JPS56104266A - Ultrasonic measuring apparatus - Google Patents

Ultrasonic measuring apparatus

Info

Publication number
JPS56104266A
JPS56104266A JP761380A JP761380A JPS56104266A JP S56104266 A JPS56104266 A JP S56104266A JP 761380 A JP761380 A JP 761380A JP 761380 A JP761380 A JP 761380A JP S56104266 A JPS56104266 A JP S56104266A
Authority
JP
Japan
Prior art keywords
residual vibration
output
given
ultrasonic
reception
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.)
Granted
Application number
JP761380A
Other languages
Japanese (ja)
Other versions
JPS6310795B2 (en
Inventor
Hiroshi Minami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP761380A priority Critical patent/JPS56104266A/en
Publication of JPS56104266A publication Critical patent/JPS56104266A/en
Publication of JPS6310795B2 publication Critical patent/JPS6310795B2/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52003—Techniques for enhancing spatial resolution of targets

Abstract

PURPOSE:To permit automatic setting of a proper blind zone by drawing the reception ultrasonic wave above a given level after the detection of a given attenuation of the residual vibration of an ultrasonic transmitter-receiver accompanying transmission. CONSTITUTION:Through a transmission-reception wave change-over circuit 14, the residual vibration accompanying the transmission from an ultrasonic transmitter- receiver 15 and the reflected wave are rectified and smoothed by a diode 28, a capacitor 29 and the like in a residual vibration termination detecting circuit 27 and the envelope output is processed in a comparator 33. When the residual vibration attenuates to below a given level, the output of the comparator 33 inverts to low level. Thereby, the Q output of a JK type FF38 is raised to high level, so that a JK type FF39 is reset. Similarly to that after the residual vibration has been attenuated to below the given value the reception ultrasonic pulse is raised to high level above the given value, the Q output of the FF39 is raised to high level by the low level inverted input via the comparator circuit 33 and an inverter 41, so that the ultrasonic reception wave is detected. Accordingly, a proper blind zone is automatically set to prevent the generation of errors and the like in measurement due to misreception.
JP761380A 1980-01-25 1980-01-25 Ultrasonic measuring apparatus Granted JPS56104266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP761380A JPS56104266A (en) 1980-01-25 1980-01-25 Ultrasonic measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP761380A JPS56104266A (en) 1980-01-25 1980-01-25 Ultrasonic measuring apparatus

Publications (2)

Publication Number Publication Date
JPS56104266A true JPS56104266A (en) 1981-08-19
JPS6310795B2 JPS6310795B2 (en) 1988-03-09

Family

ID=11670655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP761380A Granted JPS56104266A (en) 1980-01-25 1980-01-25 Ultrasonic measuring apparatus

Country Status (1)

Country Link
JP (1) JPS56104266A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586182A (en) * 1981-07-03 1983-01-13 Clarion Co Ltd Variable capacitor
JPS5825279A (en) * 1981-07-17 1983-02-15 Clarion Co Ltd Variable capacitance device
JP2005178446A (en) * 2003-12-16 2005-07-07 Advics:Kk Breakdown inspection device for vehicle control device
CN112114298A (en) * 2020-09-22 2020-12-22 苏州易德龙科技股份有限公司 Ultrasonic sensor signal detection method capable of avoiding residual vibration interference

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03143281A (en) * 1989-10-26 1991-06-18 Ekon Kk Starter for high voltage ac induction motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139370A (en) * 1975-05-27 1976-12-01 Omron Tateisi Electronics Co Reflection-type ultrasonic object detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139370A (en) * 1975-05-27 1976-12-01 Omron Tateisi Electronics Co Reflection-type ultrasonic object detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586182A (en) * 1981-07-03 1983-01-13 Clarion Co Ltd Variable capacitor
JPS5825279A (en) * 1981-07-17 1983-02-15 Clarion Co Ltd Variable capacitance device
JP2005178446A (en) * 2003-12-16 2005-07-07 Advics:Kk Breakdown inspection device for vehicle control device
CN112114298A (en) * 2020-09-22 2020-12-22 苏州易德龙科技股份有限公司 Ultrasonic sensor signal detection method capable of avoiding residual vibration interference
WO2022063042A1 (en) * 2020-09-22 2022-03-31 苏州易德龙科技股份有限公司 Ultrasonic sensor signal detection method for avoiding residual vibration interference

Also Published As

Publication number Publication date
JPS6310795B2 (en) 1988-03-09

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