Hypertaste: An AI-assisted e-tongue for fast and portable fingerprinting of complex liquids.
The human sense of taste is the result of millennia of evolution and astoundingly good at letting us enjoy both pleasant foods and beverages as well as “warning” us against the ingestion of harmful substances. Man-made sensors, on the other hand, have yet to approach the ease with which humans recognize substances. This is a significant gap, as there are many substances out there that we would like to “taste” without actually putting them in our mouth. For the rapid and mobile fingerprinting of beverages and other liquids less fit for ingestion, our team at IBM Research is currently developing Hypertaste, an electronic, AI-assisted tongue that draws inspiration from the way humans taste things.
Hypertaste fills a gap in chemical sensing.
Hypertaste caters to a wide range of industrial and scientific users with a growing need to identify liquids swiftly and reliably without access to high-end laboratories.
Minimalistic hardware thanks to combinatorial sensing.
Since complex liquids contain so many different molecules, it would be inefficient to identify them by sensing each component separately. Hypertaste, therefore, uses combinatorial sensing instead. Combinatorial sensing relies on the ability of individual sensors to respond simultaneously to different chemicals. By building an array of such cross-sensitive sensors one can obtain a holistic signal, or fingerprint, of the liquid in question.
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