Method for testing optical sensor, involves forming sensor for emitting electromagnetic radiation and for detecting reflected portion of radiation to determine measure of moisture

摘要

The method involves forming the sensor (100) for emitting an electromagnetic radiation (170) and for detecting a reflected portion of the radiation to determine a measure of moisture. A test device (190) is used, on which radiation emitted by the sensor is directed and at which the radiation is reflected. A structured layer (200) is arranged on the sensor to decouple the radiation from the sensor.