JPS63177715U

JPS63177715U -

Info

Publication number: JPS63177715U
Application number: JP6845787U
Authority: JP
Priority date: 1987-05-09
Filing date: 1987-05-09
Publication date: 1988-11-17

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す断面図、第
２図は本考案の第２実施例を示す断面図、第３図
は本考案の制御手段を示す回路図、第４図は第１
実施例における流量―出力特性図、第５ａ図、第
５ｂ図は第２実施例における出力―マグネツト変
位を示す図、第６図は同上の差圧―流量特性図、
第７図は同上「流量―出力」特性図である。１……面積流量計の本体、２……フロート、３
，１３……マグネツト、４……摺動用ガイド、５
，１５……ホール素子、６，１６……制御手段、
７……流路、８……オリフイス、９……高圧導圧
路、１０……低圧導圧路、１１……差圧検出部、
１２……ベロフラム、１４……隔壁、Ｒ_１，Ｒ_２…Ｒｉは抵抗、Ｅ_１，Ｅ_２…Ｅｉは基準電圧、Ｃ
_１，Ｃ_２…Ｃｉはコンパレータ。 Fig. 1 is a sectional view showing a first embodiment of the invention, Fig. 2 is a sectional view showing a second embodiment of the invention, Fig. 3 is a circuit diagram showing a control means of the invention, and Fig. 4 is a sectional view showing a second embodiment of the invention. 1st
Flow rate-output characteristic diagram in the example, Figures 5a and 5b are diagrams showing the output-magnet displacement in the second embodiment, Figure 6 is the same differential pressure-flow rate characteristic diagram,
FIG. 7 is a "flow rate-output" characteristic diagram same as above. 1...Body of area flow meter, 2...Float, 3
, 13...Magnet, 4...Sliding guide, 5
, 15... Hall element, 6, 16... Control means,
7... Flow path, 8... Orifice, 9... High pressure impulse path, 10... Low pressure impulse path, 11... Differential pressure detection section,
12... Bellofram, 14... Partition wall, R ₁ , R ₂ ...Ri is resistance, E ₁ , E ₂ ...Ei is reference voltage, C
₁ , _C2 ...Ci is a comparator.

Claims

[Scope of Claim for Utility Model Registration] 1. A flow meter that measures and displays the flow rate of a fluid or controls equipment related to a flow path, including a magnet displacement take-out portion that corresponds to changes in flow rate, and a displacement portion of the magnet that corresponds to a change in flow rate. An electronic flowmeter comprising a magnetoelectric transducer that is close to each other and converts the displacement into an electrical signal, and a control means that displays the flow rate or controls related equipment based on the output of the magnetoelectric transducer. 2. The magnetic displacement extraction section consists of a movable float of the area flowmeter, a rod extending from the upper surface of the movable float, a sliding guide provided on the outside of a flow path formed in the movable float portion, and an upper end of the rod. The electronic flow meter according to claim 1, which is a registered utility model, and further comprises a magnet that is fixed to the float and is movable up and down within the sliding guide as the float goes up and down. 3. The magnetic displacement extraction section includes a throttle mechanism in the flow path, a differential pressure detection section connected to high pressure and low pressure impulse lines extending from the front and rear of the throttle mechanism, and a differential pressure detection section that detects the differential pressure and determines the displacement. 1. The electronic flowmeter according to claim 1, which comprises a magnet extending from a bellofram. 4. The control means includes an amplification display section for the analog electrical output of the magnetoelectric conversion element, and a comparator output section that provides reference setting values corresponding to a plurality of specific flow rate values, compares the output of the amplification display section, and outputs a control output to the outside. An electronic flowmeter according to claim 1 of the utility model registration claim, which comprises: