Small digital display detection system for combined type vacuum gauge

By designing a small digital display and detection system for composite vacuum gauge, the problem of power supply and maintenance of vacuum gauge in industrial environments is solved, the portability and high-precision detection of the equipment are achieved, and the production efficiency and applicability are improved.

CN119666231APending Publication Date: 2025-03-21CHINA COAL SCIENCE & TECHNOLOGY (TIANJIN) ROCK FORMATION INTELLIGENT CONTROL TECHNOLOGY CO LTD +2
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Patent Information

Application Number
CN202411838004.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

Composite vacuum gauge is difficult to use in some industrial environments, mainly because it relies on external power supply and cannot replace or calibrate the vacuum gauge while the vacuum cavity remains vacuum, resulting in reduced production efficiency and limited daily inspection and maintenance.

Method used

A small digital display detection system is designed, including level conversion module, signal acquisition and processing module, display module, data storage module, unit conversion module and data transmission module. It is connected to the vacuum gauge through a lithium battery power supply and a DB15 interface, collects and processes voltage signals, displays vacuum degree values, stores and transmits data, and realizes independent power supply and detection of the composite vacuum gauge.

Benefits of technology

It improves the portability and applicability of the equipment, removes the dependence on external power supplies, realizes compatibility and support for a variety of composite vacuum gauges, improves detection accuracy and applicability, and simplifies the deployment and maintenance of the equipment.

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Abstract

The invention provides a small digital display detection system for a composite vacuum gauge, and the system comprises a level conversion module which is connected with the composite vacuum gauge through a DB15 universal interface, and converts a 5V power supply provided by a lithium battery into 24V and 3.3 V, so as to meet the power supply demands of the composite vacuum gauge and the system; the signal acquisition and processing module is used for acquiring a voltage signal transmitted back by the combined type vacuum gauge and calculating and processing the voltage signal to obtain a currently detected vacuum degree value; the display module is used for displaying the vacuum degree value and supporting switching of display modes; the data storage module is used for storing the vacuum degree numerical value; the unit conversion module is used for mutually converting the vacuum degree numerical values among Torr, Bar and Pa units; and the data transmission module is used for transmitting the vacuum degree numerical value to an upper computer through the USB interface. According to the invention, the problems of difficult measurement and detection of the vacuum gauge caused by narrow space of a production environment and power supply of the vacuum gauge in detection can be solved, and daily vacuum measurement regular detection requirements are met.
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