LED sensors in an in-circuit test fixtureįor functional fixtures, LED to test can also be on the final product enclosure for "as used" functional testing. The sensors are wired to the fixture's base so that the measurement results can be read through the tester. Fiber-optic probes are placed near the LEDs to test and connected to LED sensors. In the case of ICT fixtures, LED to be tested are usually soldered to a PCB. LED testers can be used in both functional and in-circuit test fixtures. The LED light characteristics are analyzed by a sensor and the results are returned as a voltage that can then be software-interpreted (or not) to get the light intensity, color, correlated colour temperature and other useful information. They are available in a variety of models with some limited to a specific task such as detecting a particular color or checking if a LED is on or off. LED testers are used to measure hue (color) and intensity of a LED. Integrating LED tests in functional and in-circuit test fixtures Fast and efficient testing of LED in both functional and in-circuit test fixtures
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