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Capture Peak Strain Gage Fluctuation For Shotgun Chamber Pressure Measurement
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tautech:

--- Quote from: joeqsmith on December 21, 2023, 01:43:39 am ---Say you have a peak chamber pressure of 60k psi.

--- End quote ---
Not for a shotgun.  ;)
pickle9000:
Interesting thread.

So because the weight and volume of the shot is known could you use a few piezo's glued down the outside of the barrel scope that and figure it out mathematically? Am I wrong in thinking that the springiness of the air is a massive issue?
Silver_Is_Money:

--- Quote from: tautech on December 21, 2023, 02:16:01 am ---
--- Quote from: joeqsmith on December 21, 2023, 01:43:39 am ---Say you have a peak chamber pressure of 60k psi.

--- End quote ---
Not for a shotgun.  ;)

--- End quote ---
Shotgun pressures are in the 10,000 PSI range. The SAAMI MAP (maximum average pressure) for a 12 gauge is 11,500 PSI.
Silver_Is_Money:
For now I've settled upon a low noise Tacuna Systems EMBSGB200 Amplifier with the 930 kHz option by which to amplify the rapid voltage spike evolving across the Wheatstone Bridge,  And a Rigol DHO802 Oscilloscope.
TurboTom:
Looks like a decent choice. It may not be relevant for your current application, but nowadays I would always opt for the four-channel version of an oscilloscope if available. The price difference usually isn't that big and if you only once or twice need more than two channels, it's already worth the spending. Moreover, the resale value (and potential) is much better. Just my two cents...  ;)
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