gary wrote:harry dalek wrote:i was thinking more the lining up of the nipkow hole to some where on either the white or black part of the strobe disk...i am a bit ify on this part if it matters at all white back or start middle end of the small stripes matters where it lines up.
Well to some extent it depends on how you interpret the pulse, but generally you just line up the two missing pulses, or I suppose it's the same thing to say you line up the 31 black segments with the 31 holes...
re video:
heh heh heh, it's one thing to stick your great mitt in front of the sensor in broad daylight - quite another to pick up that tiny twinkling light of the FSS - but you'll soon see
But at least it is responding to light and that's promising.
BTW is one of those sensors still an LDR? (I suppose it must be).
I will have to work that out on the strobe disk thing when i do it i suppose the size of the print out will give you the pulse width size to ...but sounds like need to match them to where the holes are in the disk from our chatting .
Yes the second one is now a LRD i made the first stage amp in that case for it to now,i ran out of room to do any more electronics to amplify that more ,i just want to finish that off for now so i can close the case for good .
I am pretty happy with the light sensor that was pointed at a darker hall way its just picking up the tv from the side with some some pulses seen yes i expect low levels so i will try it in a dark or darkend room it ,gos bonkers when you point it at the tv across the room.,but as you say thats not a dim nipkow scan .
i think its hopeful if thats the only light in the room for a start it may work seems pretty sensitive .
I can see with my lens system closer for farer away focusing this will help with light level as well ....but size wise just depends what i can try and scan ....close gives a small scan area but lighter far larger and dimmer .
I will start doing some scan tests with the disk see if my sensor can pick up any of the nipkow light so perhaps time to do some trials .
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.