Analog Electronics with LabVIEW®

A.5. Sending and Receiving Waveforms

Measuring circuit response to waveform input signals requires simultaneous sending and receiving data with the DAQ. An example was demonstrated above with the oscilloscope measurement project (Fig. A.14). The function generator VI used for that measurement is FG_A.vi. The main subVI of the function generator VI is SR_A.vi. The Front Panel and Diagram of the VI are shown in Fig. A.19. The VI sends and receives voltage arrays from one output channel and one input channel.

Figure A.19. The Front Panel and Diagram of SR_A.vi. LabVIEW AO Write receives the array of the numerical values of the waveform and sends them out on the output channel. The oscilloscope is launched in sequence and measures the response ...