Title :
Design and evaluation of linear DC motor for pen recorder
Author :
Wakiwaka, H. ; Yajima, H. ; Yamada, H. ; Oda, J.
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
We designed a pen recorder with a linear dc motor (LDM) which has high speed response. The magnetic field of the LDM was analyzed using the finite element method (FEM). We suggest a design method for thin LDMs (e.g. 13 mm thick) with a long stroke (e.g. 100 mm). With this method, we designed an LDM that has a thrust constant of 2.67 N/A. We evaluated LDM designs in terms of mechanical time constants. We simulated the indicial responses of the LDM that was controlled with a displacement feedback controller. We were able to establish that the mechanical time constant is an appropriate evaluation index
Keywords :
DC motors; finite element analysis; linear motors; recorders; recording; small electric machines; design; displacement feedback controller; evaluation index; finite element method; high speed response; linear DC motor; magnetic field; mechanical time constant; pen recorder; simulation; thrust constant; Coils; DC motors; Design methodology; Magnetic analysis; Magnetic circuits; Magnetic fields; Magnetic flux; Magnetic flux density; Permanent magnets; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
