An economical measurement microphone was encapsulated using a consumptive microphone in this paper

and a calibration rig was designed and validated firstly

and then the amplitude and phase of the microphone was calibrated on this rig.The calibrated microphone was used as measurement microphone on the flow impedance test rig(FITR) in our laboratory

and the measured data were compared with data measured by Bruel & Kjaer(B & K) 4938 microphone.The comparison result shows that the microphone can be used as a measurement microphone when it is calibrated.