[time-nuts] Why .30 cal holes can't be seen at 800 yds...
John Miles
jmiles at pop.net
Wed Nov 3 18:40:20 UTC 2010
> My first chore is to investigate what kind of pulse
> rise-times I get from a selection of inexpensive
> ultrasonic sensors when a supersonic bullet passes
> within a couple of feet from them. I have a Tek
> 2252 scope that I can place downrange to look at the
> sensors with but storing the waveform for examination
> may be a problem (no one seems to have volunteered to
> stand downrange monitoring the scope screen!)
> The Tek 2252 has a Centronix screen-capture printer
> output but it is an Epson FX format and I have no
> idea if any current printers at the local Office Mart
> are compatible with the Epson FX data format. Anyone
> on the TimeNuts list have any thoughts on this?
www.printcapture.com should be able to deal with the Epson format, I
believe. They have a free trial version.
> The 2252 scope also has a GPIB port but I don't know
> if it outputs the printer data. I have a Sparkfun
> GPIB/USB dongle but that may not be of any use if
> there is no printer data on the GPIB port.
It almost certainly will support dumping HPGL or Epson data to GPIB.
-- john, KE5FX
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