As an indispensable tool for people's communication, mobile phones have caused more and more problems because they are not waterproof or the waterproof test has not been done well. The waterproof ability of mobile phones has attracted more people's attention. Currently popularMobile phone waterproof testThe method is to use gasTightness testing equipmentTest and identify the IP waterproof rating of mobile phones.

Use HarisAir tightness testing equipmentIt is easy to test the waterproof performance of mobile phones andIP waterproof rating。 

The waterproof tester adopts the pressure drop method, which mainly inflates, pressurizes or evacuates (air) the workpiece under test as the medium, and then samples and analyzes the pressure, differential pressure or flow (compared with the volume) to determine whether the workpiece leaks. This method has a simple structure, convenient detection, fast, clean, accurate, low cost and high degree of automation, and has attracted much attention.

Waterproof tester, aliasAir tightness tester, using the latest foreign microcomputer chips, high-precision sensors and zero-leakage solenoid valves to ensure the accuracy of test results and the durability of the instrument.The microcomputer automatically controls the detection process and collects data, and uses the latest algorithms and specialized software to analyze and process the data, which compensates to the greatest extent the effects of temperature (including ambient temperature) during the detection process.It overcomes external interference and realizes direct pressure difference leak detection. The detection results are intuitive and have a high performance-price ratio. It is an ideal equipment for many airtight and waterproof testers.

Waterproof testerThe operation is simple and does not require special training. After setting the relevant parameters, the user only needs to press the run key to get the test data and pass/fail instructions.

Testing principle: The instrument inputs compressed air with accurate pressure control into the test piece, and then automatically shuts off the inflated air source. The solenoid valve accurately controls the air flow balance within the specified time, and then shuts off the solenoid valve that plays a balancing role (the test piece is connected to one end of the balance valve, and the other end is connected to a non-leakage standard part). The test piece and the standard part are connected through the same air path through precision differential pressure sensing.The device measures the differential pressure value between the standard part and the test piece within a specified time, and then obtains the pressure drop caused by the actual leakage of the test piece through temperature compensation, thereby determining whether the test piece is leaking.

For example, when testing the waterproofness of mobile phones, we use a relatively sealed tooling, put the mobile phone in, and then inject gas at a certain pressure. After the pressure stabilizes for a normal period of time, it is then passed through the Hirays test equipment.Waterproof testing equipmentAccurately calculate the pressure change in the tooling cavity, and then obtain the air leakage value.We can judge the waterproofness of a mobile phone based on the amount of leakage, IPX waterproof level.It is very convenient, pollution-free, high precision and high efficiency.