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Exercise I: Calculate DS in [nm/V] questions: philipp.oertle@unibas.ch DS =
![Exercise I: Calculate DS in [nm/V] questions: DS =](http://images.slideplayer.com./25/7649710/slides/slide_1.jpg "Exercise I: Calculate DS in [nm/V] questions: DS =")
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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] Hint: use Hooke’s Law together with the Deflection Sensitivity
![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] Hint: use Hooke’s Law together with the Deflection Sensitivity](http://images.slideplayer.com./25/7649710/slides/slide_2.jpg "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] Hint: use Hooke’s Law together with the Deflection Sensitivity")
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Exercise III: Transform Piezo Extension to Tip-Sample-Distance Tip-Sample-Distance [um] = Piezo-Extension [um] – Deflection [V] * DS [nm/V] Calculate the TSD at the Piezo extensions: - 3.9 um: - 4 um: - 4.1 um: - 4.8 um:
![Exercise III: Transform Piezo Extension to Tip-Sample-Distance Tip-Sample-Distance [um] = Piezo-Extension [um] – Deflection [V] * DS [nm/V] Calculate the TSD at the Piezo extensions: um: - 4 um: um: um:](http://images.slideplayer.com./25/7649710/slides/slide_3.jpg "Exercise III: Transform Piezo Extension to Tip-Sample-Distance Tip-Sample-Distance [um] = Piezo-Extension [um] – Deflection [V] * DS [nm/V] Calculate the TSD at the Piezo extensions: um: - 4 um: um: um:")
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Exercise IV: Calculate the Young’s modulus Determine the indentation h [m]: Find the stiffness S [N/m] (fit the upper 50 %, use k and DS from above) : Calculate the E-modulus (E r ): Assume that the halfangle Θ is 35° and the poisson ratio ν = 0.5 Stiffness
![Exercise IV: Calculate the Young’s modulus Determine the indentation h [m]: Find the stiffness S [N/m] (fit the upper 50 %, use k and DS from above) : Calculate the E-modulus (E r ): Assume that the halfangle Θ is 35° and the poisson ratio ν = 0.5 Stiffness](http://images.slideplayer.com./25/7649710/slides/slide_4.jpg "Exercise IV: Calculate the Young’s modulus Determine the indentation h [m]: Find the stiffness S [N/m] (fit the upper 50 %, use k and DS from above) : Calculate the E-modulus (E r ): Assume that the halfangle Θ is 35° and the poisson ratio ν = 0.5 Stiffness")
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