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Scientist Smith YT
Scientist Smith YT
02:44
@JRE It's supposed to be a half wave multiplier. And output have wave DC and half wave AC.
@ThePhoton I tried to combine the circuit of a cockcroft-walton generator and at the beginning a voltage doubler circuit.
@JRE & @ThePhoton I want it to be half wave AC and half wave DC
 
3 hours later…
JRE
JRE
06:03
A Cockcroft-Walton generator is a voltage multiplier.
The multiplication in all voltage multipliers applies to the DC output.
The second simulation I posted is a half wave Cockcroft-Walton multiplier with three stages.
 
12 hours later…
Mike Waters
Mike Waters
18:37
1
Q: Can I measure position with antenna/receiver?

RayZI hope this question is not out of bounds. I'm a EE with little RF and you guys seem to know a LOT about RF... I have a small vehicle traveling in a straight line at low speed. I need to know when it crosses a line that is perpendicular to it's travel. I can't use the normal proximity or through...

antenna-theory rssi
There is a discussion there about proximity and Hall-effect sensors, among other things. I thought that you guys could help out there.
The Photon
The Photon
@MikeWaters Requirements too unclear. S/he can't use "normal proximity sensor" but can embed an antenna in the pavement? Doesn't make sense.
Also, GPS won't work because s/he wants centimeter accuracy, so the alternative is RSSI? Again, doesn't make sense.
Mike Waters
Mike Waters
18:52
@ThePhoton Agreed. ;-) However, one of the comment questions is whether or not a Hall effect sensor can detect magnets in the ground from two feet away. Is that possible?
The Photon
The Photon
@MikeWaters With a big enough magnet, but I doubt if it will be localized to centimeters.
Mike Waters
Mike Waters
Ah yes. Thanks.
The Photon
The Photon
Better just to paint a stripe of paint on the ground and use a camera or reflective sensor on the vehicle to detect it.
Mike Waters
Mike Waters
@ThePhoton Perfect! I'm going to put this in a comment there.
The Photon
The Photon
@MikeWaters Don't worry, an OP like that will have some reason it doesn't work for them.
Better to just close the question with extreme prejudice.

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