BREATHING SIMULATOR, SYSTEM AND METHOD FOR CALIBRATING A GAS FLOWMETER WITH SUCH A BREATHING SIMULATOR

摘要

This breathing simulator (2) comprises a piston pump (48) and driving means (20) for driving a piston (30) of the piston pump, within a casing (4) of the piston pump, with a reciprocating movement (T1, T2). The driving means include an electric motor (20), a screw-nut connection (26/36) between a shaft (26) rotatively driven by the electric motor and a nut (36) fixedly mounted on the piston, electronic control means (50) piloting the electric motor on the basis of a target value for at least one parameter defining the reciprocating movement of the piston and input means (52) for setting the target value. The calibrating method includes a step of connecting the pump (48) of the simulator (2) to a flowmeter (F), a step of selecting a target value for at least one parameter defining the reciprocating movement (T1, T2) of the piston (30) and a step of transmitting to the electronic control means (50) a data representative of the selected target value.