Microelectromechanical Gas Sensor Based on Knudsen Thermal Force
- Summary
- Researchers at Purdue University have developed a novel, microelectromechanical gas sensor to measure both the heat transfer rate and displacement of a known ambient gas mixture. This device is based on Knudsen thermal force and uses technology that creates a thermal gradient between the heater and surrounding gas and structure. This technology is particularly valuable as it is compact, all electric, and comparatively superior to vacuum gauges in low pressure environments, making it attractive for pharmaceutical lyophilization and high-altitude UAV/spacecraft, among other applications.
- Technology Benefits
- Extracts both gas pressure and relative species concentration for a gas mixture Lightweight and compact All electric
- Technology Application
- Pharmaceutical lyophilization High-altitude UAV/spacecraft
- Detailed Technology Description
- Alina AlexeenkoAlexeenko Research TeamPurdue Aeronautics and Astronautics
- Countries
- United States
- Application No.
- None
- *Abstract
-
- *Background
- Temperature moderating applications, particularly in lyophilization (freeze-drying) applications, are inefficient. Current vacuum gauges used to measure gas levels are bulky, require significant power, and cannot measure composition directly.
- *IP Issue Date
- None
- *IP Type
- Provisional
- *Stage of Development
- Process validation in lab
- *Web Links
- Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipAlina AlexeenkoAlexeenko Research TeamPurdue Aeronautics and Astronautics
- Country/Region
- USA
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