Method and apparatus for thruster transient control
    31.
    发明公开
    Method and apparatus for thruster transient control 失效
    用于脉宽调制器瞬态控制的方法和装置

    公开(公告)号:EP0148550A3

    公开(公告)日:1986-02-12

    申请号:EP84302734

    申请日:1984-04-24

    IPC分类号: G05D01/08 B64G01/26

    CPC分类号: B64G1/26 G05D1/0883

    摘要: Transients and steady state error induced in maneuvering a satellite due to a disturbance torque caused by thrust mismatch or differential in the alignment of thrusters with respect to the center of mass are minimized by introducing a torque balancing bias at the input of a thrust modulator of the thrusters (18, 20) prior to sensing position or attitude error. The bias may instantly off-modulate the thruster control signal to cancel the effects of attitude transients before errors develop. Other axes thrusters (22, 24, 11, 18) may be on-modulated instantaneously to compensate for cross- axis torque. The bias may be introduced into the satellite control scheme by manual ground control or in automatic on-board compensation based on stored parameters obtained for example from calibration measurements. Specifically, the torque balancing bias may be developed by reference to thrust mismatch detected and stored during previous maneuvers, thus anticipating expected attitude error without actual detection thereof.

    Dual mode cavity stabilized oscillator
    32.
    发明公开
    Dual mode cavity stabilized oscillator 失效
    振荡器与频率确定双模式谐振腔。

    公开(公告)号:EP0123448A1

    公开(公告)日:1984-10-31

    申请号:EP84302026.4

    申请日:1984-03-27

    IPC分类号: H03B5/18

    摘要: A stable electromagnetic oscillator (30) comprises an amplifying element (3) in feedback association with a dual mode resonant cavity (12) that provides a double pole bandpass filter function. Two orthogonal modes (1 and 2) of electromagnetic energy resonate within the cavity (12). An output fromthe amplifying element (3) excitationally couples into the first mode (1), while the second mode (2) couples into the input of the amplifying element (3). The output (8) of the oscillator (30) is obtained from the first mode (1). Optional injection lock can be used for greater stability by means of coupling a stable a.c. reference (9) into the cavity (12) in alignment with the second mode (2). Optional electronic frequency tuning comprises a phase or frequency comparator (11) and a reference a.c. source (13), producing a d.c. feedback signal fed to varactor diodes (10). Coupling ports (4, 5, 6, 7) of the cavity (12) can be, e.g., irises, capacitive probes, coaxial probes, or any combination thereof. The electrical field associated with each port (4,5,6,7) is aligned with the electrical field of the mode (1 or 2) coupled thereby. A dielectric resonator can be positioned within the cavity (12) to allow for physical shrinking of the cavity (12) while maintaining the electromagnetic characteristics of the cavity (12).

    Coupler having arbitary impedance transformation ratio and arbitary coupling ratio
    35.
    发明公开
    Coupler having arbitary impedance transformation ratio and arbitary coupling ratio 失效
    Koppler mit beliebigem Impedanztransformations- undKopplungsverhältnis。

    公开(公告)号:EP0066015A1

    公开(公告)日:1982-12-08

    申请号:EP81302294.4

    申请日:1981-05-22

    IPC分类号: H01P5/18

    CPC分类号: H01P5/227 H01P5/225

    摘要: An impedance transforming coupler (27,28) is disclosed which may be used as a power divider or power combiner at microwave frequencies. The power division or power combination ratio is arbitrary, and the impedance transformation ratio is arbitrary. These couplers may be used in a circuit to power-combine amplifiers (11, 12). The insertion loss of the circuit is low and the bandwidth is improved by an order to two to one over prior art systems which had separate circuits for matching the impedance and providing power combining. The coupler is optimally a branch line coupler having four curved branches a quarter wavelength long at the center frequency. The output ports are 90° out of phase. Simple formulas are given relating the desired admittances of each of the four branches to k, the desired power coupling ratio, and Y, the desired admittance transformation ratio.

    摘要翻译: 公开了可以用作微波频率的功率分配器或功率组合器的阻抗变换耦合器(27,28)。 功率分配或功率组合比是任意的,阻抗变换比是任意的。 这些耦合器可以用于电路组合放大器(11,12)中。 电路的插入损耗低,并且与现有技术的系统相比,带宽被改善了两到一个,其具有用于匹配阻抗和提供功率组合的分离电路。 耦合器是最佳的分支线耦合器,其中心频率具有四分之一波长长的四个弯曲分支。 输出端口为90°异相。 给出了将四个分支中每个分支的期望导纳与期望的功率耦合比k相关联的简单公式,以及期望的导纳变换比Y。

    Machine gun and feed system therefor
    36.
    发明公开
    Machine gun and feed system therefor 失效
    机枪并为它输送系统。

    公开(公告)号:EP0021717A1

    公开(公告)日:1981-01-07

    申请号:EP80301956.1

    申请日:1980-06-10

    发明人: Bains, William R.

    IPC分类号: F41D10/34 F41D10/28

    摘要: An externally powered twin-barrel machine gun includes a shuttle (42) having two firing chambers (64),(66). The shuttle linearly moves between two positions sothatthefiring chambers are alternately fed a round of ammunition and discharged. A feed system (21) has a pair of augers (23,24) each with a helical groove (26) therein which receives a round of ammunition which obtains a dwell position on a zero pitched section (28) of the grooves. A ramming system (91) rams a round of ammunition to the firing chamber aligned therewith and simultaneously ejects any spent cartridge through a forward aperture (62) in the housing (16). The spent cartridge is frictionally engaged by an axially aligned acceleration belt (76) which quickly withdraws the spent cartridge from the firing chamber and accelerates it onto a deflection cam (88).

    Feeding system having an intermediate accumulator, and machine gun incorporating same
    37.
    发明公开
    Feeding system having an intermediate accumulator, and machine gun incorporating same 失效
    供应系统缓冲区中,与该系统配备机枪。

    公开(公告)号:EP0020095A1

    公开(公告)日:1980-12-10

    申请号:EP80301700.3

    申请日:1980-05-22

    IPC分类号: F41D10/02 B65G47/51

    CPC分类号: B65G47/5113 F41A9/04 F41A9/29

    摘要: A accumulator arrangement (10) for a machine gun has a handling conveyor (17) passing through a supply channel (16), a bypass channel (14), and a return- channel (18). The supply channel leads to a freed system (12) of a machine gun. At the junction of bypass channel and return channel there is connected to a return conveyor (46) leading from the feed system. A gate (24, 50, 52) is mounted at the junction of the bypass channel and supply channel operably between two positions, one position directing ammunition (58) on the handling conveyor onto a supply conveyor (44) leading to the feed system and a second position directing ammunition on the handling conveyor through the bypass channel via the return channel. Upon release of a trigger mechanism operably connected to the gun, the gate moves from its first position to the second position. The feed system continues its forward operation to clear itself of any live ammunition therein. The handling conveyor maintains a forward mode directing ammunition into the bypass channel. A reversing mechanism reverses the handling conveyor to retrieve live ammunition from the bypass channel to the supply channel after the feed system is cleared of all live ammunition. So the live ammunition intermediately accumulated in the bypass channel can be fed to the feed system during the next operation of the machine gun.
    The accumulator arrangement and feed system might also be used for article handling systems in general which handle individual linkless articles other than ammunition in rapid sequence.

    摘要翻译: 用于机枪的储液器装置(10)具有处理传送带(17)通过一个供给通道(16),旁通通道(14),和一个回流通道(18)。 供给通道导致机枪的释放系统(12)。 在旁路通道和返回通道的连接处有连接到返回输送机(46)从所述进料系统的龙头。(24,50,52)被安装在旁路通道和供给通道的交汇处可操作地在两个位置之间的栅极 ,一个位置引导所述搬运传送机上弹药(58)安装到供给传送带(44),从而导致进料系统和第二位置通过经由所述返回通道的旁通通道中的处理传送带上引导弹药。 当可操作地连接到枪的触发机构释放,栅极从其第一位置到第二位置移动。 进料系统。其中继续向前运行,以清除任何实弹的本身。 该处理输送带维持前进模式引导弹药到旁通通道。 反转机构反转输送处理的进料系统被清除所有实弹的后从旁路通道到供给通道检索实弹。 因此,在旁路通道中间积累的实弹可以机枪的下一个手术过程中被输送到进料系统。 ... 蓄能器布置和馈电系统可能因此可用于在一般物品处理系统哪处理比在快速序列弹药其他个体linkless制品。

    A projector for projecting electromagnetic control signals
    38.
    发明公开
    A projector for projecting electromagnetic control signals 失效
    发送者电子邮件Steuersignale。

    公开(公告)号:EP0009899A1

    公开(公告)日:1980-04-16

    申请号:EP79301855.7

    申请日:1979-09-10

    IPC分类号: F41G7/26 G02B27/17

    CPC分类号: F41G7/263 G02B26/108

    摘要: A projector for projecting optical signals for controlling a missile comprises means for producing two alternately orthogonally scanned rectangular beams (p,y) from a single incident beam derived from a single source of laser radiation (2) and a modulator for pulse modulating said source at a plurality of pulse rates over first and second ranges of frequencies corresponding to respective ones of said two beams. The beam producing means is formed by two prism elements (14, 16) relatively movable with respect to each other by a transducer (12) to cause rotation of the beams. A Pechan prism (10) with a reversion axis oriented at 45° with respect to the length of the rectangular beam is preferred for use as the beam rotator.

    摘要翻译: 用于投射用于控制导弹的光信号的投影仪包括用于从源自单个激光辐射源(2)的单个入射光束产生两个交替正交扫描的矩形波束(p,y)的装置,以及用于将所述源 在与所述两个波束中的相应的波束对应的频率的第一和第二范围上的多个脉冲速率。 光束产生装置由通过换能器(12)可相对于彼此相对移动以引起光束旋转的两个棱镜元件(14,16)形成。 具有相对于矩形束的长度定向为45°的反转轴的Pechan棱镜(10)优选用作光束旋转器。

    Pneumatically actuated ram air steering system for a guided missile
    39.
    发明公开
    Pneumatically actuated ram air steering system for a guided missile 失效
    气动致动冲压空气控制装置导弹。

    公开(公告)号:EP0234096A1

    公开(公告)日:1987-09-02

    申请号:EP86308341.6

    申请日:1986-10-27

    IPC分类号: F42B10/00

    CPC分类号: F42B10/663

    摘要: An opening (14) in the nose (12) of a missile allows entry of ram air during missile flight to a central chamber (18). Oppositely oriented steering jets (22),(24) are innerconnected with the aft end of the central chamber (18). A diverting mechanism (26) is located between the central chamber (18) and each of the steering jets (22),(24) to allow either one or none of the steering jets (22),(24) to provide correctional steering forces when desired. The rotatable diverting mechanism (26) is pneumatically driven by ram air communicated to an actuation chamber (44) located aft of the valve and controlled by electrically energized solenoids (60).

    Method of making a honeycomb structure
    40.
    发明公开
    Method of making a honeycomb structure 失效
    蜂窝结构的制作方法

    公开(公告)号:EP0136096A3

    公开(公告)日:1987-02-04

    申请号:EP84305871

    申请日:1984-08-29

    发明人: Stonier, Roger A.

    IPC分类号: B32B03/12 C09J05/00

    摘要: A technique for making a honeycomb structure includes bonding a less than totally cured composite skin (16) to a possibly contoured honeycomb core (8). The composite skin (16) comprises fibers and a resin chosen to maximize the strength and stiffness of the skin (16) when cured. Non- contiguous adhesive fillets (5) are prepositioned onto faying surfaces of the honeycomb core (8). The adhesive (5) is preselected, independently of the preselection of the resin, to maximize the strength of the bond between the skin (16) and the core (8). A thin, lightweight scrim cloth (14) is interposed between the starting skin (16) and the filleted core (8). The scrim cloth (14) prevents resin from flowing into the core (8) and allows a safe place for the intermingling of resin and adhesive (5). The assemblage is heated under pressure, cocuring the adhesive (5) and the resin. The fillets (5) are preferably prepositioned on surfaces (10) by means of applying an adhesive-coated fabric to the faying surface, heating the fabric-covered core (8) so that some of the adhesive (5) flows out of the fabric (1) and into the core (8) at a region near the faying surface, cooling the core (8) so that the only substance remaining adhered to the core edges (10) is the adhesive fillets (5).