JPH0466519U

JPH0466519U -

Info

Publication number: JPH0466519U
Application number: JP11068690U
Authority: JP
Priority date: 1990-10-22
Filing date: 1990-10-22
Publication date: 1992-06-11

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例における流量計用パ
ルス発信器を備えた制御装置の回路ブロツク図、
第２図は磁気センサの配置説明図、第３図は流量
計の概略縦断正面図、第４図は第１図の回路ブロ
ツクにおける各部信号波形図である。１……回転円板、２……磁石、３，４……磁気
センサ、１１，１２……フリツプフロツプ回路、
１３……論理回路。 FIG. 1 is a circuit block diagram of a control device equipped with a pulse transmitter for a flowmeter according to an embodiment of the present invention;
2 is an explanatory diagram of the arrangement of the magnetic sensor, FIG. 3 is a schematic longitudinal sectional front view of the flow meter, and FIG. 4 is a diagram of signal waveforms at various parts in the circuit block of FIG. 1. 1... Rotating disk, 2... Magnet, 3, 4... Magnetic sensor, 11, 12... Flip-flop circuit,
13...Logic circuit.

Claims

[Scope of utility model registration request]

A rotating disk that rotates at a rotational speed corresponding to the instantaneous flow rate of fluid and has a plurality of magnets installed at predetermined intervals in the circumferential direction and alternately with opposite polarity; a pair of magnetic sensors that output a signal and are installed at an interval shorter than the installation interval of the magnets, and a pair of flip-flop circuits that are set by one of the positive and negative signals from each of these magnetic sensors and reset by the other. and a logic circuit that outputs a predetermined pulse signal depending on either positive or negative signals from both of the magnetic sensors.