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公开(公告)号：US5206455A
公开(公告)日：1993-04-27
申请号：US676345
申请日：1991-03-28
申请人： Michael S. Williams , Robert R. Durrell , Simon M. Kokoshvili , Charles J. Moore, Jr. , Jeffrey M. Moser , Theodore J. Netoff
发明人： Michael S. Williams , Robert R. Durrell , Simon M. Kokoshvili , Charles J. Moore, Jr. , Jeffrey M. Moser , Theodore J. Netoff
摘要： The present invention relates to ordnance ignition systems and methods having significantly improved safety and reliability characteristics. In a preferred embodiment, laser energy is used to fire both deflagrating initiators and deflagration-to-detonation devices via fiber optic cable assemblies (FOCA). Relative to known explosive transfer assemblies, FOCAs are lighter, more reliable, less costly, and can be easily and thoroughly tested nondestructively. Although the laser initiated devices (LID) contain moderately sensitive pyrotechnics, their electrical isolation renders them immune from inadvertent initiation by electromagnetic and abnormal optical environments.
摘要翻译： 本发明涉及具有显着提高的安全性和可靠性特征的军火点火系统和方法。 在优选实施例中，激光能量用于通过光纤电缆组件（FOCA）对两个易燃发射器和爆燃至爆震装置发射。 相对于已知的爆炸传递组件，FOCA更轻，更可靠，成本更低，并且可以非破坏性地进行容易且彻底的测试。 尽管激光引发装置（LID）含有适度敏感的烟火技术，但它们的电气隔离使得它们免受电磁和异常光学环境的无意启动。
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公开(公告)号：US5473623A
公开(公告)日：1995-12-05
申请号：US169822
申请日：1993-12-17
CPC分类号： F42B3/113 , H01S5/06825
摘要： The invention relates to providing a reliable means for controlling a laser diode in an initiator for starting a pyrotechnic reaction in an ordnance. The circuit has an array of capacitors to tune the coupling of the input signal to provide for more efficient power transfer from an electrical energy system. The circuit contains a full wave rectifier to provide DC power to operate the circuit. The circuit also contains a two stage current amplifier that is controlled by a differential amplifier. The differential amplifier compares a voltage proportional to the current flowing through the controlled laser diode with a reference voltage. The differential amplifier controls the current amplifier to limit the current that can pass through the laser diode. The circuitry that provides the reference voltage has the ability to drive the reference voltage to zero when the input signal is removed or is too low to drive the circuit properly. This prohibits current spikes from developing in the laser diode when the circuit is shutting down. The reference voltage circuitry also turns the laser diode on relatively slowly to allow the current control circuitry to become stable. This prevents damaging current overshoots that otherwise could occur at the time the laser diode is turned on.
摘要翻译： 本发明涉及提供用于控制起动器中的激光二极管的可靠装置，用于在军火中开始烟火反应。 该电路具有一组电容器以调节输入信号的耦合，以提供从电能系统进行更有效的功率传输。 该电路包含全波整流器，以提供直流电源来操作电路。 该电路还包含由差分放大器控制的两级电流放大器。 差分放大器将与流过受控激光二极管的电流成比例的电压与参考电压进行比较。 差分放大器控制电流放大器来限制可以通过激光二极管的电流。 提供参考电压的电路具有在输入信号被去除时驱动参考电压为零的能力，或者太低而无法正确驱动电路的能力。 当电路关闭时，这禁止在激光二极管中产生电流尖峰。 参考电压电路也使激光二极管相对缓慢，以允许电流控制电路变得稳定。 这样可以防止在激光二极管导通时可能发生的损坏电流过冲。
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公开(公告)号：US5454320A
公开(公告)日：1995-10-03
申请号：US965913
申请日：1992-10-23
摘要： An air bag initiator including a main body and squib. The squib includes a charge mounted in a charge holder, a header press fitted onto the charge holder and a cup welded to the header. The squib also includes first and second lead pins and a bridgewire. A cap snap fits onto the main body and holds the squib in place during subsequent assembly operations. Ferrite beads for frequency attenuation and potting material are located in a cavity of the main body. The first lead is mounted off center in a bore passing through the header to allow bridgewires of different lengths to be used with the same header design. The cup includes a depression to maintain a single explosive powder charge under pressure and in contact with the bridgewire. An outer cup can be welded to the housing and an insulating cup can be provided between the cup of the squid and the outer cup to provide enhanced hermetic sealing of the charge and prevent current from passing between the cups.
摘要翻译： 一种安全气囊起动器，包括主体和爆管。 爆管包括安装在电荷保持器中的电荷，装配到电荷保持器上的集头压力机和焊接到集管头的杯子。 爆管还包括第一和第二引脚和桥梁。 在随后的组装操作期间，帽扣可以装配到主体上并将爆管保持在适当位置。 用于频率衰减和灌封材料的铁氧体磁珠位于主体的空腔中。 第一个引线安装在通过插头的孔中心，以允许不同长度的桥接器与相同的插头设计一起使用。 杯子包括凹陷，以在压力下保持单个爆炸性粉末装料并与桥梁接触。 外杯可以焊接到壳体上，并且可以在鱿鱼杯和外杯之间设置绝缘杯，以提供充电的增强的气密密封并防止电流在杯之间通过。
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公开(公告)号：US5291829A
公开(公告)日：1994-03-08
申请号：US968358
申请日：1992-10-29
CPC分类号： F42D1/05
摘要： A radio frequency attenuating connector includes a secondary coil connected to a load, an electromagnetic shield enclosing the secondary coil and the load, a primary coil, a coupler for detachably coupling the primary coil and the secondary coil, an integrated circuit including a square wave oscillator producing complementary output signals, and first and second switching devices. The first switching device is responsive to one of the complementary output signals for causing a current to flow in one direction through at least a portion of the primary coil during a first half cycle of oscillation, and the second switching device is responsive to another of the complementary output signals for causing a current to flow in an opposite direction through at least a portion of the primary coil. The integrated circuit has an enable feature and includes additional protection circuitry for enhancing the safety of the radio frequency attenuating connector.
摘要翻译： 射频衰减连接器包括连接到负载的次级线圈，围绕次级线圈和负载的电磁屏蔽，初级线圈，用于可分离地耦合初级线圈和次级线圈的耦合器，包括方波振荡器 产生互补输出信号，以及第一和第二开关器件。 第一开关装置响应于互补输出信号中的一个，用于在振荡的第一半周期期间使电流在一个方向上流过初级线圈的至少一部分，并且第二开关装置响应于另一个 用于使电流沿相反方向流过初级线圈的至少一部分的互补输出信号。 集成电路具有使能特征，并且包括用于增强射频衰减连接器的安全性的附加保护电路。
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