A resistance vacuum transmitter

Abstract

The invention discloses a resistance vacuum transmitter, which comprises a resistance vacuum gauge tube, an electrical bridge device, an amplifying device, an A / D analog-to-digital conversion device, a power supply device, a micro-control device and a display device. According to the technical scheme of the invention, the resistance vacuum transmitter is small in size and light in weight. The analog output signal of the resistance vacuum transmitter is good in linearity control. When a user adopts the analog signal, the current vacuum degree can be accurately reflected. The micro-control device judges whether to be in a decoupling state or not according to the acquired signal of a decoupling device and then displays the judgment result via a nixie tude. Therefore, the resistance vacuum transmitter is very convenient to use for users.

Description

Technical field [0001] The invention relates to the technical field of measuring equipment, and more specifically to a vacuum measuring device. Background technique [0002] Resistance vacuum transmitter is a kind of vacuum measuring instrument, which has the characteristics of high stability, accurate measurement, continuous measurement and long service life in its measurement range. It is widely used in aviation, aerospace, nuclear energy, electronic and electrical equipment manufacturing, etc. field. [0003] The existing resistance vacuum transmitter has the following problems: 1. The vacuum probe and the measuring instrument of the existing resistance vacuum transmitter are separated, and the two are connected by a cable, resulting in a larger measuring instrument and a relatively heavy weight. Large, the use in small spaces is restricted, and cannot meet some areas that have higher requirements for space and weight; 2. The existing resistance vacuum transmitter analog signal...

AI Technical Summary

Problems solved by technology

[0003] The existing resistance vacuum transmitter has the following problems: 1. The vacuum probe of the existing resistance vacuum transmitter is separated from the measuring instrument, and the two are connected with a cable, resulting in a larger volume and heavier weight of the measuring instrument. Large, the use in small spaces is limited, and it cannot meet some fields that have high requirements for space and weight; Second, the existing resistance vacuum transmitter analog signal output linearity control is not good, and it is not possible for users to use analog signals Accurately reflect the current vacuum

3. The existing resistance vacuum transmitter does not have the function of decoupling. In a vacuum environment, the user cannot judge whether the resistance vacuum transmitter displays the current vacuum degree or whether the gauge is broken or not connected.

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