HomenewsIndustry newsHow does a helium leak detector work? — Revealing the secrets of efficient vacuum sealing detection technology

How does a helium leak detector work? — Revealing the secrets of efficient vacuum sealing detection technology

2025-06-13

share:

In industrial production, the sealing of equipment is often directly related to the quality and efficiency of production, especially in the application of vacuum equipment. Poor vacuum sealing may lead to decreased equipment performance, waste of resources, and even affect product quality control. In order to ensure the sealing of equipment, helium leak detectors are widely used in vacuum equipment, sealing devices and other fields that require strict detection as an efficient detection tool.

Working principle of helium leak detector
Helium leak detector, as the name suggests, is a special instrument that uses helium as a gas medium for leak detection. Its principle is based on the mass spectrometry detection technology of helium. Helium has the characteristics of small molecules, strong diffusion and low density, which makes it extremely sensitive in gas leak detection. The helium leak detector accurately detects the sealing of the equipment by injecting helium into the equipment or container being tested and monitoring whether the helium escapes through potential leak points.

Specifically, the helium leak detection instrument is equipped with a mass spectrometer inside. When helium escapes through a tiny leak hole in the equipment seal, the mass spectrometer detects the characteristic signals of the helium molecules and converts these signals into electrical signals, thereby locating, quantifying and qualitatively analyzing the leak. The key advantage of this process is its high sensitivity and rapid response, which allows even extremely small leaks to be quickly discovered and handled.

Advantages of helium leak detectors

High sensitivity

The helium leak detector has extremely high sensitivity and can detect tiny leaks, with a minimum detection sensitivity of 10^-12 Pa·m³/s. Compared with traditional detection methods, the helium leak detector can accurately locate the leak point and avoid equipment failure caused by leaks.

Simple operation and rapid detection

The operation of the helium leak detector is very simple. The user only needs to connect the device to the detection area, start the instrument, and start the detection. The entire detection process is efficient and fast, and can provide accurate detection results in a short time, reduce production downtime, and improve work efficiency.

No pollution, strong environmental protection

As a harmless and non-reactive gas, helium does not harm the environment and personnel safety. Compared with other leak detection methods, such as nitrogen or ammonia, helium leak detectors are more environmentally friendly and do not pollute the detection area, making them suitable for high-demand industrial environments.

Wide range of applications

Helium leak detectors are widely used, especially in industries with high precision requirements such as vacuum equipment, aerospace, semiconductor manufacturing, medical equipment, and nuclear energy. Whether it is a high vacuum system or a sealed container, a helium leak detector can accurately detect potential leaks.

Application scenarios
Vacuum equipment detection

During the production and use of vacuum equipment, leakage problems will cause the vacuum degree to drop and affect the normal operation of the equipment. Through the helium leak detector, the vacuum system can be fully leak-tested to ensure the sealing and performance of the equipment.

Semiconductor manufacturing

In the semiconductor manufacturing process, tiny leaks may also affect the quality and yield of the product. Using a helium leak detection instrument can effectively detect tiny leaks and ensure the sealing and stability of the production environment.

Aerospace field

For aerospace equipment, sealing is crucial, especially in high-pressure environments. With its high sensitivity, helium leak detectors also play an irreplaceable role in the application of aerospace.

Medical Equipment Leak Detection

In medical equipment, the sealing of the gas circulation system, in particular, is crucial to its use effect. Helium leak detectors can help ensure the airtightness of medical equipment and prevent the hazards caused by leakage.

Summary
Helium leak detectors have become an indispensable detection tool in modern industry due to their high sensitivity, rapid detection capabilities and wide range of application scenarios. Whether in vacuum equipment, semiconductor manufacturing, or aerospace and medical equipment, helium leak detectors play an indispensable role. With the continuous advancement of technology, the performance of helium leak detectors will become more and more perfect, providing more accurate and rapid solutions for sealing detection in various industries.

If you are still worried about equipment leakage, choosing a high-performance helium leak detector will be the key to keeping your equipment running efficiently! Anhui Bowei has always focused on the research and development and manufacturing of helium mass spectrometer leak detectors. We will provide you with the most reliable leak detection solutions.