Abstract
The temperature of the water flow in a pipe is measured by a newly designed external thermometer with a Schmidt belt.
The thermometer is composed of the Schmidt belt of silicone rubber sheet placed in contact with the pipe surface, the thermocouples for measurement of the temperature τ°C of the contacting surface and the temperature θ°C of the external surface of the Schmidt belt, and of a heating plate.
The temperature range of our experiments is from the normal room temperature to about 100°C.
The result of the experiment shows that the temperature of the water flow in the pipe obtained by this newly developed thermometer agrees fairly well with those directly obtained by the thermoelectric thermometer immersed in the water flow for reference.
