JPH0432994B2 - - Google Patents

Info

Publication number
JPH0432994B2
JPH0432994B2 JP14367984A JP14367984A JPH0432994B2 JP H0432994 B2 JPH0432994 B2 JP H0432994B2 JP 14367984 A JP14367984 A JP 14367984A JP 14367984 A JP14367984 A JP 14367984A JP H0432994 B2 JPH0432994 B2 JP H0432994B2
Authority
JP
Japan
Prior art keywords
impedance
signal
piezoelectric ceramic
control means
ceramic sensor
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
JP14367984A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6123984A (ja
Inventor
Wataru Hasegawa
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.)
West Electric Co Ltd
Original Assignee
West Electric 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 West Electric Co Ltd filed Critical West Electric Co Ltd
Priority to JP14367984A priority Critical patent/JPS6123984A/ja
Publication of JPS6123984A publication Critical patent/JPS6123984A/ja
Publication of JPH0432994B2 publication Critical patent/JPH0432994B2/ja
Granted legal-status Critical Current

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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP14367984A 1984-07-11 1984-07-11 超音波送受信装置 Granted JPS6123984A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14367984A JPS6123984A (ja) 1984-07-11 1984-07-11 超音波送受信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14367984A JPS6123984A (ja) 1984-07-11 1984-07-11 超音波送受信装置

Publications (2)

Publication Number Publication Date
JPS6123984A JPS6123984A (ja) 1986-02-01
JPH0432994B2 true JPH0432994B2 (ru) 1992-06-01

Family

ID=15344418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14367984A Granted JPS6123984A (ja) 1984-07-11 1984-07-11 超音波送受信装置

Country Status (1)

Country Link
JP (1) JPS6123984A (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03131206A (ja) * 1989-10-18 1991-06-04 Yoshiro Nakamatsu 折板傘
JP4569564B2 (ja) * 2005-01-12 2010-10-27 パナソニック電工株式会社 動線計測システム
JP4569565B2 (ja) * 2005-01-12 2010-10-27 パナソニック電工株式会社 動線計測システム
JP6568493B2 (ja) * 2016-03-18 2019-08-28 株式会社Soken 物体検知装置

Also Published As

Publication number Publication date
JPS6123984A (ja) 1986-02-01

Similar Documents

Publication Publication Date Title
EP0377257A1 (en) Identification system
US4175242A (en) Circuit arrangement for the automatic frequency control of an ultrasonic transducer
US5308968A (en) Non-contact IC card which actively attenuates its resonance circuit as it receives data
US4597068A (en) Acoustic ranging system
US6515487B1 (en) Low voltage low current bubble detection circuit
JPH0432994B2 (ru)
US4843464A (en) Device for automatic sensing of televiewing distance
US3522580A (en) Apparatus and method for measuring speed of sound in liquid
US3747058A (en) Ultrasonic detection apparatus
JPH0432993B2 (ru)
JPH02218983A (ja) 超音波センサ
JPS6031160B2 (ja) 超音波検知器
JPS6044624B2 (ja) 超音波測定装置
JPH0432623Y2 (ru)
JPS6310795B2 (ru)
JPS6113187B2 (ru)
JPS58206989A (ja) 音波送受信機
JPH0447788B2 (ru)
JP2584794Y2 (ja) 超音波検出装置
JPS5917181A (ja) 障害物検知装置
US5812495A (en) Ultrasonic rangefinder
EP0075617A1 (en) Ultrasonic distance measuring device
JPS59790B2 (ja) 物体検出装置
JPH09243734A (ja) 超音波センサ
JPH0348498Y2 (ru)