National Instruments: Test, Measurement, and Embedded Systems - National Instruments test and measurement national instruments ni nati labview data acquisition pxi gpib teststand measurement automation instrumentation test measurement computer pc networked measurements simulation design software hardware image acquisition vision motion control Mar 17, 2020 · Summary. The PID control algorithm is a robust and simple algorithm that is widely used in the industry. The algorithm has sufficient flexibility to yield excellent results in a wide variety of applications and has been one of the main reasons for the continued use over the years.