The invention belongs to the technical field of dynamic
temperature testing, and particularly relates to a dynamic total temperature probe based on double film
platinum resistors, which comprises a probe head, a probe support rod, two film
platinum resistors and two lead holes. The head of the probe is in a semi-spherical shape and directly faces a main
stream to form a vertical section, the two thin-film
platinum resistors are arranged on the section along the axis of the probe, leads of the thin-film platinum resistors are led out through lead holes located behind the thin-film platinum resistors, a four-wire
system connection mode is adopted, and a cylindrical surface of a supporting rod of the probe and the vertical section are in a Vitdosski
curve shape. The calibration and measurement
data processing method provided by the invention greatly improves the
measurement frequency response and the
measurement precision of the probe, is suitable for measuring the
transient temperature fields of the inlet, the outlet and the interstage of the
turbomachinery, can quickly and accurately measure the
transient temperature change of the
turbomachinery under different working conditions, and provides a technical means for the
transient temperature measurement of the
turbomachinery.