I have been playing around with the dangerous side of electricity, as safely as I can.
I have been photographing exposed light bulb elements - yes I am very careful, I ensure that the lamp is unplugged when installing and removing bulb with the glass removed.
The attached shot was taken with a photo transistor but feel its missing the initial demise of the filament.
So I thought about using a hall affect to detect when the lamp is switched on. the camera take about 0.045 seconds to take the first shot so hopefully detection pf the AC current in the wire will be fast enough to get the start of things.
I have an allegro 3144 which I tried but does not seem to detect anything in the when current passes through the wire.
I have looked through a few but I cant figure out which would be best.
unless there is a batter way that does not involve cutting open the wire - don't fancy that myself.
Thanks
I have been photographing exposed light bulb elements - yes I am very careful, I ensure that the lamp is unplugged when installing and removing bulb with the glass removed.
The attached shot was taken with a photo transistor but feel its missing the initial demise of the filament.
So I thought about using a hall affect to detect when the lamp is switched on. the camera take about 0.045 seconds to take the first shot so hopefully detection pf the AC current in the wire will be fast enough to get the start of things.
I have an allegro 3144 which I tried but does not seem to detect anything in the when current passes through the wire.
I have looked through a few but I cant figure out which would be best.
unless there is a batter way that does not involve cutting open the wire - don't fancy that myself.
Thanks
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