Double-surface indication pressure meter

Abstract

The invention discloses a double-surface indication pressure meter which comprises a pressure meter shell. A heat insulating shell is fixedly connected on the outer wall of the pressure meter shell, a containing shell is fixedly connected at the top of the heat insulating shell and communicated with the heat insulating shell, a communication opening is formed in the top of the pressure meter shell, the pressure meter shell is communicated with the heat insulating shell through the communication opening, an air inlet device is arranged in the containing shell, and a ventilation hole is formed in the top of the containing shell. The double-surface indication pressure meter is provided with the air inlet device, electric heating wires, a treatment device, a first feedback module, a second feedback module, a first comparison module, a second comparison module, a first temperature sensor and a second temperature sensor, so that the temperature in the pressure meter can be detected, heating treatment is performed when the temperature is lower, the pressure meter can work under suitable temperature, detection errors of the pressure meter can be reduced, numerical values can be accurately detected by the pressure meter, and use of people is facilitated.

Description

technical field [0001] The invention relates to the technical field of pressure gauges, in particular to a double-sided indicating pressure gauge. Background technique [0002] A pressure gauge refers to an instrument that uses an elastic element as a sensitive element to measure and indicate pressure higher than the environment. In the process of industrial process control and technical measurement, because the elastic sensitive element of a mechanical pressure gauge has high mechanical strength and is easy to produce, etc. The characteristics make the mechanical pressure gauge more and more widely used. [0003] In order to make it easier for people to observe the values ​​displayed by the pressure gauge, people have designed a pressure gauge with double-sided indications. The value will also change accordingly, resulting in inaccurate detected values, which is not convenient for people to use. Contents of the invention [0004] Aiming at the deficiencies of the prior ...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a double-sided indicating pressure gauge, which has the advantages of enabling the pressure gauge to accurately detect the value, and solves the problem that the pressure gauge cannot accurately detect the value under low temperature conditions

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