JPH0146037B2 - - Google Patents

Info

Publication number
JPH0146037B2
JPH0146037B2 JP57206786A JP20678682A JPH0146037B2 JP H0146037 B2 JPH0146037 B2 JP H0146037B2 JP 57206786 A JP57206786 A JP 57206786A JP 20678682 A JP20678682 A JP 20678682A JP H0146037 B2 JPH0146037 B2 JP H0146037B2
Authority
JP
Japan
Prior art keywords
time
threshold level
output
ultrasonic
waveform
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
Application number
JP57206786A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5997069A (ja
Inventor
Haruto Tanaka
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP20678682A priority Critical patent/JPS5997069A/ja
Publication of JPS5997069A publication Critical patent/JPS5997069A/ja
Publication of JPH0146037B2 publication Critical patent/JPH0146037B2/ja
Granted 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
    • G01S15/88—Sonar systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP20678682A 1982-11-25 1982-11-25 超音波式車高測定装置 Granted JPS5997069A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20678682A JPS5997069A (ja) 1982-11-25 1982-11-25 超音波式車高測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20678682A JPS5997069A (ja) 1982-11-25 1982-11-25 超音波式車高測定装置

Publications (2)

Publication Number Publication Date
JPS5997069A JPS5997069A (ja) 1984-06-04
JPH0146037B2 true JPH0146037B2 (pm) 1989-10-05

Family

ID=16529066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20678682A Granted JPS5997069A (ja) 1982-11-25 1982-11-25 超音波式車高測定装置

Country Status (1)

Country Link
JP (1) JPS5997069A (pm)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60146172A (ja) * 1984-01-11 1985-08-01 Kubota Ltd 非接触式測距装置
JPS614986A (ja) * 1984-06-20 1986-01-10 Nissan Motor Co Ltd 超音波距離測定装置
JPS6267481A (ja) * 1985-09-20 1987-03-27 Matsushita Electric Ind Co Ltd 洗濯機の超音波式距離装置
JPS6446317A (en) * 1987-08-14 1989-02-20 Nec Corp Counter circuit
US5603556A (en) * 1995-11-20 1997-02-18 Technical Services And Marketing, Inc. Rail car load sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439156A (en) * 1977-09-02 1979-03-26 Nippon Soken Distance measuring device loaded on car

Also Published As

Publication number Publication date
JPS5997069A (ja) 1984-06-04

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