EX5-3/HW5-3 6/6/2019

A load cell is calibrated in an environment at a temp of 21 C and has the following characteristic:

Load (kg) 0, 50, 100, 150, 200
Deflection (mm) 0.0, 1.0, 2.0, 3.0, 4.0

When used in an environment at 35C, its characteristic changes to the followings:

Load (kg) 0, 50, 100, 150, 200
Deflection (mm) 0.2, 1.3, 2.4, 3.5, 4.6

Questions
a) Using Matlab, plot the data and draw the lines (curves)
b) Calculate the total zero drift and sensitivity drift at 35C
c) Hence determine the zero drift and sensitivity drift coefficients (in units of mm/C and (mm/kg)/c