Nowadays, water resistance has become an essential feature of high-end audio, soAudio air tightness testingThis problem has become the focus of manufacturers, and strict waterproof testing is required to meet the audio waterproof level standards.The customers seeking solutions from Hairuis Technology this time specified their needs.Hemispheric audio air tightness testingInstrument, the following are the solutions provided by Hairis Technology to customers.
one,Customer testing needs
The speaker that the customer needs to inspect is hemispherical in shape. The inspection speed of each speaker needs to be controlled at 10-15 seconds. The air tightness test must be carried out on the premise of ensuring that the exterior and interior of the speaker are not damaged.In addition, the customer proposedHemispheric audio air tightness testingThe instrument should collect and integrate the test result data so that customers can track the sealing condition of the speakers and provide data reference for later production adjustments.
two,Hemispheric audio air tightness testingdifficulty
This speaker has a hemispherical shape, and the sound holes are distributed in the curved shape of the speaker.Air tightness testing poses certain difficulties.Secondly, the sound needs to be non-destructively tested, and indirect testing must be used to protect the appearance of the sound.
This time Hairis TechnologyDetectionproducts
three,A brief introduction to Hai Ruisi technology solutions
In order to solve the difficulty in testing the air tightness of hemispheric speakers, Hairis Technology customized a mold for it before testing, and put the speakers into the mold. After the upper and lower molds are closed, a sealed testing space will be formed. The mold can alsoProtect the speakers from damage during testing.At this time, after the tooling connected to the mold is started, a certain volume of gas is injected into the mold through the air source, and then the supply of compressed air is cut off, and it remains stationary for a period of time to stabilize the pressure.Hairis TechnologyThe air tightness detection system will monitor the air pressure in the mold.The leakage is used to determine the tightness.
When the speaker reaches the required waterproof level, the pressure value and leakage value displayed on the instrument will not fluctuate significantly, and the instrument test result will display OK, indicating that the speaker has passed the air tightness test.When the speaker is not sealed, the pressure value will drop and the leakage value will rise. If the value exceeds the standard value, the instrument test results will showNG, indicating that the air tightness test failed.During this period, all detection data will be recorded by the air tightness detector, and the detection speed is within6-8seconds, meeting the customer’s speed requirements.
Four,Hairis TechnologyHemispheric audio air tightness testinginstrument display
five,Hemispheric audio air tightness testingInstrument details display
six,Related function description
1, This tester can support leakage test methods such as leakage test, obstruction test, positive pressure test, negative pressure test, etc. The test range is wide, and users can choose according to their own testing needs.
2 , Using a large-size touch screen as the human-machine interface, you can easily monitor the test results and set various parameters during the waterproof test process.
3 . It has an alarm function for qualified and unqualified products, which can eliminate the possibility of manual misjudgment and misdetection.
4 ,bring4switch input and8The relay output can be controlled by external sensors and switch buttons, and can control external relays, solenoid valves and other actuators to facilitate full automation of testing.
5 , the tester has200segment user subroutines. By setting the parameters of the subroutine on the touch screen, the user can connect different subroutines in series to form a test process, and use the leakage meter's ownI/OThe interface allows the leak meter to receive control signals from external sensors and control external actuators (relays, solenoid valves, etc.).Thereby automating the testing process.
6, with test data recording function, the test data can be downloaded toUdisk and displayed via computer.
7, with barcode scanning function, which can track and record defective products and repair status; host computer function, etc.
Hairis TechnologyHemispheric audio air tightness testinginstrument function interface
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