Commonly Used Procedures 6
Agilent Nano Indenter G200 User’s Guide 6-49
Figure 6-70Choose the calibration method
16 Click Calculate.
17 Select Tip Area Results tab.
• Coefficient: Best fit coefficients for A=m
0
d
2
+ m
1
d + m
2
d
0.5
+ ...
• Chi-squared: Square of the difference between fit and the data,
summed over all of the data. This value is minimized by the
fitting process, but it is not very useful for evaluating the quality
of the fit
• Iterations: Number of iterations for convergence
• K(
LF
): Frame stiffness
• E
A
: Modulus used for determination of area function
18 Evaluate area function by verifying weighted difference of contact
area is centered about zero for all displacements. Deviation should
To Next Page
Loading...
