Metering instrument

A meter and pole magnetic technology, applied in the field of metering, can solve the problems of complex assembly process, high cost, and weak anti-magnetic interference ability of the meter

Pending Publication Date: 2022-07-08
GOLDCARD HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above measuring instruments have weak anti-magnetic interference ability, complicated assembly process and high cost

Method used

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  • Metering instrument
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Examples

Experimental program
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Effect test

Embodiment Construction

[0045] When there is fluid flowing in the meter, the fluid drives the movement to rotate, the movement pushes the inner magnetic ring to rotate, the inner magnetic ring drives the outer magnetic ring to rotate through the magnetic field between the inner magnetic ring and the outer magnetic ring, and the outer magnetic ring rotates through the transmission gear Drive the metering magnetic steel to move, the magnetic induction element senses the change of the magnetic field generated by the metering magnetic steel and generates corresponding level information, and the processor obtains the corresponding fluid flow according to the above-mentioned level information. However, the measuring magnetic steel is small in size, and the generated magnetic field strength is low. Small external magnetic interference will make the magnetic field sensed by the magnetic induction element change greatly, which will affect the accuracy of the magnetic induction element in sensing and measuring t...

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Abstract

The invention provides a meter, relates to the technical field of metering, and is used for solving the technical problems of weak magnetic interference resistance, complex assembly process and relatively high cost of the meter. The meter comprises a magnetic ring and a bipolar magnetic switch sensor chip, the bipolar magnetic switch sensor chip is located in an area defined by the inner ring face of the magnetic ring, and the bipolar magnetic switch sensor chip can distinguish an N pole and an S pole. When the magnetic ring rotates, the bipolar magnetic switch sensor chip obtains the number of turns of rotation of the magnetic ring by sensing the number of times of an N-pole magnetic field and an S-pole magnetic field of the magnetic ring; and / or the bipolar magnetic switch sensor chip obtains the number of turns of rotation of the magnetic ring by sensing the number of times of conversion between the N-pole magnetic field and the S-pole magnetic field of the magnetic ring. The meter provided by the invention is used for improving the magnetic interference resistance of the meter, simplifying the assembly process of the meter and reducing the cost of the meter.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a measurement instrument. Background technique [0002] Measuring instruments are usually used to measure the flow of fluids. Common measuring instruments include a casing, a movement, an inner magnetic ring located inside the casing, an outer magnetic ring located outside the casing, a magnetic induction element, a processor, a transmission gear, and a measuring magnet. The movement is connected with the inner magnetic ring, the outer magnetic ring is located in the area enclosed by the inner ring surface of the inner magnetic ring, the transmission gear drives the connection between the outer magnetic ring and the measuring magnetic steel, the magnetic induction element is connected with the processor signal, and the magnetic induction element Induction metering of the movement of the magnets. When there is fluid flowing in the meter, the fluid drives the movement to rotat...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01F15/075G01F15/14
CPCG01F15/075G01F15/14
Inventor刘洋
OwnerGOLDCARD HIGH TECH