JPS5889007U

JPS5889007U - Ultrasonic receiver

Info

Publication number: JPS5889007U
Application number: JP18539181U
Authority: JP
Inventors: 晋一郎梅村; 小川　後雄; 景義片倉; 高林　百合子
Original assignee: 株式会社日立メデイコ
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1983-06-16

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 drawings]

第１図および第３図はこの種の従来の装置の原理説明図
、第２図は同じく回路図、第４図は本考案の原理説明図
、第５図は同じく回路図、第６図は本考案による受信ビ
ーム設定の詳細を示す説明図、第７図は本考案におけ゛
る反射体との距離に応じて傾斜回路を切換えグループの
境界を変化させ多段フォーカスを行なう状態を示す説明
図である。４ａ〜４ｎ・・・エレメント、５ａ〜５ｎ・・・第１の
遅延素子、６ａ〜６ｎ・・・セグメント、７ａ〜７ｍ・
・・第２の遅延素子。才　ｆ　団Figures 1 and 3 are diagrams explaining the principle of this type of conventional device, Figure 2 is a circuit diagram, Figure 4 is a diagram explaining the principle of the present invention, Figure 5 is a circuit diagram, and Figure 6 is a diagram explaining the principle of the present invention. An explanatory diagram showing details of reception beam setting according to the present invention. Fig. 7 is an explanatory diagram showing a state in which multi-step focusing is performed by switching the gradient circuit according to the distance to the reflector and changing the group boundary according to the present invention. It is. 4a-4n... Element, 5a-5n... First delay element, 6a-6n... Segment, 7a-7m.
...Second delay element. talented group

Claims

[Scope of utility model registration request]

An array-type acoustic-electrical transducer consisting of a plurality of elements arranged in a straight line at equal intervals, and a processing mechanism that adds different delay times to the received signals from each element and adds them to each other in order to form a receiving beam. In an ultrasonic receiving device, all the elements in the receiving aperture are divided into segments each consisting of n (n≧2) elements adjacent to each other, and the output of each of the elements in each segment is calculated by dividing the output of each element in the segment. a first delay means for delaying the output by a time corresponding to the position; and a second delay means for delaying the output of the first delay means added together for each segment by a time corresponding to the position of the segment on the receiving aperture. delay means, dividing the segment into groups each consisting of a plurality of adjacent segments;
An ultrasonic receiving device characterized in that the combination of delay times by the first delay means in each segment is the same for each group.