Smooth rotation by a galvanometer

Details Smooth rotation by a galvanometer Smooth rotation by a galvanometer

1989-02-21

1991-10-08

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318615, 318561, 318564, 356319, H02P 800

Patent

active

050557610

ABSTRACT:
A method and device for smoothly rotating a diffraction grating in a spectrophotometer by means of a galvanometer includes modifications in the software in the microprocessor which controls the galvanometer. The software modifications cause the galvanometer to rotate the grating in a series of discrete steps that stimulate a smooth minimum jerk rotation. The amount of rotation in each discrete step is calculated by the microprocessor.

REFERENCES:
patent: 3758762 (1973-09-01), Littman et al.
patent: 4172990 (1979-10-01), Everett
patent: 4533991 (1985-08-01), Georgis
patent: 4603286 (1986-07-01), Sakano
patent: 4669878 (1987-06-01), Meier
patent: 4706003 (1987-11-01), Nakashima et al.
Machinery Handbook, pp. 586-591, 1988.

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