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Message ID: 267
Entry time: 06/27/2007 05:01:01 PM
Reply to this: 268
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I set up a model to test the wiretesion property of the tungsten wire.
1) The ration between the scale on the monitor and the real physical scale is roughly 0.8 inch/5 inch=0.16.
2) I change the amplitude of the input voltage and get the corresponding wire vibration amplitude at its resonant frequency. Then I plot the data in X-Y panel. The first one's simulated range is from 0-5 V, it is obvious that the relation between the amplitude of the input voltage and wire's vibration amplitude is not a straight line when former is quite large. So I change the simulated range to 0-1.4 Voltage to get the second picture.
3) Set the input voltage at 3.564 V. Change the frequency and measure the correspoding wire vibration amplitude. Using the Gaussian Curve to simulate these data and he result is shown on the third graph( named AvsF070501). Then change the voltage to 1.463 V and do the process again, the result is shown on the fourth graph (named AvsF070502).
From the two pictures we could see that the mean value, namely the resonant frequency, shifts. |
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