Method and apparatus for passively trimming sawyer motors to cor

Details Method and apparatus for passively trimming sawyer motors to cor Method and apparatus for passively trimming sawyer motors to cor

1998-11-23

2000-10-03

Ramirez, Nestor

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Plural linear-movement motors

318135, H02P 774

Patent

active

061277908

ABSTRACT:
A system is disclosed for correcting for rotational errors in a linear motor system. A shunt resistor is coupled in parallel with a winding of a phase of a motor of the linear motor system to correct for rotational errors caused by differences in the magnetic characteristics of the motors comprising the linear motor system. Yaw error values for the motors are sequentially measured to determine the value of the shunt resistor, and its location on a winding of a phase motor of the linear motor system.

REFERENCES:
patent: 3445749 (1969-05-01), McManus
patent: 4853602 (1989-08-01), Hommes et al.

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