Temperature and pressure integrated transmitter and manufacture method thereof

Abstract

The invention relates to a temperature and pressure integrated transmitter and a manufacture method thereof and belongs to the instrument technical field. The temperature and pressure integrated transmitter comprises a connector and a sleeve; a polytetrafluoroethylene gasket is embedded at the front end of the connector; a narrowing opening of the front end of the connector is provided with a PT100 platinum resistor in a sealing manner; a diffused-silicon oil injection core body is arranged in a cavity arranged eccentrically at the rear portion of the connector; a temperature transmission plate and a pressure transmission plate are fixedly arranged at a cavity at the front portion of the sleeve; the temperature transmission plate is connected with the PT100 platinum resistor through a zigzag-wired temperature signal line; the pressure transmission plate is connected with the diffused-silicon oil injection core body; the tail end of the sleeve is provided with a gas communication cable in a sealed manner; the gas communication cable is connected with the temperature transmission plate and the pressure transmission plate; and the rear end of the connector is in sealed and fixed connection with the front end of the sleeve. According to the temperature and pressure integrated transmitter of the invention, a temperature transmitter and a pressure transmitter are designed into an integrated structure, and functions originally completed by the two kinds of transmitters can be completed by one transmitter, and integrated measurement of temperature and pressure can be realized.

Description

technical field [0001] The invention belongs to the technical field of instruments and meters, and in particular relates to a temperature and pressure integrated transmitter and a manufacturing method thereof. Background technique [0002] The PT100 temperature transmitter measures temperature based on the thermal effect of resistance, that is, the characteristic that the resistance value of the resistance body changes with the change of temperature. Therefore, as long as the resistance change of the thermal resistance is measured, the temperature can be measured. Metal thermal resistors generally have large resistivity and stable temperature coefficient. They are used for temperature measurement in the range of -200~500°C. They are characterized by accurate measurement, good stability, and reliable performance. They are widely used in automatic control. [0003] The diffused silicon oil-filled core sensor is a detection device that can sense the measured pressure informati...

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Problems solved by technology

[0005] The present invention solves the problems of slow temperature response and low measurement accuracy existing in the prior art by providing a temperature and pressure integrated transmitter and its manufacturing method:

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