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Double Rifles, Single Shots & Combinations >> Double Rifles

unspellable
.300 member

Reged: 06/03/04
Posts: 187
Loc: Iowa

Re: TPI, CPU, PSI
31/03/05 09:50 AM

In preparing tarage tables a dead weight or constant force is applied to the crusher.

When firing, the pressure is very brief. At the pressures involved the crusher behaves a fluid, but a very viscous fluid, it takes time to deform. Since the peak pressure is so brief, the crusher does not have time to deform to the extent that it does under static prssure.

This is the main reason for the CUP reading being lower than a piezo reading. There are also other errors do to various causes but that is the principle error.

Post Extras

Entire topic
Subject	Posted by	Posted on
TPI, CPU, PSI	AussieMike	22/03/05 05:57 PM
Re: TPI, CPU, PSI	KWK	25/03/05 12:16 AM
Re: TPI, CPU, PSI	unspellable	31/03/05 09:50 AM
Re: TPI, CPU, PSI	KWK	01/04/05 07:09 PM
Re: TPI, CPU, PSI	unspellable	03/04/05 03:22 AM
Re: TPI, CPU, PSI	KWK	03/04/05 11:21 AM
Re: TPI, CPU, PSI	AussieMike	04/04/05 06:15 PM
Re: TPI, CPU, PSI	KWK	05/04/05 12:06 AM
Re: TPI, CPU, PSI	unspellable	05/04/05 03:40 AM
Re: TPI, CPU, PSI	KWK	05/04/05 11:54 AM
Re: TPI, CPU, PSI	unspellable	05/04/05 10:46 PM
Re: TPI, CPU, PSI	KWK	31/03/05 10:44 PM
Re: TPI, CPU, PSI	unspellable	31/03/05 11:28 PM
Re: TPI, CPU, PSI	Tom_Bigbore	22/03/05 10:27 PM

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