Computer-controlled olfactometer

Details Computer-controlled olfactometer Computer-controlled olfactometer

1998-06-04

2000-05-30

Larkin, Daniel S.

Measuring and testing

Gas analysis

Odor

G01N 126, G01N 138, G01N 3100

Patent

active

060678429

ABSTRACT:
An olfactometer has a sniffing port, a sample supply for generating a sample flow constituted by a carrier gas and sample head space from a saturation chamber and for supplying the sample flow to the sniffing port, a carrier gas supply, and mixer for predetermined dilution of the sample flow. The carrier gas supply includes mass flow controllers with variable flow rates disposed before the saturation chamber for providing variable carrier gas flow to the saturation chamber. A multiplicity of capillaries of different diameter connect the mixing means with the sniffing port via individual injectors. A computer may be interphased with the olfactometer to regulate the amount of sample and/or carrier gas in the sample flow.

REFERENCES:
patent: 2837912 (1958-06-01), Moncrieff
patent: 3618359 (1971-11-01), Randebrock et al.
patent: 3882713 (1975-05-01), Nishida et al.
patent: 3902851 (1975-09-01), Dravnieks
patent: 4520651 (1985-06-01), Litman
patent: 5198155 (1993-03-01), Etzweiler et al.
patent: 5627307 (1997-05-01), Hayashi
patent: 5767385 (1998-06-01), Bundy et al.
S. F. Hallowell et al., Qualitative/Semi Qualitative Chemical Characterization of the Auburn D1 Factometer. Cargo Inspection Technologies, SPIE, vol. 2276 (1994), 437-48

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