Specifications

Page 42 of 89
4.8.7 The Acoustic Measurements Tab
The Acoustic Measurements tab provides the Adaptive self-diagnostics functions. The
window lists all the transducers with Solo, Sweep select box and Progress status for
each transducer along with Calibrate, Measure and Cancel buttons.
As with any dual FFT measurement system, performing Calibration and diagnostic
Measurements should only be performed in a relatively quiet space. Excessive
ambient noise can cause measurement errors and inconsistencies.
Calibrate
Calibrate allows you to create new reference impedance and response measurements
for use by Adaptive products for diagnostics. This should be used whenever a
transducer has been replaced.
Select which transducer you need to calibrate and click the Calibrate button. Anya will
generate a very short noise burst (about 6ms) and capture impedance and frequency
response measurements with the internal microphone. It will perform the
measurements three times for each transducer and verify the measurements are
consistent. This is to ensure the measurements are valid and have not been
contaminated by excessive external noise. If the measurements are not consistent,
then the measurements will be repeated.
Once a valid measurement has been made, Anya will store the averaged results as the
reference for that transducer. This will be the reference used to compare to diagnostic