| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermometer well capable of performing a precise temperature measurement while increasing the upper limit value of available flow velocity by suppressing the generation of a vibration by a fluid of which temperature is to be measured. SOLUTION: A slender cylindrical sheath insert hole 2 is provided in a conical well body 1, and a cylindrical cap 6 having an outer diameter larger than the root diameter 4 of the root part of the well body 1 is connected to the tip part of the well body 1 by a screw.
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