Abstract: A measurement cell for an injection machine has a cavity formed between two removable and exchangeable internal metallic blocks equipped with a cooling and heating system. The internal metallic blocks are laterally isolated from bodies that hold the blocks by a space of air that restricts transversal heat transfer in the cavity due to the presence of two polymeric bars installed on its lateral edges edges to generate a one-dimensional heat transfer regime on the central zone of a plate of material to be analyzed. The measurement cell also has a set of fixed pressure and temperature sensors on the bodies connected to a data acquisition system to store signals therefrom and a removable and reusable unit of temperature sensors that possesses ceramic or metallic tubes assembled in a block carrier to guide and fix a group of at least three temperature sensors on the cavity also connected to the same data acquisition system.