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I need to submit a lab report. I've measured:

  • Differential pressure [Volts]
  • Flow rate [Hz]
  • Flow Rate [m^3/s]

In my report I need to get the Pressure Differential in Pascal but how can I convert Volts to Pascal?(?!?!?!?!?!)

How do the measuring devices can measure pressure in volts and flow rate in Hz in the first place?

Thank you!

Image for demonstration: enter image description here

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  • $\begingroup$ Calibrate the sensors against known values of pressure - the lab has a barometer etc $\endgroup$
    – Solar Mike
    Commented Aug 19, 2022 at 20:20

1 Answer 1

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The device will contain a pressure transducer.

transducer
noun

a device that converts variations in a physical quantity, such as pressure or brightness, into an electrical signal, or vice versa.

In your case it is converting pressure into a voltage.

... but how can I convert Volts to Pascal?

You read the manual for the device and find the conversion factor which will be in volts/pascal or pascal/volt. (Note lowercase for SI units named after a person. The symbols are capitalised.)

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