Method for calibrating a sensor for measuring concentration of odors
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United States of America Patent
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Jan 6, 2004
Grant Date -
N/A
app pub date -
Feb 7, 2002
filing date -
Oct 22, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus is disclosed which employs a pulse-controlled microdroplet fluid delivery system for precisely dispensing fragrances and other odor producing vapors. The pulse-controlled fluid delivery device is capable of ejecting microdroplets of fluid with a diameter less than 350 micrometers at a controlled ejection rate based upon inkjet printing technology. The pulse-controlled fluid delivery system includes mechanisms for vaporizing the fluids and delivery of the vapors to the nose, which is controlled by a programmable system controller capable of real time data-driven dispensing with a multi-fluid capability. Synthesis of custom fragrances is made possible by a multijet programmed control system which adjusts dispensing rates of components. Calibration of a prior art 'electronic nose' is disclosed. A precise calibration gas is produced in real-time to counteract the effect of drifting.
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