Author Topic: BP vs Smokless  (Read 13078 times)

Offline greenjoytj

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Re: BP vs Smokless
« Reply #25 on: October 07, 2019, 07:56:20 pm »
Before Piezoelectric pressure sensors existed the lead (LUP) & copper (CUP) unit of pressure was the tool in use.  The metal slugs used in these pressure testers were calibrated to a known PSI in a look up table.  To use CUP or PSI interchangeably would be natural.

Now that the electronic measurement system is the standard it smart to apply the CUP & LUP label to the measurement as it describes how the measurement was taken.

With the new electronic system capable of showing pressure over time with a vastly faster response time again it natural to add the PSI unit to the measurement to describe the system used.
For the fist time it?s given the engineers a more factual glimpse of what is happening when the cartridge fires.


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