Application of a new digital thermometer in the field of precision temperature controller for spectral radiance standard detector

The high accuracy radiometric calibration method and technology is one of the primary technologies of modern remote sensing. Spectral radiance standard detector is a key unit of the new high-accuracy radiometric calibration technology, and has potential applications in radiometric calibration of field, air-borne and space-borne sensors. The temperature change of spectral radiance standard detector is a primary factor of affecting its precision and stability. In order to keep the high accuracy of standard detector, a high-accuracy temperature-controlling device is needed to develop. We introduced a new digital thermometer DS18B20 in detail and designed a high-accuracy temperature controlling devices based on DS18B20. The experiment results prove that the temperature-controlling devices we designed can effectively decrease the temperature coefficient of spectral radiance standard detector and is reliable.