Introduction

The Cyranose 320 can be best thought of as a chemical vapor comparator. The instrument is first trained to recognize a series of chemical vapors or classes by creating a digital image or “smellprint” of each vapor. When challenged again with an unknown sample, the instrument digitizes and then compares this new smellprint to those stored in its memory. The instrument’s response is based on the summation of the chemical and physical properties of the entire sample, and is not intended to provide information concerning the composition of complex mixtures. It is designed to be used by decision makers (good-bad, accept-reject) when the chemical vapor associated with a sample correlates strongly with sample quality.
The measurement is based on a change in resistance of each chemical sensor in the 32-sensor NoseChip when exposed to a chemical vapor. This is a differential measurement with the sensor response measured as (Rmax-Ro)/ Ro, with Ro being the resistance during a baseline gas flow and Rmax being the maximum resistance during exposure to the sample vapor.

The intellectual property incorporated in the Cyranose 320 is protected by over 60 patents in the United States and worldwide for the sensor technology, detector products, and applications use of the eNose.
The following pages will describe our technology, products and applications. For more information please download our datasheet or contact us/Directions. We welcome your inquiries about the Cyranose Electronic Nose.