| 摘要 |
A device for blowing ( 16 ) an air flow ( 12 ) filled with a fragrant substance, particularly a perfume to be tested, includes a dilution system ( 18 ), in which the air flow ( 12 ) circulates at a generally constant flow rate, which emerges in a blower nozzle ( 22 ) and into which the substance is injected, a reservoir ( 32 ) in which the substance is stored in liquid form and a system for sampling ( 34 ) a predetermined quantity of the substance, from the reservoir ( 32 ) and continuously, via a sampling gas, which emerges into the dilution system ( 18 ), characterized in that the sampling gas is air which is aspirated from a volume of ambient air. The invention also proposes an installation ( 10 ) having several blower devices ( 16 ) aligned longitudinally.
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