phys 351 lab 4

# phys 351 lab 4 - A1 Input voltage 5.44V.5 V = 2.72 Charge...

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A1 Input voltage 5.44V .5 V = 2.72 Charge T(1/2)=140x10-6 seconds Expected time constant 1.5E-4 1.54E-04 -4.80E-05 -3.12E+01 Observed time constant 2.02E-4 2.02E-04 3.12E+01 31.2 Discharge T(1/2)=120x10^-6seconds Expected tim constant 1.5E-4 Observed time constant 1.73E-4 A-3 Input Voltage = 5.2 .5V=2.6 T(1/2)=12X10^-6 Expected time constant =12.5x10^-4 1.25E-05 38.4 2091.2 0 Observed time constant = 17.3x10^-4 1.73E-05 Measured Resistance for L= 40.7Ohms Measured Resistance for L= 40.7Ohms Measured L=22.8mH LOW Pass filter B1 C= .0056x10^-6F C=.0048+.001 L=.023mH Input Voltage= 5.2V .5V=2.6 Desired Resonant Frequency, 18kHz ln(Hz) Vout Vin Gain ln(Gain) 50 3.91 0.04 21.4 0 -6.28 100 4.61 0.05 21.4 0 -6.1 Measured Q=.134 200 5.3 0.05 21.4 0 -6.1 Theoretical Q=.687 =sqrt(w1/w2) 250 5.52 0.06 21.4 0 -5.95 300 5.7 0.06 21.4 0 -5.95 400 5.99 0.06 21.4 0 -5.81 550 6.31 0.08 21.4 0 -5.59 820 6.71 0.11 21.4 0.01 -5.25 1500 7.31 0.2 21.4 0.01 -4.67 2200 7.7 0.26 21.4 0.01 -4.41 3000 8.01 0.31 21.4 0.01 -4.23 4000 8.29 0.36

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phys 351 lab 4 - A1 Input voltage 5.44V.5 V = 2.72 Charge...

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