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PI Project is updated

A

Anonymous

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The Geotech PI project has updated schematics, including a simplified "Option 1" schematic.
PC boards are also available, click the link for details.
- Carl
 
Carl,
Since the article that goes with the PI Project isn't complete just yet I'd like to ask what the shortest Pulse Delay will be on this project. I am thinking of building it as a Winter Project <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)">
Thanks
Beachcomber
 
Current timing is:
Frequency: 900-2300 Hz
Coil pulse width: 15-80us
Sample delay: 4-70us (from the end of the TX pulse)
Sample pulse width: 15-80us
Sec. sample delay: 80-380us (from the leading edge of the sample pulse)
Any of these spreads can be skewed, and probably will be by the time I'm done fine-tuning.
- Carl
 
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