Ultrasonic Air Temperature Sensing for Automatic Climate Control - Sensor Development 2003-01-0740
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.
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. Download Citation
Author(s):
Taeyoung Han, David K. Lambert, Larry M. Oberdier, Dale L. Partin, Michel F. Sultan
Affiliated:
Delphi Research Labs, Delphi Corp.
Pages: 8
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Sensors and Transducers, Second Edition-PT-105, Advances in Automotive Climate Control Technologies-SP-1733, SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems-V112-6
Related Topics:
Sensors and actuators
Comfort
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