7,728 research outputs found

    Simple non-destructive tests for electroexplosive devices

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    Electrothermal behavior of bridgewire-explosive interface is defined by pulsing electroexplosive device with a safe level of current and examining the resistance variation of bridgewire. Bridgewire provides signal which describes average wire temperature and heat sinking to the explosive and enclosure

    Generation of Narrow High Current Pulses

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    Many of the fundamental factors affecting the initiation of electroexplosive devices have not been satisfactorily explained. A description of a narrow, high current pulse generator capable of pulses 4 microseconds wide and 94 amperes is given which will be useful in the study of the initiation mechanism

    Terminated capacitor discharge firing of electroexplosive devices

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    Terminated capacitor discharge firing of electroexplosive device

    Half-sine wave pulse firing of electroexplosive devices

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    Half-sine wave pulse firing of electroexplosive device

    Electrothermal follow display apparatus for electroexplosive device testing

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    A self-balancing bridge for ascertaining the electrothermal and nonlinear behavior of an electroexplosive device is described. A sinusiodal current is passed through the device which provides a signal in the form of a unique Lissajous display. The display can be qualitatively evaluated and abnormal units can be readily detected

    Nondestructive testing of insensitive electroexplosive devices by transient techniques

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    Nondestructive testing of insensitive electroexplosive devices by transient technique

    Borrowing constraints, household debt, and racial discrimination in loan markets

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    Housing - Finance ; Discrimination in mortgage loans
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