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Improvements in or relating to electrical apparatus for supplying electric signals which provide a measure of the angular position of a vector
Improvements in or relating to electrical apparatus for supplying electric signals which provide a measure of the angular position of a vector
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机译：用于提供电信号的电气设备的改进或与之有关的改进，该电气设备提供了矢量角位置的量度
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934,058. Electric analog calculating. GENERAL ELECTRIC CO. Ltd. Sept. 27, 1961 [June 29, 1960], No. 22846/60. Class 37. [Also in Groups XXXVIII and XL (c)] The invention relates to electric analogue apparatus for computing from signals dependent on the orientation of a vector relative to a first set of axes its orientation relative to a second set, where the angular position of the first set relative to the second varies with, and at twice the rate of, variation of the angular position of the vector about two mutually inclined axes of rotation, and is described as applied either to providing a radar indication of the direction of a beam reflected from an aerial member or to controlling the direction of such a beam either manually or during scanning. The aerial member is a plane reflector 5, Figs. 1 and 2 (of an aerial system of a type disclosed in Specification 884,313) on which a collimated beam is incident in a direction parallel to the longitudinal axis 10 of the aerial system to provide a reflected beam whose direction may be varied by rotation of the reflector about an axis 9 which itself is rotatable about a further axis 8. The rotation is by hydraulic means actuated by a mechanical control unit 14 in response to electrical signals supplied to it via leads 18 and 19. The unit 14, which may be of a type disclosed in Specification 905,440, provides two further mechanical outputs in the form of a shaft 21 which rotates from a datum position through an angle equal to the angular displacement (# say) of the reflector 5 (and the axis 9) about the axis 8, and a second shaft 22 which rotates from a datum position through an angle equal to twice that of the angular displacement (# say) of the reflector about the axis 9. These shafts are coupled to the rotors of three synchro resolvers connected in a chain 20 as described below. The beam incident upon the reflector 5 originates from a horn 3 at the focus of a paraboloidal reflector 4 and the horn may nutate about the axis 10 to cause the beam reflected from the reflector 5 to execute a corresponding conical scanning movement. When the beam is reflected along its incident path parallel to the axis 10, Fig. 4, this and the axes 8 and 9 are mutually perpendicular and they then define the directions of a fixed set of reference axes X 3 Y 3 Z 3 . When the reflector is rotated through the angle # about the axis 9 and through an angle 0 about the axis 8, the reflected beam direction, or the axis of beam nutation, rotates through twice these angles to assume a direction 45 which defines another set of reference axes X 0 Y 0 Z 0 . To provide signals which are a measure of the orientation of the beam relative to the fixed set of reference axes X 3 Y 3 Z 3 (which signals may be used for an indication of the beam orientation on a radar display) A.C. signals representative of the direction cosines of the beam directions relative to the axes X 0 Y 0 Z 0 are supplied from a source 29 to the first of a chain 20 of three synchro resolvers. The rotor of this first resolver 30, Fig. 3, and that of the third 32 are connected to the shaft 21 so that each is rotated through an angle - #, whilst that of the second 31 is rotated through an angle - 2# by the shaft 22. As indicated in Fig. 3, the chain successively computes from the supplied direction cosine signals l 0 , m 0 , n 0 , those corresponding to the sets of axes shown in Fig. 4, so that the output signals over leads 26, 27, 28 are representative of the direction cosines of the beam relative to the fixed axes X 3 Y 3 Z 3 . Tocontrol the beam direction, it is initially defined with reference to the fixed axes X 3 Y 3 Z 3 by supplying the resolver chain with signals representative of the direction cosines of the desired direction with reference to these axes X 3 Y 3 Z 3 . These signals may be set either manually, Fig. 5 (not shown), to direct the beam, or cyclically by automatic means to provide a scanning motion. In this case the shafts 21 and 22 are rotated respectively through angles +# and + 2# so that the chain output signals represent the direction cosines l 0 , m 0 , n 0 of the desired direction of the beam relative to to the axes X 0 Y 0 Z 0 . Since, however, the beam should be parallel to the X 0 axis (by definition of this axis) the signals should have the respective values of 1, 0, 0, and any departure of the values of m 0 and no from zero therefore represent the departure of the beam from the desired direction. These two output signals form error signals applied to the leads 18 and 19 to retroactively energize the mechanical control unit 14. Alternatively, the direction cosines relative to the axes X 0 Y 0 Z 0 may be derived by rotating the shafts 21 and 22 through angles - # and - 2# and passing signals in the opposite direction through the resolver chain 20, i.e., by using the leads 26, 27 and 28 as input leads and the leads 23, 24 and 25 as output leads. Specification 934,057 also is referred to. Reference has been directed by the Comptroller to Specification 884,313.
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机译：934,058。电动模拟计算。通用电气有限公司，1961年9月27日[1960年6月29日]，编号22846/60。类别37。[也在第XXXVIII和XL（c）组中]本发明涉及一种电模拟装置，用于根据信号来计算信号，该信号取决于矢量相对于第一组轴的方向及其相对于第二组的方向，其中角度第一组相对于第二组的位置随矢量围绕两个相互倾斜的旋转轴的角位置的变化而变化，并且以其两倍的速率变化，并且被描述为用于提供雷达指示的方向从天线部件反射的光束，或者手动或在扫描过程中控制光束的方向。天线构件是平面反射器5，图1和2。参照图1和2（在规范884,313中公开的类型的天线系统），准直光束沿平行于天线系统的纵轴10的方向入射，以提供反射光束，其方向可以通过旋转天线而改变。反射器绕着本身可绕另一轴8旋转的轴9。该旋转是通过液压装置由机械控制单元14响应通过导线18和19提供给它的电信号而致动的。单元14可以是规范905,440中公开的一种类型，以轴21的形式提供了另外两个机械输出，该轴从基准位置旋转一个角度，该角度等于反射器5（和轴9）围绕该轴的角位移（＃称）在图8中，第二轴22从基准位置旋转一个角度，该角度等于反射器绕轴9的角位移（＃say）的角度的两倍。这些轴连接到三个同步旋转的转子上如下所述，它们以链20连接。入射到反射器5上的光束起源于抛物面反射器4焦点处的角状物3，并且该角状物可以围绕轴线10旋转以使从反射器5反射的光束执行相应的锥形扫描运动。当光束沿其平行于轴10（图4）的入射路径反射时，该光束以及轴8和9相互垂直，然后它们定义了一组固定的参考轴X 3 Y 3 Z 3的方向。当反射镜绕轴9旋转角度＃和绕轴8旋转角度0时，反射光束方向（或光束章动轴）旋转这些角度的两倍，以得出方向45，该方向定义了另一组参考轴X 0 Y 0 Z 0。为了提供测量光束相对于固定参考轴X 3 Y 3 Z 3固定方向的信号（该信号可用于在雷达显示器上指示光束方向），交流信号相对于轴线X 0 Y 0 Z 0的光束方向的方向余弦从源29供应到三个同步旋转变压器的链20的第一个。图3的第一旋转变压器30的转子和第三旋转变压器32的转子连接到轴21，使得每个旋转器旋转角度为##，而第二旋转变压器31的转子旋转角度为2＃。如图3所示，链条根据所提供的方向依次计算余弦信号l 0，m 0，n 0，这些余弦信号对应于图4所示的轴组，从而导联上的输出信号图26、27、28表示光束相对于固定轴X 3 Y 3 Z 3的方向余弦。为了控制光束方向，首先通过向分解器链提供代表所需方向的参考余弦的信号来确定这些参考轴X 3 Y 3 Z 3的固定轴X 3 Y 3 Z 3。这些信号可以手动设置（图5（未显示））以引导光束，也可以通过自动方式周期性地设置以提供扫描运动。在这种情况下，轴21和22分别旋转角度+＃和+ 2＃，使得链条输出信号表示光束相对于轴线X的期望方向的余弦方向l 0，m 0，n 0 0 Y 0 Z 0。但是，由于光束应平行于X 0轴（根据该轴的定义），因此信号应分别具有值1、0、0，因此m 0值与零之间的任何偏离都表示为光束偏离所需方向。这两个输出信号形成施加到导线18和19的误差信号，以向机械控制单元14追溯供电。或者，可以通过将轴21和22旋转一定角度来得出相对于轴线X 0 Y 0 Z 0的余弦方向。 -＃和-2＃，并且沿相反的方向通过分解器链20传递信号，即通过使用导线26、27和28作为输入导线，以及使用导线23、24和25作为输出导线。规格934也参考，057。主计长已对规范884,313进行了引用。
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