Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 15

OLS Field Name OLS Field Data
Main Title Computer-Controlled Vapor-Dilution Olfactometer.
Author Benignus, Vernon A. ; Prah, James D. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1980
Report Number EPA-600/J-80-037;
Stock Number PB82-251091
Additional Subjects Temperature ; Humidity ; Stimulus(Psychophysiology) ; Reprints ; Olfactometer ; Computer applications
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB82-251091 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 8p
Abstract
A computer-controlled olfactometer with several innovations leading to closer control over the stimulus parameters and minimization of nonolfactory cues is presented. A microcomputer is used to control the stimulus duration and interstimulus interval. Electronic mass flow controllers are employed to maintain close control over the flow in the pure air line and the stimulus-bearing line. Both humidity and temperature are closely regulated. Using a nasal catheter, this stimulus delivery system coupled with velopharyngeal closure and oral breathing permits accurate specification of the quantity of stimulus material actually entering a subject's nares. The design is such that the computer programming, patch panel interface, and threaded tubing allow versatility in the type of olfactometric study that can be conducted. This system is amenable for threshold, electrophysiological, and sensory adaptation studies of olfaction.