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ilovescience85
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Homework Statement
The input range of a particular sensor is from 0-6 units and it's output is modeled by the equation O = ƒ(I) = 1+2I+0.005I^2-0.00833I^3
Ideally the output should be relate to the input by the straight line equation (ISL) if the form O=kI+a
A) give the law if the ideal straight line for the sensor
B) Plot a graph of the non linearity (N)I, against input I
C) from the graph, determine the maximum non linearity of the sensor, expressed as a percentage if output span
D) Attempt to determine the maximum percentage non linearity by mathematics.
Homework Equations
O = kI+a
The Attempt at a Solution
I not sure where to start here to be honest.
A) O = 1+ 2I + 0.0025I so ideal straight line equation is O= 2.0025I + 1?
B) I know once the above equation is right it's a case of inputting the input range into it to get the graph plot points so in put 0 would give output of 1 and so on but this is all based the correctness of the equation in A.
C) depends on A+B
D) depends on A+B
Any guidance on the above would be greatly appreciated.
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