Until now, online communication has included only two of our senses, a sense of sight and a sense of hearing. The third, the sense of smell using the nose, will soon be involved. The main application of e-nose is digital smell technology. With digital fragrance technology, it is possible to detect, transmit, and receive scent through the internet.
In order to make the user feel more rational about the effects of movies, a very new interactive scent facility has been implemented in movies or games. The fundamental concept behind this was the perfume that makes the companies sell their perfumes.
Digital smell works by continuously feeding odours from spraying gel pellets to four air streams, one at each corner of the panel. These air streams are blown out parallel to the surface of the screen by fans, and varying the intensity and direction of the air streams disperse the scent to every location on the screen.
iSmell: iSmell is a peripheral computer, the size of a PC speaker that connects to a Laptop via a serial or USB port. It uses consumable cartridges that are used and replaced similar to the way ink jet printers use ink cartridges. The iSmell unit reads a digital fragrance file, produces a palette of 128 chemicals contained in a cartridge, and then moves into the air with a small fan.
Smell Synthesizer: The smell synthesiser is the unit used to produce the smell. Like iSmell, it is a system used to create gas using a machine. There are different types of smell synthesisers available on the market, but for the computer, the smell synthesiser is developed by the digiscents industry.