JPS58106774U - object detection device - Google Patents

object detection device

Info

Publication number
JPS58106774U
JPS58106774U JP222682U JP222682U JPS58106774U JP S58106774 U JPS58106774 U JP S58106774U JP 222682 U JP222682 U JP 222682U JP 222682 U JP222682 U JP 222682U JP S58106774 U JPS58106774 U JP S58106774U
Authority
JP
Japan
Prior art keywords
detection device
object detection
piezoelectric element
thickness
wave receiver
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
JP222682U
Other languages
Japanese (ja)
Other versions
JPH0125346Y2 (en
Inventor
学徳 鴫原
守矢　滋
Original Assignee
ティーディーケイ株式会社
株式会社エロイカコ−ポレ−シヨン
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 ティーディーケイ株式会社, 株式会社エロイカコ−ポレ−シヨン filed Critical ティーディーケイ株式会社
Priority to JP222682U priority Critical patent/JPS58106774U/en
Publication of JPS58106774U publication Critical patent/JPS58106774U/en
Application granted granted Critical
Publication of JPH0125346Y2 publication Critical patent/JPH0125346Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る物体検知装置の実施例を示すブロ
ック図、第２図は実施例における超音波送波器及び超音
波受波器の具体的構造を示す断面図、第３図はその場合
の振動姿態を示す説明図、第４図は超音波送波器と受波
器の共振周波数の相互関係を示す説明図、第５因は超音
波送波器と受波器の圧電素子厚みの関係を示す説明図で
ある。 １・・・・・・発振回路、２・・・・・・超音波送波器
、３・・・・・・超音波受波器、４・・・・・・増幅回
路、５・・・・・・振幅検波回路、６・・・・・・出力
回路、１０・・・・・・紙、１１・・・・・・通路、２
０・・・・・・導波板、２１・・・・・・圧電素子、２
２・・・・・・ケース、２３・・・・・・弾性筒体、２
４・・・・・・弾性体。FIG. 1 is a block diagram showing an embodiment of the object detection device according to the present invention, FIG. 2 is a sectional view showing the specific structure of an ultrasonic transmitter and an ultrasonic receiver in the embodiment, and FIG. An explanatory diagram showing the vibration state in that case. Figure 4 is an explanatory diagram showing the mutual relationship between the resonance frequencies of the ultrasonic transmitter and receiver. The fifth factor is the piezoelectric element of the ultrasonic transmitter and receiver. It is an explanatory view showing the relationship of thickness. 1...Oscillation circuit, 2...Ultrasonic transmitter, 3...Ultrasonic receiver, 4...Amplification circuit, 5... ... Amplitude detection circuit, 6 ... Output circuit, 10 ... Paper, 11 ... Passage, 2
0... Waveguide plate, 21... Piezoelectric element, 2
2... Case, 23... Elastic cylinder, 2
4...Elastic body.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）物体通路を隔てて対向する超音波送波器と、超音
波受波器とを備えた物体検知装置において、前記送波器
及び受波器が、導波板の一面に圧電素子を設け、該導波
板の外周縁とケース前面開口縁との間隙を弾性体で密閉
支持した構成を有することを特徴とする物体検知装置。(1) In an object detection device including an ultrasonic wave transmitter and an ultrasonic wave receiver facing each other across an object path, the wave transmitter and the wave receiver include a piezoelectric element on one surface of a waveguide plate. What is claimed is: 1. An object detection device characterized by having a configuration in which a gap between an outer peripheral edge of the waveguide plate and a front opening edge of the case is sealed and supported by an elastic body. （２）前記送波器の共振周波数が前記受波器の共振周波
数と反共振周波数との間に設定される如く、前記送波器
の圧電素子の厚みを前記受波器の圧電素子の厚みよりも
厚く構成した実用新案登録請求の範囲第１項記載の物体
検知装置。(2) The thickness of the piezoelectric element of the wave transmitter is set to the thickness of the piezoelectric element of the wave receiver so that the resonant frequency of the wave transmitter is set between the resonant frequency and the anti-resonance frequency of the wave receiver. The object detection device according to claim 1 of the utility model registration claim, which is configured to have a thickness thicker than that of the object detection device.
JP222682U 1982-01-13 1982-01-13 object detection device Granted JPS58106774U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP222682U JPS58106774U (en) 1982-01-13 1982-01-13 object detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP222682U JPS58106774U (en) 1982-01-13 1982-01-13 object detection device

Publications (2)

Publication Number Publication Date
JPS58106774U true JPS58106774U (en) 1983-07-20
JPH0125346Y2 JPH0125346Y2 (en) 1989-07-28

Family

ID=30015210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP222682U Granted JPS58106774U (en) 1982-01-13 1982-01-13 object detection device

Country Status (1)

Country Link
JP (1) JPS58106774U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006129821A1 (en) * 2005-05-31 2006-12-07 Ngk Insulators, Ltd. Object passing detection device
US11506772B2 (en) 2017-10-26 2022-11-22 Seiko Epson Corporation Ultrasonic device and ultrasonic measuring apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640134U (en) * 1979-09-07 1981-04-14

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147008A (en) * 1977-05-30 1978-12-21 Inst Nefuchiehimichiesukago Sh Process for preparing c22c3 aliphatic alcohol

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640134U (en) * 1979-09-07 1981-04-14

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006129821A1 (en) * 2005-05-31 2006-12-07 Ngk Insulators, Ltd. Object passing detection device
US7707887B2 (en) 2005-05-31 2010-05-04 Ngk Insulators, Ltd. Passage detection apparatus of object
US8528408B2 (en) 2005-05-31 2013-09-10 Ngk Insulators, Ltd. Passage detection apparatus of object
US11506772B2 (en) 2017-10-26 2022-11-22 Seiko Epson Corporation Ultrasonic device and ultrasonic measuring apparatus

Also Published As

Publication number Publication date
JPH0125346Y2 (en) 1989-07-28

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