Design and Research of a Certain Type of Automatic Alarm Equipment

DOI: https://doi.org/10.62517/jes.202402204

Author(s)

Huan Zhu*, Le Qi, Jing Shi

Affiliation(s)

Aviation Maintenance NCO School, Air Force Engineering University, Xinyang, Henan, China *Corresponding author.

Abstract

Rapid detection of oxygen leaks in pipelines is crucial to prevent catastrophic accidents. This paper presents the design of an oxygen leakage detection and alarm instrument that converts ultrasonic signals, generated by gas escaping through small holes, into audible frequencies for headset use. This instrument is particularly suitable for ensuring the airtightness of oxygen supply systems for flight crews, engine startup supplemental oxygen systems, and four-station oxygen supply equipment. The design integrates ultrasonic principles, signal processing, computer control, and anti-jamming technologies to detect even minor leaks from a distance. The modular design includes components such as ultrasonic sensors, preamplifiers, filtering circuits, and microcontrollers, ensuring high detection sensitivity and reliability. The alarm system features light and sound alerts, enhancing maintenance efficiency and safety. This modern precision testing instrument significantly improves upon traditional leak detection methods like soapy water tests.

Keywords

Air Leakage, Alarm Instrument; Signal Conversion, Design Study, Gas Tightness

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