Light cavity constant-pressure control system based on pump valve cooperation and wading perception and active protection method of light cavity constant-pressure control system

By combining a pump-valve coordinated and water-sensing optical cavity constant pressure control system with visual and capacitive liquid level sensing modules, rapid, precise adjustment and high-stability control of optical cavity pressure are achieved. This solves the problem of the disconnect between pressure regulation and environmental protection in existing technologies, and improves the dynamic performance and safety of the system.

CN122131642APending Publication Date: 2026-06-02BEIJING BEIKONG BEIDOU TECH INVESTMENT CO LTD
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Patent Information

Application Number
CN202610083400.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing optical cavity environmental control systems are disconnected in terms of pressure regulation and environmental protection, resulting in slow response speed, single regulation direction, difficulty in achieving rapid and accurate bidirectional pressure regulation, and lack of proactive perception and intelligent intervention capabilities for environmental risks, thus failing to meet the stability and safety requirements of high-precision optical measurements.

Method used

By employing a pump-valve coordinated pressure control unit, a dual environmental sensing unit, and a distributed intelligent coordinated control unit, combined with a self-tuning and adaptive PID module, high-precision pressure control and active protection through pump-valve coordination are achieved. Real-time risk monitoring and graded intervention are carried out through a visual sensing module and a capacitive liquid level sensing module, thus constructing a safety defense line of forward-looking early warning and real-time blocking.

Benefits of technology

It achieves rapid, precise adjustment and high-stability control of the optical cavity pressure, significantly improving the dynamic performance and robustness of the system, reducing the risk of performance degradation due to contamination, and ensuring the long-term operational reliability and data consistency of the system.

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Abstract

The invention relates to an optical cavity constant pressure control system based on pump valve cooperation and wading perception and an active protection method of the optical cavity constant pressure control system, and belongs to the field of precise instrument control and industrial automation. And the air inlet flow and the air exhaust flow are dynamically adjusted according to a self-adaptive PID algorithm and a collaborative distribution function, so that high-precision and rapid two-way adjustment of the pressure of the optical cavity is realized. And meanwhile, a dual environment sensing unit comprising visual sensing and capacitive liquid level sensing is adopted, and constant-voltage control and active anti-intrusion monitoring are executed in parallel through an intelligent cooperative control unit. When the water inflow risk is visually recognized, the system actively limits the pump speed; when the capacitive sensor detects invasion of liquid water, emergency shutdown is executed immediately. The problem that pressure control and safety guarantee are difficult to cooperate in the prior art is solved, unification of long-term precise constant pressure and active pollution protection is achieved, and the reliability, safety and intelligent level of the system under complex working conditions are remarkably improved.
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