To determine the coefficient the volume of the material is carefully measured as the temperature rises from one known value to another. Write down the known parameters of the problem. Expansion means change or increase in length.
One design is the capacitance dilatometers.
Calculate the temperature difference. Here we can calculate Initial Volume Final Volume Thermal Volumetric Expansion Coefficient Initial Temperature Final Temperature. Linear Thermal Expansion is calculated using the following formula. Where DV is the change in volume a v is the volumetric coefficient of expansion DT is the change in temperature from the initial temperature associated with V 0 the initial volume.