초록 ▼

An electronic igniter circuit for an electric primer for the detonation of a pyrotechnical charge comprising a controlled semi-conductor element connected to the primer and a source of electrical energy to fire the primer when the semi-conductor element is rendered conductive. A condensor is connect

An electronic igniter circuit for an electric primer for the detonation of a pyrotechnical charge comprising a controlled semi-conductor element connected to the primer and a source of electrical energy to fire the primer when the semi-conductor element is rendered conductive. A condensor is connected in parallel to the source and the primer and a checking circuit for verifying the integrity of the igniter circuit and its elements is connected in parallel between the condensor and the primer. The checking circuit includes a voltage sensor which can be connected as a unit with the primer and connected via a cable to the igniter circuit at a remote location.

대표청구항 ▼

In an electronic igniter adapted to detonate a pyrotechnical charge by the rupture of a tripping wire comprising a direct current source, a first resistor connected to one terminal of said source, a primer, a condensor, said primer and condensor being connected in parallel to said source, and semi-c

In an electronic igniter adapted to detonate a pyrotechnical charge by the rupture of a tripping wire comprising a direct current source, a first resistor connected to one terminal of said source, a primer, a condensor, said primer and condensor being connected in parallel to said source, and semi-conductor control means connected to the tripping wire and to said primer to detonate the latter when the tripping wire is ruptured, an improvement comprising control means for checking the functional integrity of the igniter, said control means including a voltage sensor connected in parallel to said condensor and to said primer, switch means connected in series with the voltage sensor, and an adaptation element connected to said voltage sensor as a unit assembly.