| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Method of, and apparatus for, detonating a projectile in the proximity of a target | US247830 | 1988-09-22 | US4895075A | 1990-01-23 | Klaus Munzel |
| Upon detonating a projectile in the proximity of a target, there are produced projectile fragments which fly towards the target in a predetermined direction. To have as many fragments as possible fly towards the target, the projectile must be detonated at a suitably selected angle measured between the line of sight which extends between the projectile and the target, and the projectile flight trajectory. This detonation angle varies as a function of the encountering velocity of the projectile and the target. A predetermined reference value associated with a predetermined encountering velocity value is computed using a stationary firing control system and represented by the quotient c/(2VBg), wherein c is the velocity of light and VBg is the predetermined encountering velocity value. Such reference value is stored in a storage device aboard the projectile. The projectile also contains a device for determining a plurality of encountering velocity values and such device converts the determined encountering velocity values into actual values c/(2VB), wherein c is the velocity of light and VB the measured encountering velocity value. A comparator is connected with the determining device and storage device and compares the actual values and the reference value. Detonation of the projectile occurs once the actual value is substantially equal to or exceeds the stored reference value. | ||||||
| 82 | Sensor for anti-tank projectile | US742661 | 1985-06-07 | US4614317A | 1986-09-30 | Gus Stavis |
| A radar sensor mounted in a projectile detects a target and orients the projectile so that a self-forging fragment, carried in the projectile, may be properly fired toward the top of the target. The sensor provides means for generating a broad fan beam containing a plurality of closely spaced interference lobes spaced so as to encompass a predetermined target size. The interference lobes are continuously swept across the line of travel and the receiving circuitry provides means for detecting the desired target within the interference lobes. | ||||||
| 83 | Laser range finder with non-linearity compensation | US587316 | 1984-03-07 | US4613231A | 1986-09-23 | Guenter Wichmann |
| The receiver (3') of a laser range finder operating on the pulse propagation and including a transmitter unit (1) and a first receiver unit (2) is sampled by a spike pulse (5) derived from the transmitter pulse in such a way as to produce a low-frequency representation (10). The non-linearity of the phase modulation of this spike pulse, which is detrimental in very accurate measurements taken over long distances, is eliminated in that the oscillations of high-frequency oscillator (8) are supplied to a second receiver unit (2') in which they are scanned by the same spike pulse (5) and are then also suitably transformed into a low-frequency representation (10'). A counter (12) then counts the low-frequency zero-passages of the oscillator, beginning with the onset of the low-frequency cycle, thereby eliminating all errors (FIG. 1). | ||||||
| 84 | Doppler signal processing circuit | US63975 | 1970-07-21 | US4333079A | 1982-06-01 | John O. Dick; Joe A. McKenzie; William C. Bradford |
| A signal processing circuit for producing a warhead firing pulse when the rhead is in a position to cause maximum target damage in a missile, target encounter. The received doppler signal is processed through filter circuits and a first band-pass amplifier. A second band-pass amplifier tuned to pass a narrow portion of the frequency spectrum above the doppler signal is connected in parallel with the first amplifier and its output signal is used to vary the threshold bias to compensate for the presence of extremely noisy signals. | ||||||
| 85 | Doppler distance measuring system | US814354 | 1959-05-19 | US4218977A | 1980-08-26 | Henry P. Kalmus |
| 3. A missile fuzing system adapted to detonate the missile at a predetermd altitude regardless of the reflection coefficient of or the velocity of approach to the earth, said system comprising in combination: an antenna adapted to radiate radio frequency energy toward a target and receive reflected energy therefrom, an oscillating detector connected to said antenna, said oscillating detector mixing the transmitted and reflected energy to produce a doppler signal at its output representative of the relative velocity between the missile and the earth, first envelope detection means connected to the output of said oscillating detector for producing a negative signal corresponding to the envelope of said doppler signal, a network connected to the output of said oscillating detector for producing an output signal having a peak amplitude which is proportional to the product of a first and a second quantity, said first quantity being proportional to the peak amplitude of said doppler signal and said second quantity being proportional to doppler frequency, second envelope detection means connected to said network for producing a positive signal corresponding to the envelope of said output signal, a differentiating circuit comprising a first resistor having one end connected to circuit ground, a capacitor having one end connected to the other end of said first resistor and the other end of said capacitor connected to the output of said first envelope detection means so that a voltage is developed across said first resistor corresponding to the differentiation of the negative signal produced by said first envelope detection means, a variable resistor having one end connected to the point intermediate said first resistor and said capacitor and the other end of said variable resistor connected to the output of said second envelope detection means so that a second voltage is developed across said first resistor corresponding to the positive signal produced by said second envelope detection means, the amplitude of said second voltage being dependent on the adjustment of said variable resistor, an amplifier to which the junction point of said first resistor, said capacitor and said variable resistor is connected to apply the sum of said first and said second voltages across said resistor to said amplifier, a firing circuit to which the output of said amplifier is set, said firing circuit producing a firing pulse in response to the zero cross over of said sum of said first and second voltages, the altitude at which said sum appearing across said first resistor becomes zero being determined by the adjustment of said variable resistor, and a detonator connected to the output of said firing circuits for initiating detonation upon receipt of said firing pulse. | ||||||
| 86 | Dipole antenna for proximity fuze | US594632 | 1945-05-19 | US4207841A | 1980-06-17 | Thomas M. Bloomer |
| 1. In combination with a bomb or similar projectile intended to move rapi through the air and having aerodynamic characteristics such that the longitudinal axis of said projectile will be substantially coincident with its trajectory, a dipole antenna mounted on a cylindrical projection which extends from the nose of said projectile, said antenna comprising a pair of extending arms normal to said longitudinal axis and on opposite sides thereof, a proximity fuse carried by said projectile, and means connecting said antenna to said fuse. | ||||||
| 87 | Jammer apprehending amplifier for proximity fuzes | US611084 | 1956-09-20 | US4203365A | 1980-05-20 | Bradshaw Burnham; Charles F. Nichols |
| 1. In a device for exploding a vehicle in proximity to a target, a proxim control circuit comprising a source of electromagnetic energy, means connected to said source for radiating said energy into space and for intercepting electromagnetic energy therefrom, including any portion of said radiated energy reflected from a target, first circuit means connected to said source and being selectively responsive to said reflected energy for generating an initiating signal, normally ineffective electroresponsive means connected to said last named means for actuating a firing mechanism upon being rendered effective by said initiating signal, and second circuit means connected to said source and to said electroresponsive means being selectively responsive to intercepted energy other than said reflected energy for maintaining said electroresponsive means ineffective until a predetermined time after interception of said other energy. | ||||||
| 88 | Grid pulsed oscillator and detector | US840479 | 1959-09-16 | US4194202A | 1980-03-18 | William E. Doyle |
| 5. A pulse doppler proximity fuze comprising a self-pulsing oscillator foreveloping a series of radio frequency electromagnetic energy impulses, an antenna electrically connected to said oscillator for radiating said impulses into space and for intercepting reflected impulses thereby to effect a variation in the amplitude of said impulses, a pair of detectors electrically connected to the said oscillator circuit for developing an output signal in proportion to the energy of the said reflected signal during the peak amplitude of said impulse, a thyratron firing circuit said detectors having means for detecting spurious signals and target signals but utilizing only the target signals for firing the thyratron firing circuit; and an electroresponsive ignition device electrically coupled to the thyratron firing circuit, said device being ignitable upon actuation of the thyratron firing circuit by said target signal. | ||||||
| 89 | Fore and aft fuzing system | US170286 | 1962-01-31 | US4185560A | 1980-01-29 | Mayer Levine |
| 1. In a guided missile fuze system that has optimum kill probability against all sizes of targets, the combination comprising:(a) a fuzing channel for generating an output pulse in response to a received target signal after a predetermined time delay from the time said target signal is received,(b) a guard channel for generating an output pulse in response to the loss of a target signal detected by said guard channel,(c) and a firing circuit coupled to the outputs of said fuzing channel and said guard channel for firing the fuze in response to a firing pulse received from either of said channels. | ||||||
| 90 | Computer fuzes | US472542 | 1954-12-01 | US4168663A | 1979-09-25 | Hans W. Kohler |
| 1. In an ordnance projectile having a side-spray warhead with a static frentation velocity V.sub.FS, an ordnance fuze comprising: radar means for making measurements of range and sight angle of a target; sources of fixed voltages proportional to predetermined target coordinates Z.sub.1, Z.sub.2, and Z.sub.3, in a coordinate system that rides with the fuze, the fuze trajectory being in the plus-Z direction; means for obtaining three voltages proportional to r.sub.1, r.sub.2, and r.sub.3, where r.sub.1, r.sub.2, and r.sub.3 are the fuze-to-target distances when the target Z-coordinates are Z.sub.1, Z.sub.2, and Z.sub.3 respectively; means for obtaining a voltage proportional to V.sub.Z, where V.sub.Z is the rate of change of the Z-coordinate of the target with time; a source of fixed voltage proportional to said static fragmentation velocity V.sub.FS ; electronic computer means for solving the equation.DELTA.T=Z.sub.3 /V.sub.Z -r.sub.4 /V.sub.FS,wherer.sub.4 =.sqroot.A.sup.2 r.sub.1.sup.2 -B.sup.2 r.sub.2.sup.2 +C.sup.2 r.sub.3.sup.2, ##EQU1## r.sub.4 being the fuze-to-target distance corresponding to Z = zero, said computer means including a subcomputer for solving the equationR.sub.4 =.sqroot.A.sup.2 r.sub.1.sup.2 -B.sup.2 r.sub.2.sup.2 +C.sup.2 r.sub.3.sup.2 ;and means for causing detonation of said warhead at time t.sub.3 +.DELTA.T, where t.sub.3 is the time at which the Z-coordinate and distance of the target are Z.sub.3 and r.sub.3 respectively. | ||||||
| 91 | Time delay computer using fuze doppler for air-to-air missiles | US868157 | 1978-01-09 | US4135452A | 1979-01-23 | Lloyd E. Kinsey; Gregory C. Roush |
| Fuzing incorporating a doppler signal for establishing warhead fuzing time.ore particularly, circuitry is provided in which the doppler is detected, integrated and used upon exceeding the level of a preset threshold device to enable two preset counters to effect fuzing only if their individual preset counts are achieved within a time established by their associated timers. A third, higher count, preset counter effects the fuzing if not earlier realized from one of the other counters, while a dropout detector responsive to the threshold device output effects the fuzing in cases where the threshold level is exceeded and then lost. | ||||||
| 92 | Doppler distance measuring system | US808277 | 1959-04-22 | US4118702A | 1978-10-03 | Jacob Rabinow |
| 1. A system for measuring the distance to a target comprising: means for nsmitting a signal to said target and for receiving a return signal from said target, means for mixing said transmitted signal and said return signal to produce a doppler signal, means connected to said mixing means and responsive to said doppler signal for initiating a first voltage timing function, means having a signal input connected to said mixing means and responsive to said doppler signal and a gating input responsive to said first timing function for initiating a second voltage timing function when said doppler signal reaches a predetermined value, and means connected to said means for initiating a second voltage timing function and responsive to said second timing function for producing a signal when said target is at a predetermined distance from said transmitting and receiving means. | ||||||
| 93 | Means for suppressing oscillator-generated noise in doppler proximity fuzes | US805348 | 1959-04-09 | US4108075A | 1978-08-22 | Wilbur S. Hinman, Jr.; Helmut Sommer; Louis M. Tozzi |
| 1. In a doppler proximity fuzing system including an oscillating detector oviding diode detection, an antenna to which the output of said oscillating detector is coupled, and an amplifier to which the detected signal from said oscillating detector is fed, the improvement comprising means for suppressing oscillator-generated noise, said means including a 45.degree. r-f phase shift network connected between the output of said oscillating detector and said antenna, diode detection means connected to said antenna and poled oppositely to the diode detection provided by said oscillating detector, the detected signal from said diode detection means being fed to said amplifier along with the detected signal from said oscillating detector, and means to which at least one of said detected signals is fed prior to application to said amplifier for adjusting the magnitude of the detected oscillator-generated noise appearing in one of said detected signals to be substantially equal to the magnitude of the detected oscillator-generated noise appearing in the other of said signals. | ||||||
| 94 | Remotely controlled electronic fuze | US577510 | 1975-05-14 | US4044680A | 1977-08-30 | Richard T. Ziemba |
| A weapon system comprises a fuze and a transmitter, said transmitter transmitting an RF coded pulse signal whose pulse repetition frequency presets the time base of the fuze and whose pulse combination code presets the mode of operation of the fuze, the fuze having an RF detector for receiving and detecting said signal, a logic circuit for reading said signal with respect to time base and mode of operation, and a timing circuit for enabling said detection for a predetermined time period at a predetermined time in flight. | ||||||
| 95 | Method of testing air target fuzing systems | US621182 | 1975-10-09 | US3986394A | 1976-10-19 | William D. Greenlees |
| A method of testing air target fuzing systems by moving a simulated targetast stationarily mounted fuzes and fuzed warheads. A simulated target is fired from a large gun past one or more fuzes and/or fuzed warheads and the encounter between the simulated target and the fuzes is recorded on film and magnetic tape to provide a permanent record. | ||||||
| 96 | Two selector gate for active-passive radio proximity fuzes | US679261 | 1967-10-30 | US3985080A | 1976-10-12 | Raymond T. Kostecki |
| A device for use in an active-passive fuzing system to guard against the functioning of the fuze due to jamming signals transmitted by the target. A gate circuit is utilized to prevent an enabling signal to be passed to the warhead detonator until there is jamming signal fall-off in the guard detector and there is an increase in signal strength in the passive detector. | ||||||
| 97 | Radiometric target detection device | US142837 | 1971-04-28 | US3978797A | 1976-09-07 | William W. Harrington; Frederick C. Alpers |
| A radiometer is mounted in a guided missile for detecting electro-magnetichermal power in the microwave region of the spectrum radiated from an area of suspected targets with circuitry coupled thereto to respond to a predetermined change in level of radiation to generate a warhead fuzing signal. | ||||||
| 98 | Proximity fuse | US454611 | 1974-03-25 | US3934510A | 1976-01-27 | Bjorn Dahl |
| A proximity fuse comprising at least two frequency selective amplifiers having different band-pass characteristics and both receiving the same input signals. The first amplifier, having the narrower band-pass filter, will activate a detonator upon receipt of a signal which lies within the pass-band of said filter and which exceeds a given value. If a signal appears in the pass-band of the second amplifier which has the broader pass-band, and said signal exceeds a certain level, the output of said second amplifier will change said level which a signal in said first amplifier must exceed in order to activate the detonator.The output terminal of said first amplifier is connected to a first level detector, and the output terminal of said second amplifier is connected to a second level detector. Said first and second level detectors are interconnected so that the threshold value of said first level detector is changed in pace with the output signal from said second level detector when the latter detector receives a signal from the second amplifier. In order to prevent the proximity fuse from coming into operation until after a certain time after the launching of a projectile, the second level detector comprises delay elements. These delay elements are also utilized to prolong the change of the threshold value of the first level detector after said signal in the pass-band of said second amplifier has vanished. | ||||||
| 99 | Guided missile fuze system | US34709864 | 1964-02-24 | US3929075A | 1975-12-30 | BEANE THEODORE E; KIRSCH ALAN L |
| 1. In a guided missile fuze system of the type wherein electromagnetic energy is radiated and a portion of said radiated energy is returned by a reflecting means for actuating a firing circuit the combination for providing countermeasures against a sweep jammer comprising: A. A FIRST FUZING CHANNEL RESPONSIVE TO SIGNALS RECEIVED IN A FIRST FREQUENCY BAND, B. A FIRST FIRING CIRCUIT, C. A NORMALLY CLOSED RELAY FOR CONNECTING SAID FIRST FUZING CHANNEL TO SAID FIRST FIRING CIRCUIT, D. A SECOND FUZING CHANNEL RESPONSIVE TO SIGNALS RECEIVED IN A SECOND FREQUENCY BAND THAT IS HIGHER IN FREQUENCY THAN SAID FIRST FREQUENCY BAND, E. A SECOND FIRING CIRCUIT, F. A NORMALLY OPEN RELAY FOR CONNECTING SAID SECOND FUZING CHANNEL TO SAID SECOND FIRING CIRCUIT, G. A SIGNAL PROCESSING CHANNEL RESPONSIVE TO SIGNALS RECEIVED IN A THIRD FREQUENCY BAND THAT IS HIGHER IN FREQUENCY THAN SAID SECOND FREQUENCY BAND, H. RELAY ACTUATING MEANS RESPONSIVE TO AN OUTPUT FROM SAID SIGNAL PROCESSING CHANNEL WHEN SIGNALS ARE RECEIVED FROM THE SWEEP JAMMER FOR CLOSING SAID NORMALLY OPEN RELAY FOR A PREDETERMINED PERIOD THAT IS LESS THAN THE TIME FOR THE SWEEP TO TRAVEL FROM SAID SIGNAL PROCESSING CHANNEL TO SAID SECOND FUZING CHANNEL, I. RELAY ACTUATING MEANS RESPONSIVE TO AN OUTPUT FROM SAID SECOND FUZING CHANNEL WHEN SIGNALS ARE RECEIVED FROM THE SWEEP JAMMER FOR OPENING SAID NORMALLY CLOSED RELAY WHEREBY SAID FIRST FIRING CIRCUIT WILL NOT FIRE ON THE JAMMING SIGNAL.
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| 100 | Chaff discrimination system | US79781659 | 1959-03-06 | US3918059A | 1975-11-04 | ADRIAN DONALD J |
| 1. A microwave fuze system for a missile including a firing circuit having means for discriminating between a target and a countermeasure reflector, comprising in combination, a frequency modulated transmitter, an antenna coupled to said transmitter and radiating a signal polarized in a predetermined direction, a pair of receiving antennas including one antenna polarized in the same direction as said transmitting antenna and one antenna polarized in a direction normal to said transmitting antenna, a first switch means coupled to said receiving antennas and adapted to alternately connected said receiving antennas to a mixing means whereby the received signals are mixed with a portion of the transmitted signal, means for amplifying a band of said mixed transmitted and received signals, a pair of envelope detector means connected to said amplifying means by a second switch means, a difference amplifier adapted to receive the output from said pair of envelope detector for coupling a firing signal to said firing circuit when the energy level of the output of a certain one of said detectors exceeds the energy level of the other detector output, and a periodic wave control means actuating said first and second switch means whereby said pair of receiving antennas and said pair of envelope detectors are synchronously connected to said mixing means and said amplifying means respectively.
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