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On my pulse induction detector, mono coil.
I have plotted Target response vs sample delay vs PWM. on 3d plots (see attached).
The ability to rotate and zoom and examine this data has been very useful to me.
3d plotting tools freely available (ImageJ), I have found this tool very useful,
for understanding the repose of different targets, and also for ensuring the damping resistor is a good value.
Conclusions..
The basics are apparent...big conductive targets respond well to longer pulse width at longer sample delays. Whereas very small targets are giving good response at small pulse width and early sample delay, with no improvement at larger pulse widths. There may be a difference in shape between non ferrous and ferrous..not quite sure at this stage
I have plotted Target response vs sample delay vs PWM. on 3d plots (see attached).
The ability to rotate and zoom and examine this data has been very useful to me.
3d plotting tools freely available (ImageJ), I have found this tool very useful,
for understanding the repose of different targets, and also for ensuring the damping resistor is a good value.
Conclusions..
The basics are apparent...big conductive targets respond well to longer pulse width at longer sample delays. Whereas very small targets are giving good response at small pulse width and early sample delay, with no improvement at larger pulse widths. There may be a difference in shape between non ferrous and ferrous..not quite sure at this stage
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