Mark
I have a 12 inch diameter 500 psi test gage. I calibrated it against a
pressure transducer calibration system we used when I worked at AFRL at
Wright-Patterson AFB. The test gauge was within a 1/2 psi of the indicated
pressure . That was surprising. The gauge is 1970s vintage, it was calibrated
in 2013.
The test rig is a pressure bottle of nitrogen, a pressure regulator with a
needle valve. They are connected up to a cross with an on/off vent valve, a
place for the transducer and a connection to the test gauge. I use a
voltmeter to measure voltage and read the gauge directly. When I cal a
pressure transducer for my test stand, I run the voltage through my DAQ set up.
The DAQ setup is a NI USB 6002 and a computer with LabView.
I do the same thing with load cells. My force measurements don’t go over 500
lbf so I stack up roughly 300 lb of steel. I’m willing to accept the error at
500 lbf.
Hope this helps,
Rick Wills
Huber Heights, Ohio
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf Of
mark.spiegl@xxxxxxxxx
Sent: Thursday, 2 March, 2023 12:15 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Subject: Re: S-26.500 KNSB Sugar Shot test tomorrow
Isn't it easier using an Arduino laying around (also cheaper) instead of the
DataQ module?