DEVICE FOR DETERMINING ACTUATION TIME OF INITIATORLESS PRIMER/ DETONATOR (VARIANTS THEREOF) Russian patent published in 2008 - IPC G01P3/64 C06C7/00 F42B35/00 

FIELD: devices for measuring action time of means for initiation.

SUBSTANCE: two proposed variants of a device for determining actuation time of an initiatorless primer/ detonator fitted with an impact wave tube in a transparent envelope used to conduct the pulse from an initiating device. The device according to variant 1 comprises a chronograph, a chronograph start photosensor responding to the radiation of a detonation front which propagates inside the impact wave tube after initiation of the later, a chronograph stop sensor responding to the impact effect upon actuation of the primer/detonator. The device according to variant 2 comprises a photosensor being used as a chronograph stop sensor responding to the radiation upon actuation of the primer/detonator, disposed around the later and placed into a bushing with a not less than 5 mm wide and 3-10 mm long slot cut therein.

EFFECT: invention ensures reliable, safe and precise measurement of the actuation time of initiatorless primers/detonators in a multiple use device.

6 cl, 3 dwg