DocumentCode
1288689
Title
A study of a high-resolution linear circuit for capacitive sensors
Author
Karlsson, Nils
Author_Institution
Div. of Sensor Technol., Swedish Defence Res. Establ., Linkoping, Sweden
Volume
48
Issue
6
fYear
1999
fDate
12/1/1999 12:00:00 AM
Firstpage
1122
Lastpage
1124
Abstract
A circuit for capacitance measurements is described. The circuit permits offset capacitance compensation using a dc voltage. The electronic circuitry with its testing is described. The output voltage is a linear function of the capacitance measured. Experimental data show good agreement with values predicted by the linear formula. Experiments show it is possible to measure capacitance changes with a resolution of a few femtofarads (fF)
Keywords
capacitance measurement; capacitive sensors; capacitance measurement; capacitive sensor; linear circuit; offset compensation; Capacitance measurement; Capacitive sensors; Capacitors; Circuit testing; Detectors; Electronic equipment testing; Linear circuits; Phase detection; Ultrafast electronics; Voltage;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.816125
Filename
816125
Link To Document