Background Timeline • Circa 1860, use of copper crusher gages began (static calibration used) • Circa 1920, use of electronic chamber pressure transducers began • Circa 1960, dynamic calibration of crusher gages began (25% improvement) • 1990 NATO crusher trials imply 1% difference between US (Tourmaline) and French (Quartz) measurements (Everyone celebrates excellent
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chamber pressure was the copper crusher method. Up until that time, what we now call CUP was commonly known by two different names: CUP and PSI. The two were used practically interchangeably. Of course, this use of PSI was incorrect. It wasn't much of a problem until piezoelectric and strain gauge systems became commonly available. These
CRUSHER MEASURING SYSTEMS. For more than 70 years we, the WILHELM HANDKE , produce a lot of various types and standards of crusher gauges and copper-crushers for internal ballistic pressure measurement, by order of a great many military and civilian authorities and we are known all over the world.
Crusher gauge synonyms, Crusher gauge pronunciation, Crusher gauge translation, English dictionary definition of Crusher gauge. an instrument for measuring the explosive force of gunpowder, etc., by its effect in compressing a piece of metal. ... Pressure measured by copper crusher gauge is always less than the true pressure due to the ...
Mar 18, 2019· In the field of interior ballistics, crusher gauges are still widely used for the gas peak pressure measurement within a fired ammunition. Under the effect of the gas chamber pressure, a copper...
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Jan 01, 1993· This specification covers copper crusher spheres for use in crusher gauges, primarily intended for use in measuring pressures in weapons. This document is referenced by: STANAG 4423 - CANNON AMMUNITION (12.7 TO 40 MM) - SAFETY AND SUITABILITY FOR SERVICE EVALUAllON. Published by NATO on October 20, 2011.
To this day, most published chamber pressure (MAP) data for metallic cartridges is taken by the copper crusher method of measurement. The proper name for this type of measurement is CUP, or Copper Units of Pressure. Another, similar, method uses lead crusher pellets and the resulting pressure values are called "Lead Units of Pressure," or LUP.
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Copper crusher gauges are the traditional means to routinely determine peak pressures in large caliber weapons. Most attractive in this method is its simplicity in use. Questionable is the precision in reading the pressure in view of the cumbersome gauge calibration practice which is prone to errors, especially in the low temperature regime.
poundsbeexpected,acylinderhavinganinitialcompressionof 28,000poundsshouldbeused.Somemarginbetweentheinitial compressionandprobablepressureoughttobeallowed,however ...
Copper Crushers Crusher. Crusher type pressure gauges are used to determine the maximum pressure in the barrel, or in a ballistic bomb, during a ballistic test. List of types offered: cylinder crushers, Conical crushers Pressure Gauge.
The M-11 Copper Crusher Gage is a device which measures peak pressure developed in the chamber of large caliber weapons. This gage is one of two models used by the U.S. Army in testing gun systems and is used for high pressure measurements between 150 and 550 MPa. In the Third NATO Crusher Gage Comparison Trials held at Meppen,
CRUSHER GAUGE FUNCTION Crusher gauges are designed to determine propellant gases maximum pressure, during a shot in a gun combustion chamber, as well as in a pressure gauge bomb. The sensor is copper crushers of different configurations such as piston, conical, spherical.
A copper crusher gauge holder for testing internal pressures of cartridges during test firing is provided. The copper crusher gauge holder has a circular aluminum upper plate and a circular aluminum lower plate having a layer of urethane rubber approximately ¾ inch thick sandwiched between the plates. The gauge holder is bored to hold copper crusher gauges and center-bored to fit over a ...
Copper units of pressure or CUP, and the related lead units of pressure or LUP, are terms applied to pressure measurements used in the field of internal ballistics for the estimation of chamber pressures in firearms.These terms were adopted by convention to indicate that the pressure values were measured by copper crusher and lead crusher gauges respectively.
The HPI B280 Barrel Gauge System has been specifically designed for dimensional measurements in both rifled and smooth barrels, covering diameter ranges from 5.36 mm to 203 mm. Measuring travels between 0.4 mm and 5 mm are available for testing newly manufactured barrels or determining the extent of barrel wear. Full product Details ».
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Dec 26, 2018· Piezo (PSI) and strain gauge (PSI) are not directly relatable to copper crusher (CUP) due to the differences in the sensitivity of the copper crusher versus the other methods used to measure the pressure. However, new statistical data analysis suggests that for most cartridges ANSI/SAAMI Maximum Average Piezo (PSI) and Maximum Average copper crusher (CUP) taken in a "standard" …
CR-Series Copper Crusher & Gages. The Crusher measuring system is a proved method for the determination of inner-ballistic maximum pressure in combustion chambers. With the help of a device resp. the Crusher measuring apparatus, a copper body is loaded. The plastic deformation which results from the load is the measure for the pressure.
development of pressure in the barrel and velocity of shot at the muzzle are measured using electronic instrumentation. Copper crusher gauges or piezo-. Chat Online proof - BASC. two sets of values have been arrived at using the same pressure measuring system. ... As the CIP minimum Copper Crusher Proof Pressure is 850 bar and High... Chat Online
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Apr 18, 2015· 2) Replacement of copper crusher gauge (CUP) test equipment for piezoelectric based systems may be prohibitively expensive. CUP-based setups tent to be mechanical only, so do not require any form of computer or electrical supply. Even the measurement of the crushed gauges can be done with a mechanical micrometer.
Copper Crushers Gas Checks Pistons & Pistol Holes Headspace Gauges Reference Ammunition Miscellaneous Standard Velocity & Pressure Test Barrels — General Velocity and Pressure test Barrels by Caliber. Section 4 –Definitive Proof Loads. Purpose and …
In the field of interior ballistics, crusher gauges are still widely used for the gas peak pressure measurement within a fired ammunition. Under the effect of the gas chamber pressure, a copper ...
Sep 15, 1997· Copper crusher gauge holder 10 is located against the internal base of the cartridge case 11 and inserted over the center primer tube, in this embodiment a MK-45 primer with a MK-9 cartridge. The major components of the copper crusher gauge holder 10 may be seen by reference to FIG. 2, an enlarged view of the base of cartridge case 11.