The working principle and application of a high-precision airtightness tester

A high-precision airtightness tester is a device specifically designed to test the sealing performance of products. It can accurately measure the gas leakage of the product within a certain period of time, thereby evaluating the airtightness of the product. This type of equipment has a wide range of applications in many industries, such as automobiles, refrigeration, medical devices, electronic products, aerospace, etc.

1. Working principle of equipment

The high-precision airtightness detector mainly uses pressure changes to detect leaks. Specifically, it first inflates the product to be tested, then isolates the product and observes the pressure changes over a period of time. If the product is completely airtight, then the pressure should remain unchanged; If there is a leak, the pressure will decrease. By accurately measuring the changes in pressure, the leakage amount can be calculated.

2. Equipment characteristics

1、 High precision: Modern high-precision airtightness detectors are usually able to measure small leaks, such as a few cc/min or lower. This is very important for products that require high sealing performance.

2、 Automation: High precision airtightness testers typically have automated testing capabilities, allowing for unmanned continuous product testing.

3、 Multifunctional: In addition to basic leak detection functions, some advanced devices also have other functions, such as automatic gas filling, automatic exhaust, data recording, etc.

4、 Easy to integrate: High precision airtightness testers are usually designed to be very compact and can be easily integrated into production lines.

3. Application field

The application fields of high-precision airtightness detectors are very extensive. In the automotive industry, it is used to test the airtightness of components such as fuel systems, cooling systems, and braking systems. In the medical device industry, it is used to test the airtightness of products such as syringes, blood bags, and catheters. In the electronics industry, it is used to test the airtightness of products such as mobile phones, computers, and headphones.

Overall, high-precision airtightness testers are a very important quality control tool that can ensure the airtightness performance of products, thereby ensuring their performance and safety. With the development of technology, we expect this type of equipment to be more precise and automated, providing better quality control services for various industries.