Proximity sensing device
阅读：216发布：2022-01-04
专利汇可以提供Proximity sensing device专利检索，专利查询，专利分析的服务。并且A jamming signal responsive, proximity sensing fuse for detonating a missile warhead within the anticipated lethal volume of a target emitting a jamming signal. The fuse includes a missile carried antenna having two diametrically opposed pairs of longitudinally spaced, resonant slots. Each slot pair is connected to a respective magic tee for providing a phase difference signal whose frequency varies as a function of the range, bearing and closing velocity of the jamming signal emitting target. The frequency varying phase difference signal is fed to a signal processor which includes a Schmitt trigger for providing a series of rectangular pulses whose timing and durations are controlled by the frequencies of the phase difference signal having an amplitude exceeding predetermined threshold levels. A step counter responsive to the pulses provides a step increasing output voltage which, upon reaching a predetermined threshold level, causes a fuse switch to provide a detonation signal to a warhead detonator. Circuitry is provided to assure that the detonation signal will not be produced when less than a predetermined number of pulses have been provided within a predetermined time interval.，下面是Proximity sensing device专利的具体信息内容。
1. Apparatus for detonating an explosive warhead in a missile in lethal proximity to a target which is emitting a jamming signal comprising: antenna means adapted to be carried by the missile for sensing the target emitted jamming signal; means connected to said antenna means and responsive to the jamming signal sensed for providing an output signal having a frequency which varies as a function of target bearing relative to the missile; and detonation signal producing means connected to said jamming signal responsive means for receiving said output signal and responsive thereto for providing a detonation signal to the warhead when the missile is positioned in lethal proximity to the target.
2. Apparatus according to claim 1 wherein said antenna means includes: means for sensing the jamming signal at a plurality of spaced locations.
3. Apparatus for detonating an explosive warhead in a missile in lethal proximity to a target which is emitting a jamming signal comprising: antenna means adapted to be carried by the missile for sensing the target emitted jamming signal at a plurality of spaced locations; phase detecting means connected to said antenna means and responsive to the jamming signal sensed for providing a phase difference signal having a frequency which varies as a function of target bearing relative to the missile and being indicative of the magnitude of the phase difference between the phase of the signal sensed at one of said locations and that of the signal sensed at another of said locations; and signal processing means connected to said phase detecting means for receiving said phase difference signal and for providing a detonation signal to the warhead in response to a predetermined variation of said phase difference signal when the missile is positioned in lethal prOximity to the target.
4. Apparatus for detonating an explosive warhead in a missile in lethal proximity to a target which is emitting a jamming signal comprising: antenna means adapted to be carried by the missile for sensing the jamming signal at a plurality of spaced locations; phase detecting means connected to said antenna means for providing a phase difference signal indicative of the magnitude of phase difference between the phase of the signal sensed at one of said locations and that of the signal sensed at another of said locations; trigger means connected to said phase detecting means for providing an output signal when said phase difference signal is indicative of a predetermined phase difference; and counter means connected to said trigger means for receiving said output signal and for providing a detonation signal to the warhead in response to receiving a predetermined number of said output signals when the missile is positioned in lethal proximity to the target.
5. Apparatus according to claim 4 wherein said counter means includes means for preventing said detonation signal from being produced when less than said predetermined number of trigger output signals have been provided within a predetermined time interval.
6. Apparatus according to claim 4 wherein said trigger means comprises: amplifying means connected to said phase detection means for receiving and amplifying said phase difference signal; and bi-polar switch means connected to receive the amplified output of said amplifying means for providing said output signals.
7. Apparatus according to claim 6 wherein said amplifying means includes: variable band pass means connected to said bipolar switch means and responsive to said output signal thereof for passing high frequency phase difference signals to said bipolar switch means during a predetermined time interval and for attenuating high frequency phase difference signals during other time intervals.
8. Apparatus for detonating an explosive warhead in a missile in lethal proximity to a target which is emitting a jamming signal comprising: antenna means including a pair of resonant slots spaced apart a greater distance than the wave length of the jamming signal and adapted to be carried by the missile for sensing the jamming signal at a corresponding pair of spaced locations; phase detecting means connected to said antenna means for providing a phase difference signal indicative of the magnitude of the phase difference between the phase of the signal sensed at one of said locations and that of the signal sensed at the other of said locations; and signal processing means connected to said phase detecting means for receiving said phase difference signal and for providing a detonation signal to the warhead in response to a predetermined variation of said phase difference signal when the missile is positioned in lethal proximity to the target.
9. Apparatus according to claim 8 wherein said resonant slots are adapted to be positioned adjacent a lateral surface of the missile, the major dimensions of said slots extending along the same line parallel to the axis of said missile.
10. Apparatus according to claim 9 wherein: said antenna means further comprises an additional pair of resonant slots adapted to be positioned adjacent a lateral surface of the missile which is diametrically opposite the first said lateral surface, the major dimensions of said additional slots extending along the same line parallel to the axis of said missile, and said additional slots being spaced apart a greater distance than the wave length of the jamming signal; and said detonating signal producing means futher comprises additional phase detecting means connected to said phase difference cycle signal means and to said additional pair of resonant slots for providing to said cycle signal means a second phase difference signal indicative of the magnitude of phase difference between the phase of the signal sensEd at one of said additional slots and that of the signal sensed at the other of said additional slots.
11. Aparatus for sensing the proximity of a moving signal source comprising: antenna means for sensing the signal at a plurality of spaced locations; phase detecting means connected to said antenna means for providing a phase difference signal indicative of the magnitude of phase difference between the phase of the signal sensed at one of said locations and that of the signal sensed at another of said locations; and signal processing means including trigger means connected to said phase detecting means for receiving said phase difference signal and for providing trigger output pulses each ooccurring in response to said phase difference signal exceeding a first predetermined threshold level and each having a duration controlled in response to said difference signal exceeding a second predetermined threshold level, said processing means further including means for providing a proximity signal pulse in response to receiving a predetermined number of said pulses within a predetermined interval.
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