Apparatus for calibrating an optical null spectrophotometer

Optics: measuring and testing – Range or remote distance finding – With photodetection

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

250214L, 324132, G01J 342, G01R 1510

Patent

active

041012194

ABSTRACT:
A double beam optical null spectrophotometer having sample and reference optical beam paths, a detector common to both paths, and an attenuator feedback loop from the detector for adjusting the position of an optical attenuator in the reference beam path to balance the energy in the two paths. The slider of an attenuator transmitting potentiometer follows the position of the optical attenuator and a signal level sensitive impedance network connected to the slider calibrates the potentiometer such that an output signal therefrom indicates the true transmittance of a sample in the sample beam path over a range of transmittance values from zero to one hundred percent transmittance.

REFERENCES:
patent: 2492901 (1949-12-01), Sweet
patent: 2658180 (1953-11-01), Boisblanc
patent: 3504977 (1970-04-01), Matthews
patent: 3525942 (1970-08-01), Boronkay et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for calibrating an optical null spectrophotometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for calibrating an optical null spectrophotometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for calibrating an optical null spectrophotometer will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-336244

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.