Portable infrared spectrophotometer

Details Portable infrared spectrophotometer Portable infrared spectrophotometer

1983-07-05

1985-07-02

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

G01N 2135

Patent

active

045270627

ABSTRACT:
A portable infrared spectrophotometer for nondestructive testing of coatings, plastics, rubber and other organic construction materials. A single source of infrared light is formed into two beams. One beam is directed to the surface of a sample where it is reflected off the surface of the sample at least four times. The other beam follows a similar path but bounces off a neutral surface. The two beams are combined and focused onto a detector. The output of the detector is proportional to the energy absorbed by the surface of the test sample. A pen recorder is used to provide a graphic display of the spectrum generated.

REFERENCES:
patent: 3091690 (1963-05-01), McHenry
patent: 3332315 (1967-07-01), Wilks, Jr.
patent: 3471698 (1969-10-01), Mausteller
patent: 3524983 (1970-08-01), Voelz
patent: 3582209 (1971-06-01), La Rosa et al.
patent: 3669545 (1972-06-01), Gilby
patent: 3902807 (1975-09-01), Fleming et al.
patent: 4169676 (1979-10-01), Kaiser
patent: 4303859 (1981-12-01), McCue
P. S. Kireev et al., "Fast Radiation Detectors Using Photoresistive Cd.su Hg.sub.l-x Te", Soviet Physics-Doklady, vol. 15, No. 8, (Feb. 1971), pp. 755-757.

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