Optics: measuring and testing – Sample – specimen – or standard holder or support
Patent
1977-02-28
1978-12-12
Corbin, John K.
Optics: measuring and testing
Sample, specimen, or standard holder or support
356432, G01N 2124
Patent
active
041293851
ABSTRACT:
A photoacoustic cell for analyzing solid and quasi-solid samples and which includes a table for holding a sample to be analyzed and which is movably disposed in the cell housing and positioned in a sample test position to form a part of the cell chamber in which the sample is to be analyzed or tested. The cell chamber is formed having a window through which a light source may pass onto the sample whereby energy is released inside said cell chamber characteristic of the light source and is sufficient to provide a signal characteristic of the absorbance of the sample and which is sensed by a microphone in said chamber. At the completion of the sample test, the table may be moved to a sample load/unload position for discharge of the tested sample and preparatory to having a subsequent sample placed thereon for analysis.
REFERENCES:
patent: 3948345 (1976-04-01), Rosencwaig
patent: 4028932 (1977-06-01), Rosencwaig
McClelland et al., "Photoacoustic Spectroscopy With Condensed Samples," Applied Optics, vol. 15, No. 11, Nov. 1976, pp. 2658-2662.
Emary Robert J.
Rosencwaig Allan
Corbin John K.
Gilford Instrument Laboratories
Rosenberger R. A.
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