JPS58136744U

JPS58136744U - pressure measuring device

Info

Publication number: JPS58136744U
Application number: JP3257882U
Authority: JP
Inventors: 湯原　忠徳
Original assignee: 富士電機株式会社
Priority date: 1982-03-10
Filing date: 1982-03-10
Publication date: 1983-09-14

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

[Brief explanation of the drawing]

第１図は従来の圧力検出装置を示す構成図、第２図はこ
の考案の実施例を示す構成図、第２Ａ図は第２図におけ
るスリット部を拡大して示す拡大図、第３図はこの考案
の他の実施例を示す構成図、第４図は変換部の構成例を
詳細に示すブロック図、第５図はこの考案のさらに他の
実施例を示す構成図である。符号説明、１・・・・・・カバー、２・・・・・・圧力
検出用ダイアフラム、３・・・・・・しやへい板、４・
・・・・・ケーシング、５，６・・・・・・受光素子、
７・・・・・・発光素子、８・・・・・・ホルダー、９
・・・・・・固定スリット板、１０・・・・・・可動ス
リット板、１１・・・・・・分岐器、１２・・・投光用
光ファイバ、１３・・・・・・受光用光ファイバ、１２
１゜１２□、１３．．１３□・・・・・・ファイバ端部
、１４・・・・・・発光素子ドライブ回路、１５・・・
・・・フィルタ、１６・・・ケート回路、１７・・・・
・・サンプルホールド回路、１８・・・・・・演算回路
、１９９・・・・・・増幅回路、ＴＲ・・・・・・変換
部、ＤＥ・・・・・・検出部。／’　７３．　１３７　　、！第３図−Fig. 1 is a block diagram showing a conventional pressure detection device, Fig. 2 is a block diagram showing an embodiment of this invention, Fig. 2A is an enlarged view showing the slit part in Fig. 2, and Fig. 3 is a block diagram showing a conventional pressure detection device. FIG. 4 is a block diagram showing a detailed example of the structure of the converting section, and FIG. 5 is a block diagram showing still another embodiment of the invention. Explanation of symbols, 1...Cover, 2...Diaphragm for pressure detection, 3...Shiyahei plate, 4.
...Casing, 5, 6... Light receiving element,
7...Light emitting element, 8...Holder, 9
...Fixed slit plate, 10...Movable slit plate, 11...Brancher, 12...Optical fiber for light emission, 13...For light reception optical fiber, 12
1゜12□, 13. ．． 13□...Fiber end, 14...Light emitting element drive circuit, 15...
...filter, 16...gate circuit, 17...
...Sample hold circuit, 18...Arithmetic circuit, 199...Amplification circuit, TR...Conversion unit, DE...Detection unit. /' 73. 137,! Figure 3-

Claims

[Scope of utility model registration request]

(1) A light emitting part and a first part that individually receives light from the light emitting part.
, first and second slit plates each having a plurality of slits of the same shape at the same position are arranged facing each other at a predetermined interval between the first slit plate and the second light receiving part, respectively. is fixed to the front surface of the first and second light receiving sections, while the second slit plate is engaged with a member that is displaced in response to pressure and is fixed to the front surface of the first and second light receiving sections. It is equipped with a detecting section configured to act as if it were an electrical signal, and a converting section that converts the change in the amount of light detected by the detecting section into an electric signal, and performs a predetermined calculation based on the converted electric signal. A pressure measuring device characterized in that it measures pressure.

(2) Utility model registration In the pressure measuring device according to claim 12, a light emitting element and a first
, a second light-receiving element is provided, the light-emitting element, the light-receiving element, and the detection part are each coupled by a light transmission means, and the light-emitting part and the first and second light-receiving element are connected to each other at an end of the light transmission means. 1. A pressure measuring device, characterized in that a detection section and a conversion section are electrically insulated by forming a section.

(3) Utility model registration In the pressure measuring device according to claim 2, calculating a ratio between the output difference between the first and second light receiving elements and the output of the light receiving element that does not respond to the pressure. A pressure measuring device characterized in that the influence of loss in the light transmission member or fluctuation due to temperature of the light emitting element is eliminated.

(4) Utility model registration In the pressure measuring device according to claim 2 or 3, the light emitting portion formed at the end of the light transmission means is also formed at the end of the light transmission means. A pressure measuring device characterized in that the pressure measuring device is branched so as to face one-to-one with the first and second light receiving portions.

(5) Utility model registration In the pressure measuring device according to claims 2 to 4, a plurality of the light transmission means are bundled to form a handle, or a plurality of bundled light transmission means are further formed into a handle. 1. A pressure measuring device characterized in that the degree of coupling of light is improved by forming the pressure measuring device into a predetermined shape.