Premium
Characteristics of linear actuator with semiclosed magnetic circuit excited by discharge current of capacitor
Author(s) -
Maeda Tsutomu,
Fujita Hiroshi
Publication year - 1993
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391130813
Subject(s) - actuator , capacitor , electromagnetic coil , excited state , control theory (sociology) , current (fluid) , current source , physics , voltage , mechanics , computer science , electrical engineering , engineering , atomic physics , thermodynamics , control (management) , artificial intelligence
The simple structured linear actuator considered in this paper is based on the model, called the single‐phase oscillating motor, proposed by Jayawant. Reports have already been made on the static and kinetic characteristics of the actuator of the model proposed by the authors for two cases considered and not considered the magnetic saturation when it was driven by an ac source. Although the theoretical procedure to calculate the characteristics is very simple, the calculated results in both cases have shown close agreement with the experimental ones. To improve the actuator for practical use, some methods will be considered and one of them is to use a dc source instead of an ac source. Using the charged capacitor as a dc supply, an instantaneous large current flows easily in the exciting coil in comparison with the case of an ac supply. In this paper, qualitative explanation of the ring motion and calculated results of the ring speed which have good agreement with experimental results are reported.