A simple, portable, computer-controlled odour generator

In this paper, we report on the on-going development of a simple computer controlled odour generator. The unit comprises of eight “aroma dispensers” that can be loaded with liquid samples (in our case fragrances such as tea-tree oil). These aroma dispensers use a combination of the capillary effect and thermal heating to release aroma to the user. The instrument also includes a controlled fan and a gas sensor to monitor the release of the aroma. Interaction with the aroma generator is through a custom interface that releases aromas in line with either direct control or a preprogrammed sequence. We believe this unit can be used in combination with virtual environments to enhance such experiences.