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  • Users: Lakey
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  1. Lakey

    Saturation of a Magnetic Frame

    Is it feasible to determine whether or not a magnetic frame is saturated by the following experiment? Device: A small solenoid, approx 1.5inch by 2.0inch. Method: The solenoid is secured in a non-magnetic fixture. The armature position is fixed half way along its stoke. [full stroke approx...
  2. Lakey

    Amplitude of EMF/BEMF when a coil is de-energised

    Good Morning, I’ve read somewhere that “ theoretically, the peak voltage that is generated when you disconnect a coil form its supply, without suppression of any kind, may be infinite”. If it is theoretical then, I guess, there must be a recognised formula that can be applied. I done the...
  3. Lakey

    Springs - Distempered or Detempered

    Hi Folks, I have a compression spring that has been affect by heat. Is it correct to say that the spring has been "distempered" or is it more correct to say "de-tempered"? I would appreciate your comments. Regards,
  4. Lakey

    Programable Unijunction Tranistor

    Hi, I’m using a PUT [2N6068] to trigger a Thyristor or SCR [C106D1] as follows:- Circuit A: +Veo-+-------------+------------------+ | | | / / | R1 \ R2 \ |...
  5. Lakey

    Reluctance of EN1A Steel.

    Hi Forum, Can anyone provide me (or point me in the right direction) with a ball park figure for the Reluctance of ENIA steel? I have contacted and questioned our materials supplier, unfortunately they don’t have the information I require, but they have supplied me with a magnetic properties...
  6. Lakey

    Diff between RMS & True RMS

    Hi, What is the difference between RMS & True RMS? Is it simply the sample rate? Thanks & best regards,
  7. Lakey

    Heating Effect - DC vs AC

    Hi, Although it is known that the heating effect of DC is equal to AC at the same RMS, can anyone point me to any publications or references that substantiate this? Thanks in advance.

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