Distance Measurement With Inductive Coils

Author

Laskoski, Gustavo Theodoro ; Pichorim, Sérgio Francisco ; Abatti, Paulo José

Author_Institution

Grad. Sch. of Electr. Eng. & Appl. Comput. Sci., Fed. Univ. of Technol.- Parana, Curitiba, Brazil

Volume

12

Issue

6

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

2237

Lastpage

2242

Abstract

Distance measurement is an important tool in several applications. This article describes the development of a resonant inductive sensor for short (few centimeters) distance measurement. The sensor uses the principle of inductive coupling, where a transmitter coil (TX) induces a voltage in receiver coil (RX). The distance between TX and RX coils is determined as a function of the amplitude of the induced signal. Both coils are controlled by processing circuits and a microcomputer performs information processing and stores the measured data. In a setup for distances between 100-240 mm, experimental results showed a maximum standard deviation (σ) of 2.56 mm at 235 mm.

Keywords

distance measurement; inductive sensors; microcomputers; distance measurement; inductive coils; information processing; maximum standard deviation; microcomputer; receiver coil; resonant inductive sensor; transmitter coil; Coils; Detectors; Distance measurement; Inductance; Magnetic sensors; Signal to noise ratio; Distance measurement; inductive sensor; short distance sensor;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2012.2185789

Filename

6138896