Application of high and low temperature test chamber in communication industry

In recent years, with the continuous development of the optical communication market, the demand for optical components such as optical Transceiver and SFP optical modules has also increased sharply. However, optical transceivers generate a lot of heat during use, especially when the installation site is usually located outdoors, and any too high or too low temperature may affect its normal operation, which has become a problem that the production enterprise must solve. In order to solve this problem, high and low temperature impact test chamber came into being.

First, the connection between high and low temperature impact test box and optical fiber transceiver

The high and low pressure test chamber can quickly provide a high and low temperature test environment and is very easy to move. It is able to test a very wide temperature range, covering the range of -75 °C to +250 °C, so it is now widely used in the optical communications industry.

The role of the high and low temperature cycle shock tester is to simulate various possible situations by placing the fiber optic transceiver in different temperature environments for testing. In this way, manufacturers can better understand the adaptability and stability of fiber optic transceivers in different environments, thus providing an important reference for the production and use of products.

Second, the optical fiber transceiver needs to be tested for temperature reasons:

Optical communication devices need to be tested at the component level before leaving the factory, mainly including the electrical performance test, failure analysis, reliability assessment of the key components in the electrical work of the optical fiber transceiver, such as temperature cycle test and temperature shock test, high and low temperature cycle impact test machine compared with the traditional temperature test box, the rise and cooling rate is faster; A single transceiver among many components can be isolated for high and low temperature impact without affecting other surrounding devices.


Three, optical transceiver temperature test steps

The transceiver and temperature sensor under test are placed in a custom test area

The operator sets the temperature range to be tested

Start the equipment according to the program, use the air compressor to pass the dry and clean air into the refrigerator for low temperature treatment, and then the air reaches the heating head through the external pipeline for heating; The airflow enters the test chamber through the heat flux

The temperature sensor in the test area can monitor the current chamber temperature in real time, and the high and low temperature cycle impact test machine comes with an overheat temperature protection system. The factory setting temperature is +250°C, and the operator can set the high and low temperature limit point according to actual needs. When the temperature reaches the set temperature, the test machine will automatically stop.