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

Volume

44

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

768

Lastpage

770

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;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.387328

Filename

387328