A biomass impact sensor (20) for sensing impacts of biomass material may include a pressure sensitive film (24) having a first sensing face (26) and a second opposite face (27), a first layer (28) of a first material composition directly abutting the first sensing face having a first stiffness, and a second layer (32) of a second material composition directly abutting the second opposite face. The first layer and the second layer may be joined along opposite edges of the pressure sensitive film to envelope the sensing material layer on the opposite edges.
