Title :
A novel smart resistive-capacitive position sensor
Author :
Li, Xiujun ; Meijer, Gerard C M
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
6/1/1995 12:00:00 AM
Abstract :
A novel smart resistive-capacitive angular position sensor is presented. The main advantages of this low-cost system are its simplicity, high stability and high reliability. A very linear oscillator is used in the processing circuit to convert the position quantity to a period-modulated signal which can be read out directly by a microcontroller. The system does not need an A/D converter. The nonlinearity of the smart angular position sensor system is less than ±0.3% (±0.9°) over the range of 270
Keywords :
angular measurement; computerised instrumentation; electric sensing devices; intelligent sensors; measurement errors; microcontrollers; position measurement; potentiometers; signal processing equipment; CMOS IC; angular encoder; linear oscillator; microcontroller; nonlinearity; period-modulated signal; position quantity; reliability; smart resistive-capacitive position sensor; stability; Circuit stability; Costs; Electrodes; Intelligent sensors; Microcontrollers; Oscillators; Position measurement; Potentiometers; Sensor systems; Signal processing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
