Invisible World
of Aroma.
Visualized.

Aroma Bit's sensor is a type of sensor called e-Nose, which imitates the mechanism of human and animal noses. It is a multi-array sensor consisting of many sensor elements, each of which is coated with a different "smell adsorption film" developed by our company.
Each of these smell adsorption membranes has different surface adsorption characteristics, enabing the sensor to detect and numerically analyze smell samples, which is a complex mixture of many unspecified chemical gas substances, as a specific response pattern.
It is generally known that the response patterns of similar smells are similar, and thus makes it possible, to create and develop a digital database library of smells to identify and discriminate one smell from the other.

The sensor transducers, the CMOS (Complementary Metal-Oxide-Semiconductor) type, have been commercialized as sensor elements for detecting the information that chemical substances are adsorbed on the sensor surface.
The CMOS type is compact and it detects changes in the amount of electric charge on the surface of the sensor.
By applying the ability of the CMOS sensor itself to store electric charge on its surface, the change in the amount of charge caused by the adsorption/desorption of smell molecules on the membrane is converted as numerical output data.
Unlike conventional gas sensors, Aroma Bit's smell sensors can detect complex smell, and 5C-SSM (CMOS) can be used repeatedly, for a variety of smell related applications.