Adaptive grating rate control

Details Adaptive grating rate control Adaptive grating rate control

1976-05-10

1978-06-20

McGraw, Vincent P.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 93, 356 95, G01J 342

Patent

active

040958965

ABSTRACT:
In a double beam, optical-null type infra red spectrophotometer, an optical system including a movable dispersive optical element causes transmission of a spectrum of light in respective beams through an adjustable optical attenuator and through a sample and thence to a sensing circuit. The sensing circuit provides an error voltage having an amplitude proportional to the difference between the intensites of the beams passing through the sample and through the attenuator respectively. The position of the attenuator is adjusted in proportion to the integral of the error voltage to cause a reduction thereof while, in response to the magnitude of the error voltage in excess of a threshold value, there is a reduction in the rate of movement of the dispersive element.

REFERENCES:
patent: 3176576 (1965-04-01), Sundstrom et al.
patent: 3459479 (1969-08-01), Sundstrom et al.
patent: 3486823 (1969-12-01), Matthews
patent: 4000946 (1977-01-01), Way et al.

Affiliated with

Also associated with

Rating

Adaptive grating rate control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive grating rate control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive grating rate control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1131766