The utility model discloses a double-control
acoustic impedance testing device, which comprises a main controller, a power supply module, a probe, an acoustic output module, an acoustic feedback
signal acquisition module and an air pressure adjusting module, and is characterized in that the main controller outputs an audio
data signal to the acoustic output module, receives an acoustic feedback
signal output by the acoustic feedback
signal acquisition module, and sends the acoustic feedback signal to the probe; an air pressure adjusting
control signal is sent to the air pressure adjusting module, and an air
pressure feedback signal sent by the air pressure adjusting module is received; the sub-controller receives a detection sound signal sent by the
loudspeaker through the input / output interface, transmits a
microphone driving signal and transmits a sensor driving signal; the air pressure adjusting module converts the air pressure parameter into an air
pressure feedback signal for output; the sound output module controls a
loudspeaker to emit a detection sound signal according to the received audio
data signal; the acoustic feedback
signal acquisition module is used for converting the
echo signal into an acoustic feedback signal; the power supply module provides working
voltage. According to the utility model, the
acoustic impedance can be tested more quickly and accurately.