ANALYSIS OF METHODS TO MEASURE SOME BALLISTIC PARAMETERS AT FIRING WITH 155 MM BALLISTIC STAND

The paper describes the question of measurements of selected ballistic parameters of 155 mm cartridges such as the pressure of powder gases inside the barrel bore and muzzle velocity of fired projectiles. The independent methods for measurement of powder gases pressure were applied at firing with 155 mm ballistic stand. Results obtained with particular methods can be used for discussion of significantly wider spectrum of internal ballistics parameters which are useful at research-development work and acceptance tests of standard life cycle for ordnance equipment and ammunition. The paper is focused on comparison of applied measurement methods with the first one using a piezoelectric sensor placed in the gun cartridge chamber nest, and the second one using crushing devices placed inside the chamber behind the propelling charge. The last measurement method combines two above mentioned ones and is based on application of piezoelectric instruments put inside.