Title :
A Distance Compensated Telemetric Humidity Sensor Based on the Parasitic Capacitance Variation
Author :
Marioli, Daniele ; Sardini, Emilio ; Serpelloni, Mauro ; Taroni, Andrea
Author_Institution :
Dept. of Electron. Autom., Brescia Univ.
Abstract :
In this article a telemetric system for relative-humidity measures is proposed. The contactless transmission problem is analyzed also when the distance between readout circuit and sensing circuit changes. Three hydrophilic polymers are deposited on parasitic capacitance of sensing system. The sensitivities to the relative humidity and distance are calculated. The measurement method has been tested in the laboratory and the experimental results are reported
Keywords :
humidity measurement; humidity sensors; telemetry; contactless transmission problem; humidity measurement; hydrophilic polymers; parasitic capacitance variation; relative-humidity measurement; telemetric humidity sensor; telemetric system; Biomedical measurements; Capacitance measurement; Capacitive sensors; Circuits; Humidity measurement; Magnetic field measurement; Parasitic capacitance; Polymers; Sensor systems; Telemetry; environmental monitoring; food quality inspection; humidity measurement; inductive telemetry;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328662
