• The Transactions of the Korean Institute of Electrical Engineers C
• /
• v.50 no.12
• /
• pp.633-638
• /
• 2001

The paper presents the fabrication and test of a micro scent injector module. A micro scent injector module consists of an injector fabricated by micromachining, a scent cartridge and a controller. If a scent injection signal triggers the controller, it heats the scent liquid in the injector chamber and a scent liquid is vaporized. The increased vapor pressure opens a normally closed boss valve, and the scent vapor is injected through the opened nozzle. The liquid volume injected by the fabricated module is about $1\muell$ for one second at 2 W.