The invention relates to a high-temperature
platinum resistor well logging device, which comprises a
thermal insulation barrel, wherein the upper end of the
thermal insulation barrel is covered by a compression nut; the lower end surface of the
thermal insulation barrel is provided with a probe jacket which downwards extends; a temperature
transmitter, a temperature sensor and a probe fixing sheet are arranged in the thermal insulation barrel, wherein the temperature
transmitter, the temperature sensor and the probe fixing sheet are successively connected; a probe and the probe fixing sheet are fixedly connected; the probe extends into the probe jacket. The temperature
transmitter is connected with a
coaxial cable; the
coaxial cable extends out from the compression nut; a cone guide head is screwed on the lower part of the thermal insulation barrel. The high-temperature
platinum resistor well logging device has a wide
temperature measurement range and can normally work at the temperature of 50DEC below zero-660DEG C. The
measurement precision is high, the
temperature measurement precision is less than or equal to 0.5%, and a measurement resolution is + / -0.5DEG C. The temperature sensor adopts a
metal hard sealing structure, and therefore, risks brought by damage, such as the
softening and the
cracking of a rubber sealing ring, due to high temperature can be avoided. The thermal insulation barrel sheathes the temperature transmitter, and the temperature transmitter is guaranteed to carry out modulation and normal conversion on a temperature
signal at a high temperature. Uninterrupted on-line measurement is adopted, and the temperature
signal is subjected to functions, such as counting, collection, storage, analysis, printing and the like.