Title :
A low-cost, stable reference capacitor for capacitive sensor systems
Author :
Toth, Ferry N. ; Bertels, Dorus ; Meijer, Gerard C M
Author_Institution :
Fac. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
4/1/1996 12:00:00 AM
Abstract :
A low-cost reference capacitor has been developed for capacitive sensor systems. The capacitance has been constructed using low-cost material. Over a temperature range from -25 to +75°C the temperature coefficient is less than 18 ppm/°C
Keywords :
capacitance measurement; capacitors; electric sensing devices; measurement standards; position measurement; -25 to 75 C; PCB; capacitive sensor systems; ceramic spacer; circular cross-capacitor; linear Thompson-Lampard capacitor; low-cost reference capacitor; nonidealities; parallel-plate capacitor; position sensors; stable reference capacitor; temperature coefficient; Capacitance; Capacitive sensors; Capacitors; Contamination; Dielectric substrates; Electrodes; Permittivity; Stability; Temperature distribution; Temperature sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
