thrilling movie
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Posted by John Larkin on August 7, 2008, 12:36 pm
Please log in for more thread options 7 meg file! ftp://66.117.156.8/T346_demo.MPG John | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by BobW on August 7, 2008, 12:56 pm
Please log in for more thread options That was amazing, John. You should send it here: http://www.festival-cannes.fr/en.html :-| Bob -- == All google group posts are automatically deleted due to spam == | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Jan Panteltje on August 7, 2008, 12:59 pm
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On a sunny day (Thu, 07 Aug 2008 09:36:43 -0700) it happened John Larkin >
>7 meg file! > >ftp://66.117.156.8/T346_demo.MPG > >John Honestly, I have not the slightest clue as to what this represents? Care to tell us ;-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by John Larkin on August 7, 2008, 3:01 pm
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On Thu, 07 Aug 2008 16:59:02 GMT, Jan Panteltje >On a sunny day (Thu, 07 Aug 2008 09:36:43 -0700) it happened John Larkin
> >>
>>7 meg file! >> >>ftp://66.117.156.8/T346_demo.MPG >> >>John >
>Honestly, I have not the slightest clue as to what this represents? >Care to tell us ;-) The first three are just demos of waveform triggering and modulation/arb capability. Here's the box: http://www.highlandtechnology.com/DSS/T346DS.html The green trace simulates a group of variable-reluctance pickups on a shaft inside a jet engine. They put ring-gear looking things at various places on the shaft, with various numbers of teeth. The triplet pulse tells you the 0 degree angular reference and the basic speed. The moving pulses could be from another set of teeth on the other end of the shaft; their phase relationship to the triplet is shaft twist, torque. This waveform is simplified for cosmetics; real ones like the JSF fan shaft system can have a lot more features. For some reason, the mechanical and sensor people seem to like to encode a lot of information in a single electrical signal, and let the engine control computer figure it out. In my demo, the movable pulses are actually being phase modulated by a 0.5 Hz gaussian noise generator, another channel in the little box. Channel 3 is my crude attempt at the company logo, made out of line segments. We want to do an add in an aviation magazine: this box spewing out four waveforms, looking sort of like an airplane taking off. The green trace is a known eye-catcher to a certain group of aircraft engineers. I need three other "iconic" waveforms. Maybe a chirp for the radar guys? Maybe something that looks like an impact event picked up by an accelerometer? We tried a Golden Gate Bridge waveform, but it didn't look very good. John | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Jan Panteltje on August 7, 2008, 3:37 pm
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On a sunny day (Thu, 07 Aug 2008 12:01:58 -0700) it happened John Larkin >On Thu, 07 Aug 2008 16:59:02 GMT, Jan Panteltje
> >>On a sunny day (Thu, 07 Aug 2008 09:36:43 -0700) it happened John Larkin
>> >>>
>>>7 meg file! >>> >>>ftp://66.117.156.8/T346_demo.MPG >>> >>>John >>
>>Honestly, I have not the slightest clue as to what this represents? >>Care to tell us ;-) >
>The first three are just demos of waveform triggering and >modulation/arb capability. Here's the box: > >http://www.highlandtechnology.com/DSS/T346DS.html One detail, the screws on the front and back are not flush with the surface, perhaps nuts, chrome, closed, would look better? _ /___\ | | ========================== eh. maybe not... I have build several things in housings like that. And I hope it has no-slip feet. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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> 7 meg file!
>
> ftp://66.117.156.8/T346_demo.MPG
>
> John
>