A circuit is a common electronic component used to implement circuit functions in various electronic devices. Since circuits often operate in different temperature environments, such as high temperature or low temperature environments, high-low temperature resistance tests are required to ensure that the performance and reliability of the circuit will not be affected by temperature changes. This kind of test can test the electrical characteristics of the circuit at different temperatures, such as resistance, capacitance, inductance, etc., so as to ensure the normal operation and long-term stability of the circuit. In addition, circuits also need to withstand the effects of temperature changes on their materials and structures, such as thermal expansion and contraction, so high-low temperature resistance tests can also test the durability and stability of circuit materials and structures.
High-low Temperature Test Chambers are also widely used in circuit high-low temperature resistance tests to test the performance and stability of circuit boards in high-low temperature environments to evaluate their scope of application and service life.
experiment procedure
(1) Place the circuit board to be tested in the high-low Temperature Test Chamber, and adjust the temperature of the Test Chamber to the set high temperature value (eg 60°C).
(2) Keep the temperature stable for a period of time (such as 2 hours), and then adjust the temperature of the Test Chamber to the set low temperature value (such as -30°C).
(3) Keep the temperature stable for a period of time (for example, 2 hours), and then adjust the temperature of the Test Chamber back to the set high temperature value.
(4) Repeat the above process several times to test the performance and stability of the circuit board in alternating high-low temperature environments.
(5) During the test, the parameters of the circuit board can be monitored and recorded, such as current, voltage, resistance, power, etc.
(6) After the test is completed, evaluate the performance parameters and stability of the circuit board to determine whether it meets the requirements for use.
NBCHAO reminds you: the high-low temperature test parameters and test standards of different types of circuit boards may be different, and the specific test steps should be adjusted according to the product type and relevant standards. At the same time, sufficient safety measures need to be taken before the test to ensure that no safety accidents will occur during the test.
