Pressure transmitter with integrated encapsulation type sensor

Abstract

The invention relates to a site pressure measuring instrument and aims to provide a pressure transmitter with an integrated encapsulation type sensor. The pressure transmitter comprises an integrated encapsulation type sensor which comprises a flange with a hollow flange surface, wherein the middle part at the front side of the flange surface is provided with an annular pillar-shaped interface port protruding out of the flange surface; the rear side of the flange is provided with a hollow flange body, a sensor is arranged at the front end in the flange body, and a lead-out signal wire of the sensor is connected to a signal processing unit; a main circuit connecting lead is led out from the rear end of the signal processing unit and connected to a modularized main circuit board; and epoxy resin used for encapsulating is used for sealing and fixing the signal processing unit at the rear end in the flange body. The invention has the advantages of small volume and more convenient mounting, reduces site mounting accessories, reduces the site mounting cost, greatly shortens the maintenance time, reduces the maintenance cost and brings great convenience and economic benefit.

Description

technical field [0001] The invention relates to a pressure field measuring instrument, and more specifically, the invention relates to a pressure transmitter with an integrated potting sensor. Background technique [0002] The sensor part, the electronic circuit board part, and the housing part are the three main parts of the pressure transmitter. [0003] The traditional pressure transmitter structure has the following characteristics: [0004] The original pressure uses the same metal capacitance sensor as the differential pressure sensor, and the pressure introduction part adopts a double flange structure. The material cost, appearance volume, and weight of the whole machine are similar to the differential pressure transmitter, but only one flange is used on site, resulting in cost. on waste. [0005] Industrial sites often have a lot of dust, heavy moisture, and even corrosive gases. If the circuit is not protected, it will affect the long-term reliability of the produ...

AI Technical Summary

Problems solved by technology

If the electronic components of one transmitter are replaced with another transmitter, operations such as linearization and temperature compensation must be performed again, which is not only time-consuming and laborious, but also impossible to perform in the field

If at a certain site, due to human reasons, the failure of electronic components is caused, since the electronic components and sensors cannot be combined arbitrarily, they can only be returned to the factory for maintenance, which will not only increase the maintenance cost and prolong the maintenance time, but also cause inconvenience to the on-site users. bring inconvenience

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