Airtightness tester plays an important role in many industries as a key sealing waterproof measurement tool. And in the field of airtightness testingDirect Pressure Airtightness Testercap (a poem)Differential Pressure Airtightness Testerare widely used and each has unique advantages. In this paper, we will make a comprehensive comparison of these two technology genres from three aspects: detection principle, usage scenarios, and performance performance to help users better understand the differences between them.
Ⅰ.Detection Principle
Direct Pressure Airtightness TesterAirtightness testing is performed by detecting changes in the absolute value of pressure at one end.However, this method is easily affected by environmental factors such as temperature and humidity. At the same time, structural parameters such as the volume of the product under test and the elastic properties of the material may also interfere with the test to some extent. These uncertain influences may make the test results produce certain fluctuation errors.
The differential pressure type airtightness tester can effectively eliminate (exclude) the influence error caused by the environmental conditions and the structure of the product under test by synchronizing the testing of the inspected product and the standard control product in the same environment.The test end and the standard end are in the same temperature and humidity environment, facing the same pressure loading background, so that the detected differential pressure more directly reflects the product's airtightness difference, free from the influence of other interfering factors, which ensures a higher test precision and can provide more accurate test results.
II. Scenarios of use
Direct Pressure Airtightness TesterEasy and practical to operate, it is suitable for airtightness testing of common products. Due to its relatively low cost, it is widely used in production lines of various sizes and in batch testing.
For example, in the consumer electronics industry, direct pressure testers are used to test the airtightness and watertightness of products such as Bluetooth headsets, GPS watches, tablets and smartphones.
Outdoor walkie-talkie waterproof test, use the instrument: JC-TC-50S straight pressure type airtight meter
In comparison.Differential Pressure Airtightness TesterWith higher precision, it is suitable for airtightness testing of high-end precision products. Differential pressure testers have better repeatability and are able to meet the needs of scenarios with higher requirements for hermeticity.
For example, for water-cooling plate airtightness testing of new energy vehicles, theDifferential Pressure Airtightness TesterIt is a commonly used tool. As a key component, the water cooling plate needs to ensure its internal sealing to ensure the proper functioning of the cooling system.Differential Pressure Airtightness TesterThe pressure difference inside the water-cooled panels can be accurately measured to assess their airtightness and ensure product quality.
III. Performance
Direct Pressure Airtightness TesterAlthough it is inexpensive and easy to realize small batch testing, its testing accuracy is usually 1Pa, which is poor.
(indicates contrast)Differential Pressure Airtightness TesterThe test accuracy is as high as 0.1 Pa with good repeatability, making it suitable for high-volume precision testing needs.Differential Pressure Airtightness TesterRepresenting the high-end direction of technological development, its accurate test results make it widely recognized in demanding industries.
IV. Summary
Direct Pressure Airtightness Testercap (a poem)Differential Pressure Airtightness TesterEach has its own advantages and disadvantages, and should be selected according to specific product characteristics and testing requirements.
The direct pressure tester is simple and practical to operate, and is suitable for general product testing; while the differential pressure tester has higher accuracy and repeatability, and is suitable for airtightness testing of high-end precision products with higher requirements.
Differential Pressure Airtightness TesterBy eliminating the influence of temperature, humidity, product volume and structure, it can provide more accurate test results, and its test precision resolution can reach 0.1Pa, which meets the needs of products with high requirements for airtightness testing.
With the continuous progress of technology, the airtightness tester industry will continue to develop in the future, and JCGK will continue to innovate and provide more accurate and reliable airtightness testing solutions for various industries.
