JPS59128578U

JPS59128578U - Ultrasonic object detection device

Info

Publication number: JPS59128578U
Application number: JP2190283U
Authority: JP
Inventors: 健一郎新美; 森田　喜久蔵
Original assignee: 株式会社日立ホームテック
Priority date: 1983-02-17
Filing date: 1983-02-17
Publication date: 1984-08-29

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来実施例の断面構成と超音波の放射、反射、
受波状況を示す図、第２図は第１図におけ　゛る指向性
を示すグラフ、第３図は本考案の一実施例の断面構成と
超音波の放射、反射、受波状況を示す図、第４図は本考
案の一実施例の指向性を示すグラフ、第５図は本考案の
一実施例の斜視外観図である。　　　　゛１・・・検知部ケース、２・・・送信素子、７・・・物
体、４・・・受信素子、３・・・超音波放射部、５・・
・超音波受波部、１０・・・円錐状凹部、６・・・検知
部表面。Figure 1 shows the cross-sectional configuration of the conventional example, the emission and reflection of ultrasonic waves,
Figure 2 is a graph showing the directivity in Figure 1. Figure 3 is a diagram showing the cross-sectional configuration of an embodiment of the present invention and the radiation, reflection, and reception status of ultrasonic waves. 4 is a graph showing the directivity of an embodiment of the present invention, and FIG. 5 is a perspective external view of an embodiment of the present invention. 1... Detection unit case, 2... Transmission element, 7... Object, 4... Receiving element, 3... Ultrasonic wave emitting unit, 5...
- Ultrasonic wave receiving section, 10... conical recess, 6... detection section surface.

Claims

[Scope of utility model registration request]

In an ultrasonic detecting section in which an ultrasonic transmitting element and an ultrasonic receiving element are integrated and the combination of such elements is made up of a pair or more, ultrasonic interference occurs on the detecting section surface 6 between the ultrasonic emitting section 3 and the receiving section 5. An ultrasonic object detection device characterized by being provided with a conical recess 10 for prevention.