Who needs LabVIEW?

[aplonis]

I have a cyclic endurance test running where a jet engine fuel nozzle is exposed to pressure ramps from zero to full flow. Many thousands of them...several hundred hour's worth. Pressure is controlled, not by servo- or proportional valve because the fuel is heavily contaminated (on purpose) which would ruin those much faster than the unit under test.

So instead I have a stepper motor linked to a 20-turn needle valve dumping bypass flow back to the tank. And the stepper is controlled via Perl and the Device::LabJack module. The program also collects data, triggers a webcam for documentation, and has a rather nice Tk GUI.

UPDATE: Link to Atom Feed on my non-CPAN module is available here:
OO Interface to LabJack Device

[robot_tourist]

Do we get screenshots? Block diagrams of the system?

[aplonis]

Yeah, sure. Over the holiday I am mainly just keeping the system running by keeping the slurry hopper filled with JP-8 and calibrated dirt. But I've got the report to write up, which will have diagrams and such. I'll share a few of those after I've got the report put together.

[Anonymous Monk]

Mom!! I taunted Robot Tourist, and now my foot is bleeding!! Can you bring me Happy Fun Ball?

[robot_tourist]

?

[alpha]

Um could you make some screenshots of that bbq ? :)

[Fengor]

Sounds like a very itneresting piece of candy :) I'm looking forward to screenshots diagrams or code you might wnat to share :)