Ultrasonic Air Temperature Sensing for Automatic Climate Control - Sensor Development

2003-01-0740

03/03/2003

Event
SAE 2003 World Congress & Exhibition
Authors Abstract
Content
Automatic climate control could be improved by measuring air temperature ultrasonically. Thermal comfort correlates better with bulk air temperature than with the temperature measured by the in-car sensor. The time of flight of an ultrasonic pulse through the air gives the bulk air temperature. In a proof-of-concept experiment, it is accurate to ± 0.5 °C from -40 to+60 °C. Two operational modes are demonstrated: pulse-echo in which a single transducer creates a pulse and detects its return from a reflector, and single-pass in which a source transducer creates a pulse that travels directly to a separate transducer.
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DOI
https://doi.org/10.4271/2003-01-0740
Pages
8
Citation
Han, T., Lambert, D., Oberdier, L., Partin, D. et al., "Ultrasonic Air Temperature Sensing for Automatic Climate Control - Sensor Development," SAE Technical Paper 2003-01-0740, 2003, https://doi.org/10.4271/2003-01-0740.
Additional Details
Publisher
Published
Mar 3, 2003
Product Code
2003-01-0740
Content Type
Technical Paper
Language
English