JPS6046478A - Distance measuring device - Google Patents

Distance measuring device

Info

Publication number
JPS6046478A
JPS6046478A JP15447383A JP15447383A JPS6046478A JP S6046478 A JPS6046478 A JP S6046478A JP 15447383 A JP15447383 A JP 15447383A JP 15447383 A JP15447383 A JP 15447383A JP S6046478 A JPS6046478 A JP S6046478A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
signal
hold
1h
1i
ultrasonic 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.)
Pending
Application number
JP15447383A
Inventor
Shigeyuki Akita
Hiroaki Tanaka
Original Assignee
Nippon Soken Inc
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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • G01S15/10Systems for measuring distance only using transmission of interrupted pulse-modulated waves
    • G01S15/101Particularities of the measurement of distance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps, of tanks; Tyre cooling arrangements
    • B60C23/06Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/066Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel-centre to ground distance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps, of tanks; Tyre cooling arrangements
    • B60C23/06Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/067Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring chassis to ground distance

Abstract

PURPOSE:To measure accurate distance through a simple ciruit with an ultrasonic wave pulse by sampling and holding a receive signal at every oscillation period, comparing two successive signals to decide the arrival time point of a reflected wave when the signal comparison is reduced. CONSTITUTION:An ultrasonic wave pulse radiated by an ultrasonic wave oscillator 11 is reflected by a target to enter a receiver 12. The receive signal is inputted to the 1st sample-and-hold circuit 103 to hold the maximum in every oscillation period with an analog switch 103A successively, and it is outputted from an amplifier 103B as a hold signal 1h. The signal 1h is held in a holding circuit 104 as the 2nd hold signal 1i elasping a specific time after sampling timing. The signals 1h and 1i are compared with each other by a comparing circuit 105, which outputs a peak detection signal when the signal 1i becomes larger to measure the time of reflected wave arrival.
JP15447383A 1983-08-24 1983-08-24 Distance measuring device Pending JPS6046478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15447383A JPS6046478A (en) 1983-08-24 1983-08-24 Distance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15447383A JPS6046478A (en) 1983-08-24 1983-08-24 Distance measuring device

Publications (1)

Publication Number Publication Date
JPS6046478A true true JPS6046478A (en) 1985-03-13

Family

ID=15585015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15447383A Pending JPS6046478A (en) 1983-08-24 1983-08-24 Distance measuring device

Country Status (1)

Country Link
JP (1) JPS6046478A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977778A (en) * 1986-10-29 1990-12-18 Movats Incorporated Check valve testing system
US5154080A (en) * 1986-10-29 1992-10-13 Westinghouse Electric Corp. Integrated check valve testing system
US5159835A (en) * 1986-10-29 1992-11-03 Westinghouse Electric Corp. Check valve testing system
JP2008532845A (en) * 2005-03-14 2008-08-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh Apparatus for status detection of the tire provided in the wheel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977778A (en) * 1986-10-29 1990-12-18 Movats Incorporated Check valve testing system
US5154080A (en) * 1986-10-29 1992-10-13 Westinghouse Electric Corp. Integrated check valve testing system
US5159835A (en) * 1986-10-29 1992-11-03 Westinghouse Electric Corp. Check valve testing system
JP2008532845A (en) * 2005-03-14 2008-08-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh Apparatus for status detection of the tire provided in the wheel

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