JPH0147722B2 - - Google Patents

Info

Publication number
JPH0147722B2
JPH0147722B2 JP6995781A JP6995781A JPH0147722B2 JP H0147722 B2 JPH0147722 B2 JP H0147722B2 JP 6995781 A JP6995781 A JP 6995781A JP 6995781 A JP6995781 A JP 6995781A JP H0147722 B2 JPH0147722 B2 JP H0147722B2
Authority
JP
Japan
Prior art keywords
distance
road surface
signal
circuit
vehicle
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
JP6995781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57184912A (en
Inventor
Tadashi Tsuda
Seiichiro Hiramatsu
Takeshi Maeno
Mitsugi Ootsuka
Yoji Ito
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP6995781A priority Critical patent/JPS57184912A/ja
Publication of JPS57184912A publication Critical patent/JPS57184912A/ja
Publication of JPH0147722B2 publication Critical patent/JPH0147722B2/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)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
JP6995781A 1981-05-08 1981-05-08 Detector for condition of road surface Granted JPS57184912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6995781A JPS57184912A (en) 1981-05-08 1981-05-08 Detector for condition of road surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6995781A JPS57184912A (en) 1981-05-08 1981-05-08 Detector for condition of road surface

Publications (2)

Publication Number Publication Date
JPS57184912A JPS57184912A (en) 1982-11-13
JPH0147722B2 true JPH0147722B2 (en]) 1989-10-16

Family

ID=13417636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6995781A Granted JPS57184912A (en) 1981-05-08 1981-05-08 Detector for condition of road surface

Country Status (1)

Country Link
JP (1) JPS57184912A (en])

Also Published As

Publication number Publication date
JPS57184912A (en) 1982-11-13

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