Method of determining masses of absorbing components of a sample

Details Method of determining masses of absorbing components of a sample Method of determining masses of absorbing components of a sample

1984-04-20

1986-03-18

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356437, G01J 100

Patent

active

045771057

ABSTRACT:
A test volume and a reference volume are irradiated by separate beams of an infrared source, and the two beams are subsequently fed to a detector in periodical alternation. The time constant of the detector is small compared to the period of this alternation. From the measured differences in intensity the masses of the absorbing components of a sample in the test volume are determined. During each period the value of the detector signal is sampled by an evaluation unit at least once while either the test beam or the reference beam is being present at the detector. For separate determination of different sample components, radiation of different defined frequency bands is fed to the detector during each period, and the intensity of the test beam is determined at each of the different frequencies whereas that of the reference beam is determined at one of these frequencies at least.

REFERENCES:
patent: 3805074 (1974-04-01), McCormack
patent: 3958122 (1976-05-01), Jowett et al.

Affiliated with

Also associated with

Rating

Method of determining masses of absorbing components of a sample does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of determining masses of absorbing components of a sample, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of determining masses of absorbing components of a sample will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2308068