Universal acquisition system for frequency domain parameters measurement

The universal acquisition system is presented. System is dedicated for multiple frequency domain parameters measurement: transfer, insertion loss, AC response, harmonic distortion, noise and electrical impedance. The primary application was the ultrasonic equipment AC parameters evaluation. Operation range is 20 kHz to 30 MHz. System is targeted for parameters comparison and estimation, but it is universal: all the measurements are accomplished using just one excitation and two analog reception channels. System structure and operation are presented. Modular PC104 form-factor construction allows for both local and remote PC connectivity. Setup for most common tasks and example measurement results with system is presented.