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Pressure transmitter and manufacturing method thereof

A transmitter and pressure technology, applied in measuring fluid pressure, measuring fluid pressure through electromagnetic components, instruments, etc., can solve problems such as high temperature drift coefficient, low pressure resistance, and easy fatigue deformation of the diaphragm

Pending Publication Date: 2020-10-23
SHENZHEN MAXONIC AUTOMATION CONTROL CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a pressure transmitter and a manufacturing method thereof, which are used to solve the problems of the pressure transmitter in the prior art, such as low pressure resistance capability, easy fatigue deformation of the diaphragm, and Technical problems with high temperature drift coefficient

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  • Pressure transmitter and manufacturing method thereof
  • Pressure transmitter and manufacturing method thereof
  • Pressure transmitter and manufacturing method thereof

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Embodiment Construction

[0046] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly or indirectly located on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, and is only for convenience of description, and should not be understood as a limitation on the technical solution. The terms "first" and "second" are used for convenience of description only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. "Plurality" means two or more, unless otherwise clearly and specifically defined.

[0047]In order to solve the te...

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Abstract

The invention relates to the technical field of pressure transmitters. The transmitter is characterized in that the transmitter provides a micro-strain pressure diaphragm made of an elastic material,a strain gauge, an amplification circuit board and a signal conversion circuit board, wherein a diaphragm pressure leading hole is formed in the pressure diaphragm, a planar circular diaphragm is arranged at an extending end of the diaphragm pressure leading hole, the strain gauge is solidified on a surface of the planar circular diaphragm, resistance change of the strain gauge is caused by the deformation of the planar circular diaphragm, the amplification circuit board is electrically connected with the strain gauge, the amplification circuit board is used for collecting the resistance signal, carrying out temperature compensation operation on the strain gauge and outputting an amplification voltage signal, and the signal conversion circuit board is electrically connected with the amplification circuit board, and the signal conversion circuit board is used for converting the input amplification voltage signal into a standard signal of the pressure transmitter and outputting the standard signal to external equipment electrically connected with the signal conversion circuit board. The invention further provides a manufacturing method of the pressure transmitter. The transmitter isadvantaged in that the highest measurement pressure is as high as 1000Mpa, 1.5 times of full-scale pressure cyclic loading is carried out for 1000000 times, and a temperature drift coefficient is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of pressure transmitters, in particular to a pressure transmitter and a manufacturing method thereof. Background technique [0002] A pressure transmitter is a device that converts pressure into an electric signal for control and remote transmission. It can convert physical pressure parameters such as gas and liquid felt by the load cell sensor into a standard electrical signal (such as 4 ~ 20mADC, etc.) ), to supply indicator alarms, recorders, regulators and other secondary instruments for measurement, indication and process adjustment. The measurement accuracy of the pressure transmitter directly affects the stability and safety of the control system. Various types of pressure transmitters in the prior art have the following common problems: 1. The pressure resistance capacity is low, and it is impossible to stably measure ultra-high pressures above 300MPa, and the overload capacity is low. After being af...

Claims

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Application Information

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IPC IPC(8): G01L9/00
CPCG01L9/0051
Inventor 邹海龙
Owner SHENZHEN MAXONIC AUTOMATION CONTROL CO LTD
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