A variable reluctance sensor

Author

Lemarquand, Guy

Author_Institution

Savoie Univ., Annecy

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3827

Lastpage

3829

Abstract

The author presents the characteristics and the performance of a novel variable-reluctance sensor. He describes two designs for this inductive transducer which are very easy to realize. They are based on two shapes, both of which generate a sinusoidal variation of the air gap and therefore an inversely sinusoidal variation of the reluctance. The first shape utilizes an off-centering rotor, the second a buckled surface. The performance, resolution (15 bits), and accuracy (±3 of arc) of the prototype are presented. The prototype demonstrates the good measurement performance of this low-cost shaft-angle transducer, as well as its robustness, reliability, and stability

Keywords

angular measurement; magnetic circuits; reliability; transducers; accuracy; air gap; buckled surface; designs; inductive transducer; off-centring rotor; performance; prototype; reliability; resolution; robustness; shaft-angle transducer; stability; variable-reluctance sensor; Coils; Geometry; Magnetic cores; Magnetic sensors; Mechanical sensors; Sensor phenomena and characterization; Stator cores; Temperature sensors; Transducers; Wearable sensors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42446

Filename

42446