The invention discloses an
automatic testing device for dynamic
respiration resistance of a
mask. The testing device comprises a head mold, a
respiration simulator connected with the head mold through a pipeline, a
pressure sensor, a lower computer and an upper computer, wherein the
respiration simulator comprises an inspiration air source
vacuum pump, an expiration air source
compression pump, a reversing device
solenoid valve and a
mass-flow controller; the lower computer is connected with the
solenoid valve, the
pressure sensor and the upper computer, and a direction, a flow speed and
airflow quantity of the respiration simulator can be controlled through receiving a
signal of the upper computer, so that simulated
respiratory frequency and
tidal volume are adjusted; meanwhile, a
voltage signal of the
pressure sensor is received and is transmitted to the upper computer. The
automatic testing device for the dynamic respiration resistance of the
mask, disclosed by the invention, can be used for finishing a test on the dynamic respiration resistance of the
mask; a
correlation curve between dynamic respiration
airflow and respiration resistance, and two respiration resistance property indexes including maximum expiration resistance and maximum inspiration resistance can be measured, so that the
automatic testing device can be applied to a mask detection industry, and rapid measurement of the dynamic respiration resistance of the mask is realized.