Transducer and transducer measurement system for the PC
Jont B. Allen · The Journal of the Acoustical Society of America · 1988
The measurement of several acoustic transducers using a measurement system that is implemented on the PC will be shown. This system uses the ARIEL DSP-16 and a PC-6300. The software developed for this purpose, which is called SYSid, was developed first about 8 years ago, and in the past few years was ported to the PC. SYSid will measure the frequency response of a transducer in less than 100 ms with an accuracy that is determined by either the nonlinearities or the noise in the system. Typically, this noise and distortion is more than 80 dB down, giving results that are accurate to 1 part in 104. SYSid also will measure the phase, group delay, impulse response, and the distortion as a function of frequency and level. In the demonstration, an attempt will be made to measure the acoustic impedance of a section of tube, and a rho-c screen.