5563775A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5137862A (en) * | 1974-09-27 | 1976-03-30 | Nippon Kokan Kk | KOIRUSEISEISHOTSUPU |
JPS5217851A (en) * | 1975-08-01 | 1977-02-10 | Hitachi Ltd | Super sonic transfer time measurement device |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57160676U (en) * | 1981-04-01 | 1982-10-08 | ||
US4741108A (en) * | 1985-12-13 | 1988-05-03 | Logistics Data Systems, Inc. | Measurement system |
JPS6333681A (en) * | 1986-07-29 | 1988-02-13 | Fuji Electric Co Ltd | Compensation of temperature characteristics |
JPH0478951B2 (en) * | 1986-07-29 | 1992-12-14 | Fuji Electric Co Ltd | |
US5385050A (en) * | 1992-04-07 | 1995-01-31 | Northrop Grumman Corporation | Gap measurement for shim manufacture |
US5493786A (en) * | 1995-01-09 | 1996-02-27 | Thomson; Christopher S. | Real estate electro tape |
USRE36257E (en) * | 1995-01-09 | 1999-07-27 | Thomson; Christopher S. | Laser optical measuring apparatus |
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