>> >>
>>
>>
>>
>>
>> >Hi John
>>
>> >This is brilliant to see that your calculations tie up with what I
>> >measured on the 24V.
>>
>> >How do I measure the inductance? What do you mean about the spike?
>> >Some magnetic force or a current? Is it the opposite of capacitance?
>> >Then I guess the falling magnetic field will cause a current and then
>> >probably in opposite direction...
>>
>> >BTW I'm using this to knock a little ball the same way as a pool que
>> >hits a pool ball. I presume that a solenoid is the best electrical
>> >component to do this?? My 72V plan should be able to give me the force
>> >required but maybe there's some magical component that can give more
>> >bang per volt.
>>
>> >I'm also considering a solenoid with a higher resistance, which to me
>> >means it must have more wounds/windings to more work. (Surely this
>> >logic is correct - If it's the same brand, looks more or less the
>> >same, then, if the wattage is higher, it must work harder and maybe I
>> >can get away with lower voltage and current for the same performance)
>>
>> >Anyway.. How do I measure inductance?
>>
>> ---
>> There are several ways.
>>
>> But first, before we get to the rest of your questions, what kind of
>> test equipment do you have?
>>
>> --
>> JF
>
>I have a digital Volt, Current and resistance meter. (Made by El
>Cheapo). I see they call it a domestic meter:
>formatting link
>This is the only measuring tool I have. :-s