Non-spectrophotometric measurement of analyte concentrations and

Details Non-spectrophotometric measurement of analyte concentrations and Non-spectrophotometric measurement of analyte concentrations and

1995-02-02

1998-10-06

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356405, G01N 2135

Patent

active

058180443

ABSTRACT:
Improvement methods and apparatus for determination of optical properties of objects have been developed. The apparatus and methods of the invention provide an analog of color perception of human vision, preferably in the near infrared region, replacing spectrophotometers and narrow band sources used in other non-invasive near infrared detection methods. A plurality of detector units are used, each covering a broad and overlapping region of the detected spectrum, paralleling color perception and colorimetry. The improvements are primarily concerned with improving the signal-to-background (or noise) ratio such that the data stream is improved. These improvements use congruent sampling, comparison of different data streams from different sample portions or filter sets, using an interrogation system with sufficient speed to allow testing of arterial blood, and using a filter with a spectral structure. In some circumstances, a neural net is used for analysis, allowing the system to learn. A novel method for background discrimination is also described.

REFERENCES:
patent: 5321265 (1994-06-01), Block

Affiliated with

Also associated with

Rating

Non-spectrophotometric measurement of analyte concentrations and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-spectrophotometric measurement of analyte concentrations and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-spectrophotometric measurement of analyte concentrations and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-80936