1) An instrument for measuring the sense of smell by issuing known concentrations of odorous materials. 2) An instrument using human olfactory senses to measure the odor intensity of a known concentration of an odorous substance.
A device for measuring behaviour as affected by odours or vapours (sense of smell) e.g. a Y tube which passes a stream of air over the test material for comparison with a similar blank stream of air. Measurements may be made of attraction of test organisms or non-attraction.
and instrument for measuring the sense of smell by issuing know concentrations of odorous materials.