Novel dew point hygrometer fabricated with inkjet printing technology

This paper reports a novel, first time made Dew Point Hygrometer (DPH) detector, which was fully fabricated with the inkjet printing technology. This type of the sensor operation was already known in DPH which is based on a silicon complex dew detector (Jachowicz and Senturia, 1981; Weremczuk et al., 2006) [1], [2]. However, in our device the silicon substrate has been replaced by a thin, flexible Kapton foil. All components integrated in the detector: the interdigitated capacitive sensor electrodes, the thermoresistor and the heater were made by ink-jet printing technology. All individual elements of the printed dew point hygrometer detector have been characterized, and finally, their measurement features were described.