Over the past two decades, we have witnessed the transformation of communication technology from 1G to 4G.The next generation of communication technology-5G is also coming soon.The information transmission rate of 5G is ten times faster than 4G, which is believed to bring a new experience to users.The high-speed information transmission capability of 5G also places higher requirements on 5G base stations and 5G antenna equipment.Whether it is a base station or a mobile terminal, the antenna acts as the middleware for transmitting and receiving signals.The rigid conditions for 5G antennas will become more stringent.
Because 5G antennas are usually used outdoors in harsh environments, it is necessary to conduct waterproof testing on 5G antennas.Only if the antenna is well sealed can it withstand the wind and rain of the environment.This can ensure that the transmission speed of the system is not affected.Therefore, base station antenna or 5G antenna manufacturers will conduct waterproof testing or sealing tests on their products.
Picture: Hirays HC waterproof tester
Today Hirays Technologyfor everyone5G antennaAir tightness testing method/防水测试过程，The picture below is the base station antenna we want to test.As can be seen from the appearance of the picture, the product is rectangular and made of plastic. The overall sealing effect is relatively good. What we want to test is whether the connection between the screw part and the plastic product is completely sealed.Because the product does not have any inflatable holes, we need to make a copy mold according to the shape of the customer's product.By injecting a certain amount of compressed air into the mold, our air tightness detector can observe the changes in air pressure in the mold in real time to determine whether there is leakage in the product.
Figure: 5G communication wires
The Hirays air tightness detector tests quickly. The test time will vary depending on the size of the product. The general test time is between 10S-20S.According to customer requirements, the test time of this test product is 4s, the voltage stabilization time is 3s, the inflation time is 3s, and the complete time to test a product is 10s.
According to the customer's waterproof level requirement of IP67, a test pressure of 10kpa is set for the customer. This pressure corresponds to the customer's waterproof level.Hirays air tightness detectors are divided into low-pressure instruments, standard pressure instruments, and high-pressure instruments according to different test ranges. The lower the pressure range, the higher the accuracy of the instrument.The standard instrument range of Hirays air tightness detector is -60~150kpa, and the test accuracy is better than 1pa. The instrument with this range is suitable for waterproof testing of most products: such as waterproof testing of electronic wearable products, air tightness testing of instant messaging, sealing testing of automobile parts, etc.
Figure: Details of air tightness testing-mold
After setting the product mold and test parameters, you can connect the air tightness detector and tooling to the air source and power supply.After setting the product test program on the instrument, you can start testing the product.Before starting a full inspection of the product, the tester needs to inspect two pre-prepared products (one is a product with air leakage and the other is a qualified product). By testing these two products, we can see whether the test results of our air tightness detector are consistent with the actual condition of the product.If they are consistent, then start the full inspection. If they are not consistent, check the instrument and test tooling to ensure that the instrument and test tooling are normal before starting the air tightness test.
Figure: 5G antenna air tightness testing equipment-air tightness detector + testing tooling
Advantages of using Hirays air tightness testing instruments:
1. High-sensitivity pressure sensing and adjustment unit, combined with advanced differential pressure software algorithm, the minimum resolution can reach 0.1Pa. This algorithm has obtained a national patent
2. Patented technology independently developed by Hirays,"IVT pneumatic sealing valve island", greatly improving the test accuracy, ensuring the stability of the instrument, and the inflation speed is also greatly improved.
3. Multiple test functions: The instrument integrates two pressure forms, positive and negative, and 8 test methods: two pressure forms and five test methods can be programmed into more than 20 test functions.
4. It has more than 200 groups of subroutines. Each group of subroutines can be programmed independently and can be selected or combined to meet various complex testing requirements.
5. Full-touch large-screen intelligent operating system, graphical UI design based on the detection process, the operation interface is simple and clear, easy to teach and learn
6. A variety of pressure adjustment components and ranges are optional, with a wide air pressure range (-80KPA&-1MPa) optional.Optional electronic pressure regulating valve can realize multiple sets of pressure sequential testing
7. Multiple communication interfaces: built-in RS232 serial port, RJ45 network port, USB communication interface, LTP external I/O control port, supporting multiple communication protocols
8. Optional barcode scanning function and printer are available to facilitate product data management and quality traceability. The instrument history record can reach up to 200,000 items and can be exported to the computer in batches.
9. The standard volume identification function can automatically identify the volume of the sample to be tested, and measure and judge the leakage rate in a volumetric manner.
10. Ultra-high stability and ease of use have passed the rigorous test of the market.
11. A variety of accessories are available, including inflatable bypass, quick connector, and standard leak hole. At the same time, the instrument supports third-party calibration and can issue a calibration report.
Figure: HC air tightness detector parameter table
Related reading:Hirays Technology-Sharing of outdoor camera IP67 waterproof level test method
