JPS5563775A - Distance measurement using ultrasonic wave - Google Patents

Distance measurement using ultrasonic wave

Info

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
Application number
JP13726878A
Other languages
Japanese (ja)
Inventor
Eiji Watabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Industries Ltd
Original Assignee
Koito Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koito Industries Ltd filed Critical Koito Industries Ltd
Priority to JP13726878A priority Critical patent/JPS5563775A/en
Publication of JPS5563775A publication Critical patent/JPS5563775A/en
Pending legal-status Critical Current

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.
JP13726878A 1978-11-09 1978-11-09 Distance measurement using ultrasonic wave Pending JPS5563775A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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