Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1991-04-17
1995-03-21
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318653, 318687, G05B 106
Patent
active
053999525
ABSTRACT:
An electromagnetic drive system includes a motor having a first motor section movable relative to a second motor section along a motion axis. The second motor section has three excitation coils. The first motor section includes a magnetic circuit generating a magnetic field in the excitation coils. The first motor section also includes a short-circuit winding for only high-frequency induction currents. This short-circuit winding is magnetically coupled to the excitation coils. The degree of electromagnetic coupling of at least one excitation coil depends on the position of the first motor section relative to the second motor section. The short-circuit winding provides a position-dependent electromagnetic coupling between the center excitation coil and the two outer excitation coils. The position-dependent coupling can be detected by superimposing a high-frequency detection signal on the excitation system for the center coil and by detecting currents induced in the two outer coils by the high-frequency detection signal. Thus, a compact drive system with a built-in position detector is obtained.
REFERENCES:
patent: 3870931 (1975-03-01), Myers
patent: 4363980 (1982-12-01), Peterson
patent: 4616153 (1986-10-01), Lee
patent: 4652820 (1987-03-01), Maresca
patent: 4853604 (1989-08-01), McMullin et al.
patent: 5025213 (1991-06-01), Dobler et al.
de la Rambelje Peter H.
van Alem Antonius M.
Blocker Edward
Franzblau Bernard
Shoop Jr. William M.
Sircus Brian
U. S. Philips Corporation
LandOfFree
Electromagnetic drive system with integral position detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic drive system with integral position detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic drive system with integral position detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1151564