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.

fYear

2006

fDate

24-27 April 2006

Firstpage

655

Lastpage

660

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE

Conference_Location

Sorrento

ISSN

1091-5281

Print_ISBN

0-7803-9359-7

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2006.328662

Filename

4124409