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MW Component Test
Microwave Electronic Component Test Application
RF and Microwave High power Components need to be tested to make sure the components are within safe operating limits and to make reliability predictions. The Osensa system shown here is usually used to measure case temperature and component temperature inside. Conventional temperature with metal sensors were heating up from the strong RF and Microwave fields so Fiber Optic Probes are used which are immune to these electromagnetic fields. Different dielectrics in these components respond differently to each field and heating is controlled by power level, duration and the field.
Component temperature with high power ferrites and other components are often checked initially with Infared when the cover is off and area to be images is visible. The problem with taking the cover off is that the magnetic field may be different and the components will experience air cooling which may not be present when the cover is on. To get accurate answers with the same magnetic field and stagnant air, it is often better to test with fiber optic probes which are immune to the magnetic field. Fiber Optic probes are also used for applications with obstructed views or when you need to measure temperature between component bottoms and pub if there is room or a gap.
