Precision positioning control apparatus and precision positionin

Details Precision positioning control apparatus and precision positionin Precision positioning control apparatus and precision positionin

1996-03-01

1998-09-01

Trammell, James P.

Boots, shoes, and leggings

318592, 318593, 318560, G05B 1118

Patent

active

058019391

ABSTRACT:
A precision positioning control apparatus includes a coarse positioner, a fine positioner, a displacement totalizer for totaling the displacements of the two positioners, a total displacement detector for producing a total displacement signal, a comparator for producing an error signal, a coarse positioner adjuster for adjusting the error signal and inputting the adjusted signal to the coarse positioner, and fine positioner adjuster for adjusting the error signal and inputting the adjusted signal to the fine positioner. The coarse position adjuster includes a gain element, a transfer element, a limitter, an integrator, a gain adjuster and an adder.

REFERENCES:
patent: 4988936 (1991-01-01), Schneider
patent: 5119005 (1992-06-01), Tsai et al.
patent: 5262707 (1993-11-01), Okazaki et al.
Autumn 1991 Congress of Japanese Society of Precision Engineering, (pp. 411-412), Oct. 1, 1991.
"Specialist Committee for Survey of Industrial Application of Robust Digital Control and Digital Control" Electrical Association Technical Report (Section II), No. 378, Aug. 1991.
Osamu Horiuchi, et al., "A Study on High Precision Positioning for the Wheel Head of a Cylindrical Grinder", The 1992 Symposium of the Society of Grinding Engineers, Sep. 11, 1992.

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