Patent ID: 6386028
Filing Date: 2002-05-14
Classification: F41A,G01L

Abstract:
Apparatus suitable for use in measuring the peak chamber pressure of a given firearm upon discharge of said firearm using a given ammunition, which apparatus comprises:a piezoelectric accelerometer for generating a recoil acceleration electrical output signal from recoil acceleration of the firearm upon discharge thereof, said accelerometer being provided with releasable mounting means formed and arranged for rigidly securing said accelerometer to said firearm in proximity to the chamber of the firearm, said accelerometer having signal output means; a signal processing means; first signal transmission means for transmitting said electrical output signal from said accelerometer signal output means to said signal processing means; said signal processing means being formed and arranged to convert said recoil acceleration electrical output signal from the accelerometer to a second signal output which is representative of the peak chamber pressure, using a conversion relationship based on the mass of each of the firearm, and the projectile and the propellant components of the ammunition, and the firearm bore diameter, said signal processing means having signal output means for connection, in use of the device, to output signal display means.