👉 Dilatometry is a technique used to measure changes in pressure or volume over time, often measured as a function of distance from the source. It is particularly useful for analyzing the flow properties of fluids and gases, such as velocity, density, and viscosity. The process involves using a device that can be moved relative to a reference point (the "source") and measuring the changes in pressure or volume over time as it moves through the fluid or gas. This measurement allows for the analysis of how
