JPS6443785A - Ultrasonic sensor - Google Patents

Ultrasonic sensor

Info

Publication number
JPS6443785A
JPS6443785A JP62200344A JP20034487A JPS6443785A JP S6443785 A JPS6443785 A JP S6443785A JP 62200344 A JP62200344 A JP 62200344A JP 20034487 A JP20034487 A JP 20034487A JP S6443785 A JPS6443785 A JP S6443785A
Authority
JP
Japan
Prior art keywords
outputted
detected
signal
ultrasonic wave
moving body
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
JP62200344A
Other languages
Japanese (ja)
Inventor
Shusuke Kondo
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.)
TORIO DENSHI KK
Original Assignee
TORIO DENSHI KK
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 TORIO DENSHI KK filed Critical TORIO DENSHI KK
Priority to JP62200344A priority Critical patent/JPS6443785A/en
Publication of JPS6443785A publication Critical patent/JPS6443785A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To output a prescribed detection signal only when a body to be detected is a moving body by detecting whether or not the body is the moving body from variation in the reception time interval of a reflected light from the body to be detected. CONSTITUTION:If the body to be detected enters a sensing range A while an ultrasonic wave from an oscillation-side vibrator 3 is outputted into the sensing range A through the operation of an ultrasonic wave oscillator 1, the reflected wave from the body is inputted to a reception-side vibrator 4. Then the reflected wave is amplified 5 and then passed through a limiter 7 and an envelope detector 8 to remove its ultrasonic wave component. A reflected wave signal SG4 outputted by the envelope detector 8 is integrated by an integrator 9 and outputted as an integral signal SG5 to a modulation detector 11. The modulation detector 11 compares the input integral signal SC5 with a last input integral signal SG5 in each period C. Then when their difference is detected, it is decided that the body is the moving body and a detection signal SG6 is outputted to a multivibrator 12.
JP62200344A 1987-08-11 1987-08-11 Ultrasonic sensor Pending JPS6443785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200344A JPS6443785A (en) 1987-08-11 1987-08-11 Ultrasonic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200344A JPS6443785A (en) 1987-08-11 1987-08-11 Ultrasonic sensor

Publications (1)

Publication Number Publication Date
JPS6443785A true JPS6443785A (en) 1989-02-16

Family

ID=16422728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200344A Pending JPS6443785A (en) 1987-08-11 1987-08-11 Ultrasonic sensor

Country Status (1)

Country Link
JP (1) JPS6443785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090696A1 (en) * 2008-01-16 2009-07-23 Mitsubishi Electric Corporation Dynamic obstacle judgment device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090696A1 (en) * 2008-01-16 2009-07-23 Mitsubishi Electric Corporation Dynamic obstacle judgment device
US8498958B2 (en) 2008-01-16 2013-07-30 Mitsubishi Electric Corporation Moving obstacle deciding apparatus and method
JP5627240B2 (en) * 2008-01-16 2014-11-19 三菱電機株式会社 Dynamic obstacle judgment device
DE112008003613B4 (en) * 2008-01-16 2015-05-13 Mitsubishi Electric Corp. Moving obstacle deciding device

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