Archive for September, 2009
Time Alignment of Signals
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A picture is worth 1024 words
I discussed the idea of a time-alignment scheme in the article Delays, Delays, Delays. The idea is that signals which have a mechanical delay of some kind (gas transport time, for example) can be time-aligned with signals that have a
Web Deflection Mapping Software
Operators of large industrial engines are able to measure the deflection of a single segment of a crankshaft (known as a web) to determine that web’s stress on the shaft. Unfortunately the operators that contracted us for this program were unable to assess the cumulative
Watch your step
But who’s watching the watchers?
Some development environments have a concept called “watching”, where you choose a variable to watch and you see a continuous display of that variable in some window. This is very useful during debugging, as you can step through your program and
The Next Step in TCP-IP
Several conversations at once
A question came up on the LabVIEW forum the other day about multiple connections, and how hard it was to have two connections transmitting at two different rates. This surprised me a bit, because I have been doing just that for quite
Speed of En Masse Operations
Zip-zap-zowee and swoosh!
Just in case you thought I was kidding in the article on en masse operations, I decided to offer some proof of the speed advantages they can give you.
I used the Timing Template vi to measure the time it takes to multiply an
Keeping your charts up to date
Use your chart to indicate time of day.
LabVIEW charts, out of the box, don’t lend themselves to displaying the actual time of day. By default they give you 1024 history points and a visible scale of 0-100 so what you see is in terms of
Acoustic Modeling Software
A section of 6 full-time technicians was simulating compressor-piping interaction using a huge number of electronic components (capacitors, inductors, etc.) to predict where acoustical resonances could cause structural failures. This labor-intensive technique took a team of two people two weeks to assemble the model, run
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