Walkie-talkies are a two-way mobile communication tool. There are currently three major types of walkie-talkies on the market: analog walkie-talkies, digital walkie-talkies, IP walkie-talkies, etc.Walkie-talkies also have their own applicability according to changes in the scene, and people have very high safety requirements for them, so manufacturers will conduct air tightness tests on them before leaving the factory.Due to its precise structure, different manufacturers have their own methods for air tightness testing of walkie-talkies.Hairis Technology has also done in-depth research on the air tightness testing of walkie-talkies, developed a special air tightness testing instrument, and put it into the production line.

So, let’s take a look at the detection information of this walkie-talkie:

Air tightness tester for walkie-talkies

1. Appearance display of the walkie-talkie

1. This is an ordinary walkie-talkie. Its shape is an irregular rectangular parallelepiped. At the top are several rows of buttons for dialing, and at the top is an electronic display. In the middle of the buttons is the earpiece area for receiving sound, and below the buttons is the microphone part for intercom;

2. The entire walkie-talkie is made of black sealed shell material. The back of the walkie-talkie is the area where the battery is placed. This area is concave toward the inside;

walkie talkie

3. The overall structure of the walkie-talkie is relatively precise, and direct detection methods cannot be used to fill the interior with gas. Such an appearance is detrimental to the accuracy of the detection results.

2. Breakthrough in the detection difficulties of walkie-talkies

1. Based on the appearance of the walkie-talkie, Hairis Technology specially customized a mold specifically for holding the walkie-talkie. Put the back of the walkie-talkie upward into the mold, and the entire shape will snap into place. During the inspection, the upper and lower molds will be closed to form a closed space. The instrument will fill the inside of the mold with impurity-free gas through the conduit, so that the air tightness of the walkie-talkie can be judged by the saturation of the air inside the mold;

Air tightness testing tooling mold for walkie-talkie

2. Put the radio into the tooling mold and connect it to our instrument. There is a valve island, gas tank and other components inside the instrument as well as the program we have set. After the connection is made, press the start button when testing the wire.At this time, the upper and lower molds begin to close, and clean gas without impurities is filled into the mold. The instrument display screen will judge the air tightness of the intercom based on the gas saturation inside the mold.

Air tightness detection details of walkie-talkie

3. If the intercom is not sealed and air leakage occurs, the leakage value displayed in the instrument will become larger and larger, and the pressure value will decrease at the same time.At this time, you can determine whether the intercom is leaking, and the instrument test result will also show NG, which means the air tightness test failed.If the tested walkie-talkie does not leak, the gas in the tooling mold will be in a constant state after inflation. The pressure value and leakage value displayed on the instrument are also stable. The instrument test result will display OK, indicating that the air tightness test has passed.

Demonstration of the air tightness testing process of walkie-talkies

3. Parameter table of intercom air tightness detector

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