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False assumption: Aluminium oxide moisture sensors are not temperature compensated which makes them unreliable.
The truth: Any solid-state capacitive sensors will react to temperature changes, not just aluminium oxide sensors. However, all Michell Instruments’ ceramic moisture sensors have a built-in temperature compensation to make sure the readings remain in specification regardless of temperature variations.
In fact, all moisture measurement technologies – including quartz crystal and TDLAS – require a temperature-stabilized environment to provide reliable and accurate readings. This is why in many process applications, the sensing elements for TDLAS and QMA analyzers are located in heated ovens and often measure at elevated temperatures, which make them costly to run compared to the ceramic moisture sensors.
Instruments that use ceramic moisture sensors:
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