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pressure transducer and degree markers (Read 408 times)
matt c
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pressure transducer and degree markers
Jun 29th, 2009 at 1:36pm
 
I,ve seen that the ATS Escope has a built in program to add degree markers for use with in cylinder pressure transducer waveforms.  Does pico offer anything similar?  I'm looking into annowave.  Any other ideas.  thanks
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Earl Davis
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Re: pressure transducer and degree markers
Reply #1 - Jun 29th, 2009 at 3:05pm
 
Matt,

Use ms paint and lay your cursors by changing the time line to degrees. We know that compression stroke to compression stroke on the same cylinder is equal to 720 degrees. So for example if the complete 720 degree cycle was 180 ms than you know 90 ms is equal to 360 degrees and 45 ms is equal to 180 degrees. From there you can figure out and add your own degree markers. I will try and post and example of this later. HTH

Earl
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Jim_Wilson
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Re: pressure transducer and degree markers
Reply #2 - Jun 29th, 2009 at 5:46pm
 
Matt,

Quote:
I'm looking into annowave.


Annowave is excellent for what it is, but a bit of an overkill if all you want to do is put those marks on a waveform.

Download the annowave demo and try it out. It may be that you really like all the main features (annotation).

Annowaves primary function is to bridge the gap between vector based illustration programs (photoshop and Corel paint shop pro) and ms paint in the realm of waveform documentation.

It does a very good job of doing that, but if you're like me and want/need more freedom and power, then a real illustration program is better.

I would guess that annowave would serve the vast majority of techs far better than what I use.

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matt c
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Re: pressure transducer and degree markers
Reply #3 - Jun 30th, 2009 at 1:43pm
 
Thanks for your replies.   One other question,  can the firstlook sensor be used in cylinder?    Can it handle that kind of pressure?
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Matt Carey
 
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Tom Roberts
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Re: pressure transducer and degree markers
Reply #4 - Jun 30th, 2009 at 3:08pm
 

Matt,

The FLS would likely be destroyed by cylinder pressures.  Wouldn't make sense to use it there anyway since it doesn't measure pressure.

There are some good examples of degree markings on compression waves in the Wrangler From Hell movie done with Paint.
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Kevin Claybrook
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Re: pressure transducer and degree markers
Reply #5 - Jul 3rd, 2009 at 12:01pm
 
Tom
Quote:
There are some good examples of degree markings on compression waves in the Wrangler From Hell movie done with Paint.


It looks to me like you were able to use multiple measurment cursors with Pico to mark specific degrees of crank shaft rotation then simply copy the screen image and label the cursor marks in MS Paint.  If so, how did you get more than two mesurement cursors with Pico??  I am thinking that this may be a feature of a newer release, I'm still using 6.2.2.12.

Thanks,

Kevin
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Tom Roberts
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Re: pressure transducer and degree markers
Reply #6 - Jul 3rd, 2009 at 12:47pm
 

Kevin,

Brian did that by overlaying one image on another in Paint.  There are still only two vertical rulers within PicoScope.
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Kevin Claybrook
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Re: pressure transducer and degree markers
Reply #7 - Jul 3rd, 2009 at 10:27pm
 
Tom, 

I understand now and even tried it.  Learned something new today,  thanks.  Smiley
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