System Error Calculator In Pc Based Measurements
Kenneth Kelly, Etienne Joseph Khayat, Fouad Mrad · 2020
While PC instrumentation equipment blocks catalogues are over-documented with technical specifications, it is impractical to document possible integrated system specs due to the infinite choices users have.This Instrumentation System Error Calculator estimates the total measurement error in a multistage industrial data acquisition system.The instrumentation system consists of up to four stages that lead to sense the measurand (temperature, pressure etc.) into a reading in the PC.This model-based calculator assumes independent equipment blocks in the measurement experiment setup and calculates a worst case estimate of the total error that the system would give in a real life setup.It can also be used as a model-based off-line program to help engineers and technicians select just the right equipment with acceptable tolerances for industrial tasks.The calculator prompts the user about the type of measurement and the equipment blocks of interest.Also, it asks about the environmental parameters and the operating range of the experiment.By the end of running, the calculator responds with a graph showing the total system error over the whole-required range of operation.Testing the derived model-based calculator was done in the American University of Beirut.The test was conducted with real physical equipment and the results of the experimental setup were compared to those predicted by the calculator.