JPS5824077U

JPS5824077U - Flow rate measuring device

Info

Publication number: JPS5824077U
Application number: JP11732981U
Authority: JP
Inventors: 上野　雄夫; 滝谷　敬一郎; 小関　智也; 江島　彬夫
Original assignee: 川崎製鉄株式会社
Priority date: 1981-08-06
Filing date: 1981-08-06
Publication date: 1983-02-15

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図はこの考案の一実施例の流速測定装置の構造を示
す縦断側面図、第２図はこの考案の一実施例の流速測定
装置の電気回路部分を示す結線図である。１・・・・・・基体、７・・・・・・第１流体導入口、
８・・・・・・第２流体導入口、９・・・・・・総圧検
出室、１０・・・・・・静圧検出室、１１・・・・・・
総圧検出用の圧力検出素子としての抵抗線歪ゲージ、１
２・・・・・・静圧検出用の圧力検出素子としての抵抗
線歪ゲージ、１３・・・・・・回路収容室、１４・・・
・・・差信号取出回路、１４ａ。１４ｂ、　　１４Ｃ，１４ｄ・・・・・・抵抗器。 −丁］１　　　　　　　苧２月１“FIG. 1 is a vertical cross-sectional side view showing the structure of a flow rate measuring device according to an embodiment of this invention, and FIG. 2 is a wiring diagram showing an electric circuit portion of the flow rate measuring device according to an embodiment of this invention. 1... Base body, 7... First fluid inlet,
8...Second fluid inlet, 9...Total pressure detection chamber, 10...Static pressure detection chamber, 11...
Resistance wire strain gauge as a pressure detection element for detecting total pressure, 1
2...Resistance wire strain gauge as a pressure detection element for static pressure detection, 13...Circuit housing chamber, 14...
...Difference signal extraction circuit, 14a. 14b, 14C, 14d...Resistor. -Ding】1 苧February 1

Claims

[Scope of utility model registration request]

(1) A first fluid inlet is formed at the tip of a base whose outer circumferential surface is formed as a smooth cylindrical surface as a whole, and a first fluid inlet is formed at a predetermined position on the outer circumferential surface of the base at intervals in the circumferential direction. A plurality of second fluid inlets are formed, and a total pressure detection chamber connected to the first fluid inlet and a static pressure detection chamber connected to the second fluid inlet are isolated from each other inside the base body. The total pressure detection chamber and the static pressure detection chamber are each provided with a pressure detection element that converts the pressure of the fluid into an electrical signal, and the pressure detection elements in both the side chambers include:
A flow rate measuring device connected to a difference signal extraction circuit that determines the difference between the electrical signals of the two halves.

(2) Scope of the Utility Model Registration Claim, wherein each of the pressure detecting elements is comprised of a resistance wire strain gauge, and the difference signal extraction circuit is comprised of a resistance circuit for determining the difference in output voltage of the resistance wire strain gauge. 2. The flow rate measuring device according to item 1.

(3) In addition to the total pressure detection chamber and the static pressure detection chamber, a circuit housing chamber is formed inside the base body, and the difference signal extraction circuit is housed in the circuit housing chamber. 1. The flow rate measuring device according to item 1.