Fine wire thermometer for air temperature measurement
- 30 January 2001
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 72 (2) , 1539-1541
- https://doi.org/10.1063/1.1336819
Abstract
A resistive temperature sensor constructed from 25 μm platinum wire has been optimized for atmospheric measurements of air temperature, operated with a precision resistance-to-voltage converter. The sensor is able to operate in the atmosphere without a radiation shield, and calibration to better than 0.1 K accuracy can be obtained, temporally stable for the typical life of the sensor. The time response is also sufficiently rapid (lag time 40 ms) to allow it to be used for turbulent measurements in the atmospheric surface layer. The electronics system supplies sufficient signal processing for a ±5 V output to directly correspond to ±50 °C.Keywords
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