Agilent Technologies Nano Indenter G200 User Manual page 311

Theory 7
Values of elastic modulus and hardness are affected differently by
changes in frame stiffness. As shown in Figure 7-7, a small change in
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modulus is found by an approximate change of 4e N/m. In Figure 7-8,
the same difference in frame stiffness produced no noticeable change in
hardness.
Figure 7-7 Effect of frame stiffness of modulus
Figure 7-8 No apparent effect of frame stiffness on modulus
Agilent Nano Indenter G200 User's Guide 7-14