Method and device for testing compression ratio of lamina raw material

The invention discloses a method for testing a compression ratio of a lamina raw material. The method comprises the steps of: giving a certain initial velocity to a compression probe; when the compression probe is in contact with a tobacco test sample and a set certain pressure is reached and kept for a period of time is kept, measuring heights of the tobacco raw material before and after compression, and obtaining a ratio of the height of the compressed and reduced raw material to the height of the initial raw material, namely a compression ratio of the lamina raw material. The device comprises a vertical frame, a base type object table, a cantilever type pressure applying head being arranged on the vertical frame and being capable of displacing up and down, a measurement probe connected to the pressure applying head, and a sample groove arranged on the base type object table, wherein the cantilever type pressure applying head is controlled by a computer data processing system through a transmission line. Th