Strain gauge measurement system with Wi-Fi data transfer in LabVIEW

A small strain gage measurement system was developed at the University of Defence in Brno. The system relays on N1 CompactDAQ hardware and LabVIEW software. The system serves as a functional demonstrator for larger systems, which will be designed in the future. The wiring can cause significant problems as the physical dimensions expand and, therefore, it was decided to solve the data transfer wirelessly. Two system architectures are introduced, which are then stress-tested and compared with the reference measurement performed via Ethernet. During the test, both architectures had to handle the same signal generated by arbitrary signal generator. Both of them managed the same task with significant differences. Based on the results of the test a system architecture was chosen. The program was written in LabVIEW and not only it displays data, it also logs them into TDMS file for further processing.