Title :
Digital Converter for Differential Capacitive Sensors
Author :
Mohan, N. Madhu ; Shet, Amol Ravikant ; Kumar, V. Jagadeesh
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras
Abstract :
A capacitance to digital converter that directly translates the changes in a differential type capacitive sensor to a proportional digital value is described in this work. The proposed method employs a suitably modified, dual-slope, analog to digital conversion technique. Error analysis and results obtained from a prototype built around a microcontroller establish the efficacy of the proposed method
Keywords :
analogue-digital conversion; capacitive sensors; microcontrollers; analog-to-digital conversion; capacitance-to-digital converter; differential capacitive sensors; microcontroller; Analog-digital conversion; Capacitance; Capacitive sensors; Capacitors; Circuits; Control systems; Digital systems; Frequency conversion; Instruments; Timing; Capacitance to Digital Converter; Digital Converter; Dual Slope ADC;
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.2006.328156
