A High Precision Shockproof Pressure Gauge with Temperature Compensation

Abstract

The invention disclosed in the invention belongs to the technical field of instruments, in particular to a high-precision shock-resistant pressure gauge with temperature compensation, comprising a joint, a dial, a dial, a shell, a back plate, a main cover and a sub-cover, and the top of the joint is Weld the dial, the left side wall of the dial is glued to the dial, this kind of high-precision shock-resistant pressure gauge with temperature compensation, when encountering high temperature, the temperature sensor on the back plate can measure the internal temperature of the casing. Detection, when the temperature exceeds the preset threshold, the stepper motor is controlled to rotate the shaft once, so that the auxiliary cover sleeved with the shaft rotates in the main cover ring groove of the main cover to form a gap, which is convenient for air circulation and accelerates the arc plate. The air exchange speed and the cooling speed are improved. After the dial groove is opened on the dial, the arc cover glass is added to shield the pointer. The shape of the arc cover glass can effectively disperse and relieve the pressure, and cooperate with the outer glass plate to form a double-layer glass. The effect increases the shock resistance and ensures the safety of the main components.

Description

technical field [0001] The invention relates to the technical field of instruments, in particular to a high-precision shock-resistant pressure gauge with temperature compensation. Background technique [0002] Instruments are instruments or equipment used to detect, measure, observe, and calculate various physical quantities, material components, physical parameters, etc. Instruments such as magnetometers, ray counters, etc. can feel and measure things that human sensory organs cannot feel. physical quantity. [0003] Among them, pressure gauge is a classification of instruments. Pressure gauge refers to an instrument that uses elastic elements as sensitive elements to measure and indicate pressure higher than the environment. It is widely used and it is used in almost all industrial processes and scientific research fields. [0004] Existing pressure gauges can be seen everywhere in areas such as heat pipe networks, oil and gas transmission, water and gas supply systems, a...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-precision shock-resistant pressure gauge with temperature compensation to solve the problem that when the pressure gauge proposed in the above background technology is used in a high-temperature environment, the high-temperature environment will cause the aging speed of the parts of the equipment to increase, and even Local deformation and expansion will occur. When the accuracy of the parts is reduced to a certain extent, it will directly affect the final measurement results. Secondly, in the face of high-pressure measurement, the existing pressure gauges lack effective shock resistance. When the external glass is broken At the same time, the main internal components lack effective protection, resulting in the problem of economic waste

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