Analysis of a permanent magnet dot matrix printer head

Author

Boglietti, A. ; Chiampi, M. ; Tartaglia, M. ; Cattaneo, S. ; Contessa, M. ; Garramone, A.

Author_Institution

Dipartimento di Elettrotecnica, Politecnico di Torino, Italy

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3587

Lastpage

3589

Abstract

An analysis of a permanent-magnet dot-matrix printer head is presented. A modeling approach combining the use of a reluctance network with the finite-element method is proposed. The model makes it possible to estimate the effects of the interaction among different windings (crosstalk) acting on different needles and to predict the operating performance. The reluctance model is employed to get a rough estimate of the magnetomotive forces of the permanent magnet and of the exciting windings. The finite-element analysis gives flux-current characteristics and force-stroke curves useful for optimizing the magnetic circuit. Some experimental results confirm the utility of the approach

Keywords

finite element analysis; magnetic heads; matrix printers; permanent magnets; crosstalk; exciting windings; finite-element method; flux-current characteristics; force-stroke curves; magnetomotive forces; modeling approach; operating performance; permanent magnet dot matrix printer head; reluctance network; Coils; Finite element methods; Magnetic analysis; Magnetic heads; Needles; Permanent magnets; Printers; Saturation magnetization; Switches; US Department of Transportation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42372

Filename

42372