Lec 25 | MIT 8.02 Electricity and Magnetism, Spring 2002

Driven LRC Circuits Resonance Metal Detectors (Beach/Airport) View the complete course at: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu
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22 replies
  1. reil0080
    reil0080 says:

    You may have noticed a small error.

    If the input is V =Vo cos(wt) one gets tan(phi) = R/(1/wC-wL)

    If the input is V = Vo sin(wt) one gets tan(phi) = (wL – 1/wC)/R

    … slips of the pen as he’s fond of saying. Anyways if you worked through it this should help you.

    Reply
  2. intermitrj
    intermitrj says:

    Free Energy is real and its here but the coverup is strong, if you are interested in a REAL free energy machine then

    just go to LT-MAGNET-MOTORdotCOM and download the blueprints ,it is probably the ONLY working magnet

    motor out there. Join the free energy revolution!!

    Reply
  7. ripriprippity
    ripriprippity says:

    well, just substitute e^mt= Q, m being a complex or real constant , getting L*m^2*e^mt+ R*m*e^mt +1/C * e^mt = 0, sovlign for the homogeneous form first, getting e^mt( L*m^2+ R*m +1/C) = 0, i.e. L*m^2+ R*m +1/C = 0, put that into the quadratic equation, getting m = (-R + or – sqrt( -R^2 -4L/C) all over 2L which should give a complex value i.e. m = r+iq and you’ll have e^mt = e^(r+iq)t = e^rt*e^(iq)t which by euler’s formula gives e^rt * (cos (qt) + isin(qt))
    giving u the homogenous solution.

    Reply
  12. spleichenstein
    spleichenstein says:

    @ripriprippity when are you guys going to put this to use and figure out stanley meyers patents? Something is missing. I am thinking it is 2 coils stacked. The 1st at infinite impedance with resonant frequency pulses, transferring magnetic energy to the secondary coil while drawing almost zero amps and the voltage jumps to virtual infinity. Your thoughts?

    Reply

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