KULITE PRESSURE TRANSDUCER PDF

Miniature Pressure Transducer With Integrated Temperature Sensor. This transducer is well suited for both dynamic and static pressure. Advanced Technology for Advanced Performance. A brilliantly progressive.

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Did you apply the tinfoil with the shiny side IN?

Kulite ETM 375 Pressure Transducer

I jest, these kinds of noise issues can be a bear to deal with. Is there any heavy machinery or electric loads fans, motors, etc in the nearby vicinity? Do you presshre access to an oscilloscope? It’s best to probe starting out with a mininmal configuration, working from the load cell back up the chain, with rransducer with any DAQ hardware connected. Most Active Hardware Boards: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

We aim to measure fluctuations roughly an order of magnitude lower than this. RMS fluctuation in the Input and output gains are applied to a total of 60 dB. In accordance with another knowledge base article, I have attempted to run the laptop on battery power, without effect. I do fully understand how many components of my system are not Pressrue products, and that this is a complicated thing to tranzducer, but can you provide any guidance on how to procedurally identify the source of the noise and eliminate it?

I have tried most of the recommendations in the Field Guide to Wiring, but I’m still lost. Message 1 of I have also wired the Kulite input to be in a RSE configuration — same result. Message 2 of Message 3 of Message 4 of Hello Jerrod, I have a couple of suggestions and questions about your setup.

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First, it is transduce obvious that your noise is environmental. If it kukite at all possible try making a similar measurement in a different location.

By doing this you can see if it is just the room you are in that is causing the interference or if it is the equipment you are using that is generating it.

Multifunction DAQ

What kind of lighting do you have in the room where you are making your measurements? Fluorescent lighting is notorious for introducing a lot of 60 Hz noise into measurements. In many case just turning the lights off can reduce the noise in your signal. You could also try wrapping all of your cabling and your USB in aluminum foil. This would add an extra level of shielding to your setup, helping to block environmental electric fields.

Another possibility, depending on the frequency of the signal you wish to measure would be to sample at 60 Hz. This would cause each measurement to read the same amplitude of the 60 Hz noise wave, effectively ignoring it. If processing time isn’t an issue in your application you could also try to use a software bandstop filter with very sharp edges to remove just the 60 Hz noise signal.

Lastly, when connecting your signal differentially, did you connect pulldown resistors from both of your input lines to ground? If not, try performing your measurement with this type of configuration. Let me know if any of this works or if you are still unable to remove this unwanted noise so that we can continue to work towards getting your data acquisition up and running and working.

Message 5 of Dan – Thanks for the reply! Our ultimate goal is a PSD from 5 Hz – 25 kHz, and we’d later like to look at even higher frequencies Message 6 of FYI, aluminum foil didn’t do it, either.

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Message 7 of Message 8 of In addition from working from a minimal configuration and working up the chain you could perform tests on each of your devices individually to narrow down which one is the source of the unwanted noise. This would require designing specific tests for each device that would use only the specific devices, but the effort should pay off in the long run. Message 9 of We can turn off the fluorescent lights in the entire building without effect.

There’s nothing else major running in our small building, but perhaps another building in the immediate area is on our power grid, with interfering items?

I’m going to run the whole setup in a different building today, to pressurr if that rules anything out. We’re in a metal hangar at a small airport — it can’t be the best power source here. As far as independent component testing I can remove the Kemo filters from the setup and look at the unamplified Kulite signal on an oscilloscope.

Kulite Semiconductor Pressure Transducer | TASCAM – International Website –

However, while the output from the Kemo filters is better on a percentage basis, the appearance of 60 Hz and harmonics is more pronounced with the Kemos in place. To isolate the Kemos, I can feed a waveform-generator signal into the Kemo filters in place of the Kulite signal. Since I’m seeing noise even directly out of the Kulite, it’s possible my power supply is not good enough?

Maybe it’s worth a shot? Message 10 of