Also you would adjust the gain and the X and Y sensitivity to get the highest

# Also you would adjust the gain and the x and y

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so that the majority of the screen can be used to view the signals. Also you would adjust the gain and the X and Y sensitivity to get the highest sensitivity for these measurements. In this software-based assignment, Teddy does this for you. 3. Determine the complex impedance plane response for each of the materials listed in Table 1 below, at three different frequencies (10 kHz, 500 kHz, and 2.0 MHz), as the coil is moved from the test-piece to the air point. All samples are flat plates with thickness 8 mm (you can configure a plate with finite thickness from the “2D-Geometry” menu of Teddy). You can assume that the samples are large enough that edge effects can be ignored. For each frequency, capture one image of the impedance plane that shows the signal from all six materials. From the data, note how the probe drive frequency affects the ability to distinguish between samples of different conductivity.

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Table 1: Conductivity of various metals. Metal Conductivity σ (%IACS) Conductivity σ (MS/m) Annealed aluminum 7075- 0 45.9 26.6 Aluminum 7075-T6 33.2 19.3 Cu-Ni 9.27 5.38 Stainless steel SS304 2.51 1.46 Cu 100 58.0 Titanium Ti-6-4 1.08 0.626 Question 2:
• Fall '19
• Inductor, Teddy, 8 mM, Ferrite, Eddy current, 0.1 mm

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