METHOD TO DETERMINE CHARACTERISTICS OF ACTUATION OF PYROTECHNICAL ITEMS WITH ELECTRIC INITIATION AND DEVICE FOR ITS REALISATION Russian patent published in 2013 - IPC F42B35/00 G01P3/64 

FIELD: testing equipment.

SUBSTANCE: electric current from a DC source is supplied to an incandescence element of a pyrotechnical item, the current supply moment t₁ and the current value I are fixed. The moment is fixed for ignition of the pyrotechnical item charge t₂ by the moment of current surge on the element of incandescence of the pyrotechnical item, and the time is detected for initiation of the pyrotechnical item T, as the difference between the moment of ignition of the pyrotechnical item charge t₂ and the moment of DC supply t₁. The device for determination of pyrotechnical item actuation characteristics consists of a breaking circuit with a source of power supply connected to an element of incandescence of a pyrotechnical item. The device includes a unit of initiation time determination. The break circuit comprises the serially connected components: a power supply source, a key for circuit closing, an element of incandescence of a pyrotechnical item, a device for measurement of current force in the breaking circuit. The output of the current force measurement device is electrically connected to the input of the initiation time determination unit. The power supply source is made in the form of a DC voltage source.

EFFECT: improved reliability of tests.

3 cl, 1 dwg