JPS5784375A - Failure detector for supersonic device - Google Patents

Failure detector for supersonic device

Info

Publication number
JPS5784375A
JPS5784375A JP16098080A JP16098080A JPS5784375A JP S5784375 A JPS5784375 A JP S5784375A JP 16098080 A JP16098080 A JP 16098080A JP 16098080 A JP16098080 A JP 16098080A JP S5784375 A JPS5784375 A JP S5784375A
Authority
JP
Japan
Prior art keywords
supersonic
gate
output
pulse generator
pulse
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
JP16098080A
Other languages
Japanese (ja)
Inventor
Tadashi Tsuda
Seiichirou Hiramatsu
Takeshi Maeno
Mitsugi Otsuka
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 JP16098080A priority Critical patent/JPS5784375A/en
Priority to US06/321,226 priority patent/US4482889A/en
Publication of JPS5784375A publication Critical patent/JPS5784375A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To permit a supersonic device to confirm its own operation by itself by detecting attenuation oscillation which occurs after pulse excitation in a supersonic wave transmitter or receiver. CONSTITUTION:A supersonic pulse generator 1 gives a supersonic wave transmitter 2 supersonic pulses making carrier waves in the form of pulses. The supersonic transmitter 2 issues the supersonic pulses generated by the pulse generator 1. A level discriminator 3 effects the level discrimination for an attenuation level at the time immediately after excitation of the supersonic pulse in the wave transmitter. Output of the discriminator 3 is fed to an AND gate 5 together with output from a gate pulse generator 4. An alarm 6 is operated by output from the AND gate 5.
JP16098080A 1980-11-14 1980-11-14 Failure detector for supersonic device Pending JPS5784375A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16098080A JPS5784375A (en) 1980-11-14 1980-11-14 Failure detector for supersonic device
US06/321,226 US4482889A (en) 1980-11-14 1981-11-13 Device for detecting failure of ultrasonic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16098080A JPS5784375A (en) 1980-11-14 1980-11-14 Failure detector for supersonic device

Publications (1)

Publication Number Publication Date
JPS5784375A true JPS5784375A (en) 1982-05-26

Family

ID=15726278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16098080A Pending JPS5784375A (en) 1980-11-14 1980-11-14 Failure detector for supersonic device

Country Status (1)

Country Link
JP (1) JPS5784375A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136697A2 (en) * 1983-10-03 1985-04-10 Nissan Motor Co., Ltd. Ultrasonic vehicle rangefinder
JPS61234695A (en) * 1985-04-10 1986-10-18 Matsushita Electric Works Ltd Ultrasonic detector
US4677599A (en) * 1984-06-20 1987-06-30 Nissan Motor Company, Limited Ultra-sonic distance measuring apparatus and method
US4739860A (en) * 1984-05-29 1988-04-26 Nissan Motor Co., Ltd. Ultrasonic rangefinder
US4796911A (en) * 1983-09-09 1989-01-10 Nissan Motor Company, Ltd. Automotive suspension system with roll-stabilizer having road condition-dependent torsion modulus, and control of torsional modules
US4886291A (en) * 1984-06-06 1989-12-12 Nissan Motor Company, Limited Fail-safe system for automotive suspension control system
JPH02195286A (en) * 1989-01-24 1990-08-01 Matsushita Electric Works Ltd Ultrasonic detector

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796911A (en) * 1983-09-09 1989-01-10 Nissan Motor Company, Ltd. Automotive suspension system with roll-stabilizer having road condition-dependent torsion modulus, and control of torsional modules
EP0136697A2 (en) * 1983-10-03 1985-04-10 Nissan Motor Co., Ltd. Ultrasonic vehicle rangefinder
EP0136697A3 (en) * 1983-10-03 1987-03-25 Nissan Motor Co., Ltd. Ultrasonic vehicle rangefinder
US4677595A (en) * 1983-10-03 1987-06-30 Nissan Motor Co., Ltd. Ultrasonic vehicle rangefinder
US4739860A (en) * 1984-05-29 1988-04-26 Nissan Motor Co., Ltd. Ultrasonic rangefinder
US4796726A (en) * 1984-05-29 1989-01-10 Nissan Motor Co., Ltd. Ultrasonic rangefinder
US4886291A (en) * 1984-06-06 1989-12-12 Nissan Motor Company, Limited Fail-safe system for automotive suspension control system
US4677599A (en) * 1984-06-20 1987-06-30 Nissan Motor Company, Limited Ultra-sonic distance measuring apparatus and method
JPS61234695A (en) * 1985-04-10 1986-10-18 Matsushita Electric Works Ltd Ultrasonic detector
JPH02195286A (en) * 1989-01-24 1990-08-01 Matsushita Electric Works Ltd Ultrasonic detector

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