Marking the thermometer

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Characteristics of a thermometer - type of scaling. This allows the thermometer to read the actual temperature.

Thermometers are devices in which the dependence of a material's properties (eg density, resistance, potential difference, or thermometric parameter) on temperature is used. Marking involves the change of this property to the temperature. Calibration procedure

Temperatures occur at constant temperature. Substances with known melting or boiling points are used.

Usually it is ice melting at normal pressure (0 ° C) and boiling water at normal pressure (100 ° C). If the thermometric body changes its properties linearly with temperature, these two points are enough to keep the thermometer cool. It is enough to divide it into a hundred parts by assigning these two points on a scale. This thermometer allows you to measure temperatures to within 1 ° C. This scale can be extrapolated to lower and higher temperatures.

In more precise thermometers, the gauging points should be more and the temperature should be interpolated through the calculation or calculation element that is part of the thermometer.

You can also use a standard thermometer for hallmarking.

wiki

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