To correctly plot this data, the SUPER routines required the submission 

 of certain calibration and subsetting parameters. For calibration the voltage 

 corresponding to some known situation (for example, full deflection or 80% 

 full load) and the voltage for a zero reading were needed. These were taken 

 directly from a listing of the ADC data. The required subset information 

 included the sequence numbers of the first and last samples to be plotted. 

 With these available for each test, the SUPER routines produced graphs of 

 load or bearing pressure versus deflection using the on-line plotter associated 

 with the NCEL IBM 1620 System. 



33 



