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Exercise I: Calculate DS in [ nm /V] questions : philipp.oertle@unibas.ch

Exercise I: Calculate DS in [ nm /V] questions : philipp.oertle@unibas.ch. DS =. Exercise II: Calculate the Load [ nN ]. Assume that spring constant k = 0.07 N/m Draw the above curve again with the Y- axis in [ nN ].

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Exercise I: Calculate DS in [ nm /V] questions : philipp.oertle@unibas.ch

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  1. Exercise I: Calculate DS in [nm/V]questions: philipp.oertle@unibas.ch DS =

  2. Exercise II: CalculatetheLoad [nN] • Assumethat spring constant k = 0.07 N/m • Draw theabovecurveagainwiththe Y-axis in [nN] Hint: useHooke’s Law togetherwiththeDeflectionSensitivity

  3. Exercise III: Transform Piezo Extension toTip-Sample-Distance • Tip-Sample-Distance [um] = Piezo-Extension [um] – Deflection [V] * DS [nm/V] • Calculatethe TSD atthePiezoextensions: - 3.9 um: - 4 um: - 4.1 um: - 4.8 um:

  4. Exercise IV: CalculatetheYoung’smodulus Stiffness • Determinetheindentation h [m]: • Find thestiffness S [N/m] (fit theupper 50 %, use k and DS fromabove) : Calculatethe E-modulus (Er): AssumethatthehalfangleΘis 35° andthepoissonratioν = 0.5

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