Invisible World
of Aroma.


Invisible World of Aroma. Visualized.

Works like your nose - The sensor captures and digitizes scent. That invisible, subjective sense of smell is now visualized.

What if, aroma bit is installed on smartphone, and you could post your favorite restaurant's sizzling food on SNS along with the aroma of it. What if, you have aroma bit sniff perfume, and you could tell its aroma in remote place.

A whole new horizon of possibility opened up - with aroma bit


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.


Two types of sensor transducers, the QCM (Quartz Crystal Microbalance) type and 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 QCM type detects changes in mass caused by the adsorption/desorption of smell molecules on the membrane surface as changes in the resonance frequency of the quartz crystal. The frequency change value for each membrane is measured.
The CMOS type is smaller than the QCM type and has a different detection principle. 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.
(*CMOS type is available from Aroma Bit Inc's subsidiary, Aroma Bit Silicon Sensor Technology, Inc. or ABSST)
Unlike conventional gas sensors, Aroma Bit's smell sensors can detect complex smell, and both 5Q-SSM (QCM) and 5C-SSM (CMOS) can be used repeatedly, for a variety of smell related applications.


Aroma Bit offers a unique, world-leading digital of action solution, comprised of its cutting-edge compact smell imaging sensors and digital smell data solutions.


Smell Imaging Sensor

System development kit designed to add smell sensor feature your products & system
[QCM type/CMOS type]
*For corporate customers only.


QCM (Quartz Crystal Microbalance) type: Changes in mass caused by the adsorption/desorption of smell molecules on the membrane surface are detected as changes in the resonance frequency of the quartz crystal unit. The frequency change value for each membrane is measured and converted into numerical data.


CMOS type*: Using the CMOS sensor's ability to store an electric charge on its surface, the sensor converts the data into numerical values by detecting the increase or decrease in the amount of electric charge that occurs when smell molecules are adsorbed/desorbed on the membrane.

Smell Measurement Devices

*For corporate customers only.

Aroma Coder®V2 Plus Set

Desktop type, high odor resolution analytical device, equipped with a high-performance smell imaging sensors. Equipped with 40 smell receptor membranes, enabling stable and repeatable, and yet high odor resolution measurement of complex smell samples, with simple, user friendly user interface.
The product is intended to be used for quality control, product development, product comparison for food and beverages, agriculture, consumer goods, cosmetics and other industries .
*CE certified product.


Digital Smell Data Solution, using digital Smell Data acquired from Smell Imaging Sensor and Sensor Measurement Devices.
*For corporate customers only.


Subscription type, cloud-base digital smell database development platform, with built-in data analysis functions. It supports analysis of data acquired from Smell Imaging Sensors, enabling customers to build their own unique digital Smell Databases.

Measurement & Analysis Service

Per-sample base measurement and analysis service, where Aroma Bit measures smell samples provided by customers. High odor resolution "Aroma Coder®V2 Plus Set" is employed for the measurement. Several types of data delivery is available.