measuring base pressure using copper crushers

Force, pressure and strain measurements for traditional heavy ...

the measurement of the deformation of copper element due to the pressure resultant ... function of the shape of pressure curve p(t), the type of used crusher gauge and dyna- ... weaknesses and prevent the service use of pressure test weapons. ... components of mortar are: Base plate, special breech piece for socket force...

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Metallic Cartridge Chamber Pressure Measurement - Chuck Hawks

The proper name for this type of measurement is CUP, or Copper Units of ... Another, similar, method uses lead crusher pellets and the resulting pressure values...

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Internal Ballistics - FR. FROG''S Home Page

Barrel Length - In interior ballistic work this differs from the "barrel length" use ... It is measured from the face of the muzzle to the base of the seated bullet or base of the case neck. ... table supplied with each lot of crushers to determine the peak pressure. ... Typical Dual Measurement (Copper & Piezo-Electric) Pressure Gun.

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CUP vs. PSI — What''s The Difference in Pressure Measurements ...

Oct 13, 2014 ... SAAMI CUP PSI Cartridge Copper Units Pressure PSI ... The CUP system uses a copper crush cylinder which is compressed by a ... The first, going by SAAMI diagrams, is that the position of the crusher gauge port varies with cartridge. ... Without measuring each cartridge at the base, you''ll never read the...

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Cartridge Pressure Standards

In the U.S., voluntary pressure standards for rifle cartridges are set by SAAMI, a member of ANSI. ... Use the copper crusher numbers with the Powley Computer. .... In this article, he shows that CUP and piezo pressure measurements are well .... Under the British base crusher standards described below, proof loads ran 30 to...

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Copper units of pressure - Wikipedia

Copper units of pressure or CUP, and the related lead units of pressure or LUP, are terms ... A chamber pressure measured with a copper crusher gauge would be expressed as psi (CUP) in the English system or MPa (CUP) in the metric...

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Ballistic Pressure Sensors Reference Guide - PCB Piezotronics

PRIMER POCKET: The cavity in the base of the cartridge case made to receive and ... TYPES OF BALLISTIC PRESSURE MEASUREMENTS ... The gas check, piston, and copper crusher are installed and retained with the thumb screw. When.

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Testing Firearms: Measuring Chamber Pressures - Firearms History ...

Jan 9, 2011 ... It uses crusher gauges to determine pressures. ... The amount of deformation of the copper or lead cylinders is measured very precisely and ... For cylindrical cartridges, the transducer is located behind the base of the seated...

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Engineering Design Handbook. Ballistic Series. Interior Ballistics of ...

with standard and experimental methods of measurements. Finally, ignition, flash ..... 4-11 Cross Section of Internal Copper Crusher Pressure Gage. Using...

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Experimental techniques for ballistic pressure measurements and ...

supplier with each lot of crushers to estimate the peak pressure. .... The piezoelectric transducers and the copper crusher gauge can be installed in the same.

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