Direct-excitation type angular displacement sensing metering device

A measuring device and angular position technology, which is applied in measuring devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve the problems of interfering with the normal operation of magnetic sensors and poor accuracy of measurement results.

Inactive Publication Date: 2019-12-03
长沙铨准电子科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in this method, when the external magnetic field is very strong, it will interfere with the normal operation of the magnetic sensor, resulting in poor accuracy of measurement results

Method used

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  • Direct-excitation type angular displacement sensing metering device
  • Direct-excitation type angular displacement sensing metering device
  • Direct-excitation type angular displacement sensing metering device

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention provides a direct-excitation type angular displacement sensing metering device, which comprises a connecting rod (11), a disc (12), a printed circuit board (PCB) (13), a metal sheet (14)and a power supply. One end of the connecting rod (11) is fixed to the circle center of the disc (12); the metal sheet (14) is fixedly arranged on the disc (12), and a straight line where the edge ofthe metal sheet (14) is located intersects with a straight line where the connecting rod (11) is located; the PCB (13) and the disc (12) are arranged in parallel at intervals; and the PCB (13) is electrically connected with the power supply. The PCB (13) comprises a coil layer (131) and a wiring layer (132). The coil layer (131) is composed of a plurality of induction coils, and the shape of thecoil layer (131) is the same as the shape of the disc (12); and a sampling circuit (15) for acquiring signals is arranged on a component layer (132). The metering device provided by the invention canprevent interference of an external magnetic field and can accurately meter the flow velocity or flow of liquid and gas.

Description

technical field [0001] The present application relates to fluid metering fields such as liquid metering and gas metering, and specifically relates to a direct excitation type angular position sensing metering device. Background technique [0002] When the flow rate or flow rate of liquid or gas is currently detected, it is usually based on the liquid or gas flow driving mechanical parts to rotate, and the flow rate or flow rate of liquid or gas is calculated by the rotation rate of the mechanical parts. [0003] Specifically, in the prior art, a permanent magnet is placed at a preset position away from the rotor, and a magnetic sensor is placed above the rotation path of the permanent magnet to convert the change of the magnetic field state into an electrical signal. However, in this method, when the external magnetic field is very strong, it will interfere with the normal operation of the magnetic sensor, resulting in poor accuracy of measurement results. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/56G01P5/08
CPCG01F1/56G01P5/083
Inventor 张弦
Owner 长沙铨准电子科技有限公司
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