Moisture sensor for determining a humidity of a measuring medium in an environment of the humidity sensor and method for protecting a humidity sensor

摘要

It is a moisture sensor (100) for determining a humidity of a measuring medium (160) in an environment of the humidity sensor (100). The moisture sensor (100) has at least a humidity-sensitive sensor element (140) on. In this case, at least one property of the sensor element (140) of the moisture of the measuring medium (160). Also, the moisture sensor (100) a protective layer (150), by means of which the at least one sensor element (140) of the environment of the humidity sensor (100) is separable, so that a mass transfer between the measurement medium (160) and said at least one sensor element (140) exclusively via the protective layer (150) is carried out. In this case, the protective layer (150) is embodied for water (162) in the measurement medium (160) and to be permeable for other substances (164) in the measurement medium (160) to be essentially impermeable.