Instrumentation quick question - nonlinearity error

[bos1234]

Homework Statement

A non-linear oressure sensor has an input range of 0 to 10 bar and an output range of 0 to 5V. The output voltage at 4 bar is 2.2V. The nonlinearity as a percentage of psan is?

Homework Equations

none

The Attempt at a Solution

Drew a straight line using the data given with equation y=1/2x. (0-10 on x-axis;0-5v on y-axis). Therefore at x=4, y=2. 2.2-2=0.2?

 

[berkeman]

Homework Statement

A non-linear oressure sensor has an input range of 0 to 10 bar and an output range of 0 to 5V. The output voltage at 4 bar is 2.2V. The nonlinearity as a percentage of psan is?

Homework Equations

none

The Attempt at a Solution

Drew a straight line using the data given with equation y=1/2x. (0-10 on x-axis;0-5v on y-axis). Therefore at x=4, y=2. 2.2-2=0.2?

Looks good so far. So what is that as a percentage of full scale?