-
公开(公告)号：US3816005A
公开(公告)日：1974-06-11
申请号：US27198372
申请日：1972-07-14
Applicant: SUNDSTRAND DATA CONTROL
Inventor： KIRSCHNER ROBERT K
CPC classification number: G05D1/0676 , B60K2350/2052 , G01S1/02 , G02B27/01 , G02B27/0101 , G02B27/0149 , G02B2027/0154 , G02B2027/0156 , G02B2027/0169
Abstract: An apparatus for displaying collimated images including an ellipsoidal mirror having a focal surface and means for generating a bar and scale image for the mirror in the focal surface. The means generating a scale image includes an elongated strip of film or tape containing indicia which is positioned intermediate an elongated light source and the mirror to display a scale image on the mirror, and the means generating the bar image includes a transverse bar which reflectively defines a bar image on the mirror intersecting the scale image. The generating means includes means for moving the tape strip to modify the scale image and means for moving the bar to displace the bar image on the mirror and modify the position of intersection between the bar and scale images.
Abstract translation: 一种用于显示准直图像的装置，包括具有焦点面的椭圆面镜和用于产生焦点表面中的镜的条形和刻度图像的装置。 产生刻度图像的装置包括细长条带的胶片或带状标记，该标记位于细长光源和反射镜之间，以在镜子上显示刻度图像，并且产生条形图像的装置包括横向条， 镜子上的条形图像与刻度图像相交。 生成装置包括用于移动带条以修改标尺图像的装置和用于移动条以移动反射镜上的条形图像的装置，并且修改条和标尺图像之间的交叉点的位置。
-
公开(公告)号：US3801838A
公开(公告)日：1974-04-02
申请号：US3801838D
申请日：1972-05-19
Applicant: SUNDSTRAND DATA CONTROL
Inventor： KISTLER W
Abstract: A piezoelectric pressure transducer particularly adapted for measuring fluid pressure up to and above ballistics levels of the order of 75,000 pounds per square inch with an accurate, linear response over a wide pressure range. The piezoelectric sensing element is housed in a cylindrical sleeve which is threaded into a wall of the chamber within which the pressure to be measured is developed. An end wall extending across the end of the sleeve is exposed to the pressure and deflects, compressing the piezoelectric element to generate an electric signal representing the pressure. A supporting wall for the end wall is located between the sensing element and the housing sleeve. Two flexure zones are formed in the end wall, one between the piezoelectric element and the supporting wall and the other between the wall and the sleeve. The supporting wall is connected with the end wall through a third flexure zone. The compliance of the supporting wall is less than the compliance of the piezoelectric element but greater than the compliance of the housing sleeve. Deformation of the housing sleeve, as by pressure on the mounting threads, is accommodated by the flexure areas and error creating stress on the piezoelectric element is minimized.
Abstract translation: 一种压电式压力传感器，特别适用于在宽的压力范围内具有高达75,000磅/平方英寸量级的流体压力，并具有准确的线性响应。 压电感测元件容纳在圆柱形套筒中，该圆柱形套筒拧入腔室的壁中，待测量的压力在该壁内形成。 延伸穿过套筒端部的端壁暴露于压力并偏转，压缩压电元件以产生表示压力的电信号。 用于端壁的支撑壁位于感测元件和壳体套筒之间。 在端壁中形成两个弯曲区域，一个位于压电元件和支撑壁之间，另一个位于壁与套筒之间。 支撑壁通过第三弯曲区域与端壁连接。 支撑壁的顺应性小于压电元件的顺应性，但大于壳体套筒的顺应性。 通过弯曲区域容纳壳体套筒的变形，如通过安装螺纹上的压力而使压电元件上产生应力的误差最小化。
-
公开(公告)号：US3678746A
公开(公告)日：1972-07-25
申请号：US3678746D
申请日：1970-06-10
Applicant: SUNDSTRAND DATA CONTROL
Inventor： COREY VICTOR B
CPC classification number: G01F1/203 , G01P5/005 , Y10T137/2202
Abstract: A method and apparatus for determining the velocity of a fluid flow stream. A fluid jet source is disposed opposite a pair of fluid pressure detectors so that the jet stream equally intersects both detectors when the velocity of the fluid flow stream is zero. Means are provided for relatively laterally displacing the jet with respect to the detectors, and for sensing the pressure difference at the detectors, in order to indicate the velocity of the moving fluid flow stream.
Abstract translation: 一种用于确定流体流动流速度的方法和装置。 流体喷射源与一对流体压力检测器相对设置，使得当流体流动流的速度为零时，喷射流与两个检测器相等。 提供了用于相对于检测器相对地横向移位射流的装置，并且用于感测检测器处的压力差，以便指示运动流体流动流的速度。
-
公开(公告)号：US3630169A
公开(公告)日：1971-12-28
申请号：US3630169D
申请日：1970-06-01
Applicant: SUNDSTRAND DATA CONTROL
Inventor： COREY VICTOR B
CPC classification number: B64D43/02
Abstract: A stall warning indicator having no moving parts is mounted on a leading edge of an aircraft wing, near the point of stagnation of airflow when a stall condition occurs. The indicator includes a transmitter emitting transmissions, as a continuous acoustic wave or a jet airstream, which are received by a pair of detectors connected to a differential sensor. When the stagnation point passes the axis of the transmissions, the differential sensor produces a signal to warn of an impending stall.
-
15.发明授权Ground proximity warning system utilizing radio and barometric altimeter combination 失效使用无线电和BAROMETRIC ALTIMETER组合的地面临近警告系统
公开(公告)号：US3715718A
公开(公告)日：1973-02-06
申请号：US3715718D
申请日：1970-08-11
Applicant: SUNDSTRAND DATA CONTROL
Inventor： ASTENGO R
CPC classification number: G01P3/62 , G01P1/103 , G01S13/10 , G05D1/0607
Abstract: A ground proximity warning system for an aircraft which produces a warning signal when the rate of descent of the aircraft exceeds a limiting value determined by the aircraft altitude. The rate of descent of the aircraft is calculated from a combination of measurements of the altitude of the aircraft above ground and the barometric altitude of the aircraft. A signal representing the rate of change of the altitude of the aircraft above ground is limited, to minimize false warnings as a result of surface irregularities. The barometric portion of the system is disabled during take-off run and the initial portion of the aircraft climb-out to avoid a false warning resulting from an increased barometric pressure condition during this maneuver. The limits on the aircraft altitude rate signal are modified in accordance with the flight mode of the aircraft, to reduce the sensitivity of the warning system during the final stage of a landing approach. The warning system provides an alarm to the pilot which is an audio tone modulated at a low frequency repetition rate. A soft warning is actuated when the sink rate of the aircraft exceeds a desired level for the altitude at which the aircraft is operating. If the aircraft is also below a limiting altitude, a hard warn signal is provided. The repetition rate of the warning signal, while in a soft warn condition, is a function of the difference between the altitude of the aircraft and the altitude at which the sink rate would be proper. A complementary filter with which the altitude rate signals are combined, includes an operational amplifier connected in an unloading amplifier configuration with a resistive circuit connecting one input signal with the amplifier and a capacitive circuit connecting the other input signal with the amplifier, the resistive and capacitive input circuits forming a low pass filter for the first signal and a high pass filter for the second signal.
-
Patent Agency Ranking
公开(公告)号：US3636321A
公开(公告)日：1972-01-18
申请号：US3636321D
申请日：1969-12-10
Applicant: SUNDSTRAND DATA CONTROL
Inventor： KIRSCHNER ROBERT K
CPC classification number: G06G7/28
Abstract: An analog position transducer connected to an aircraft flap generates a linear voltage representing flap position. Separate switching stages are responsive to different potential levels of the linear voltage to produce separate output waveforms which are summed by an operational amplifier for each reference program which is to be generated. The disclosed reference programs correlate desired angle of attack to flap position for an aircraft approach program and a climbout program.
-
公开(公告)号：US3878535A
公开(公告)日：1975-04-15
申请号：US26102172
申请日：1972-06-08
Applicant: SUNDSTRAND DATA CONTROL
Inventor： TWISS FRANK
CPC classification number: H03M1/645
Abstract: A circuit for converting analog signals angularly related to the position of a rotor of a synchro or resolver or the like into digital signals representing the rotor position utilizes a phase locked loop circuit with a voltage controlled oscillator from which is derived a phase signal shifted in phase with respect to the excitation signal in direct proportion to rotor position. A phase measuring circuit determines the number of cycles of the clock signal occurring during the time period corresponding to the phase difference between the phase signal and the excitation signal to produce a digital signal representative of the rotor position. The voltage controlled oscillator has a frequency which is variable in direct proportion with the frequency of the excitation signal to eliminate error in the phase measuring circuit due to frequency changes in the excitation signal.
Abstract translation: 用于将与同步或旋转变压器等的转子的位置成角度相关的模拟信号转换为表示转子位置的数字信号的电路利用具有压控振荡器的锁相环电路，从而导出相位偏移的相位信号 相对于与转子位置成正比的激励信号。 相位测量电路确定在与相位信号和激励信号之间的相位差相对应的时间段期间发生的时钟信号的周期数，以产生表示转子位置的数字信号。 压控振荡器的频率可以与激励信号的频率成正比地变化，以消除由于激励信号的频率变化引起的相位测量电路中的误差。
-
公开(公告)号：US3783374A
公开(公告)日：1974-01-01
申请号：US3783374D
申请日：1972-04-07
Applicant: SUNDSTRAND DATA CONTROL
IPC: G01P15/125 , G01R27/26 , G01R11/52
CPC classification number: G01R27/2605 , G01P15/125 , G01P2015/0828
Abstract: A circuit for detecting or sensing the ratio of or unbalance between two impedance elements, as the sections of a differential capacitor in a servoed instrument. A source of alternating current has two outputs of opposite phase, one connected in each of a pair of circuits with the two impedance elements. A diode in each of the circuits is poled so that both circuits conduct during the same half cycle. A load connected with both circuits sums the opposite phase currents and the difference between the currents represents the ratio of the impedance elements.
Abstract translation: 用于检测或感测两个阻抗元件之间的比例或不平衡的电路，作为伺服仪器中的差分电容器的部分。 交流电源具有相反相位的两个输出，一个连接在具有两个阻抗元件的一对电路中。 每个电路中的二极管被极化，使得两个电路在相同的半周期内导通。 与两个电路相连的负载将相反相电流相加，电流之差表示阻抗元件的比例。
-
公开(公告)号：US3702073A
公开(公告)日：1972-11-07
申请号：US3702073D
申请日：1969-02-28
Applicant: SUNDSTRAND DATA CONTROL
Inventor： JACOBS EARL D
CPC classification number: G01P15/132
Abstract: An accelerometer is provided for detecting acceleration which employs a flapper ring clamped at raised points between upper and lower portions of a magnet structure. The flapper is suspended by a bifilar hinge on the ring between two permanent magnets. Coils are mounted on opposite sides of the flapper, each encircling one of the permanent magnets and separated therefrom by an air gap. Each side of the flapper has a metallic coating thereby forming a capacitor with an inner face of the magnet structure on each side of the flapper. As the accelerometer is accelerated, the flapper is displaced relative to the magnet structure thus increasing the capacitance of one capacitor and decreasing the capacitance of the other capacitor. Electrical signals proportional to the change in the capacitances, and therefore proportional to the acceleration, are fed through a servo loop to the coil which set up a magnetic field which interacts with the magnetic fields of the permanent magnets to oppose the displacement of the flapper.
Abstract translation: 提供一种用于检测加速度的加速度计，该加速度计使用夹在磁体结构的上部和下部之间的凸起点处的挡板环。 挡板由两个永磁体之间的环上的双向铰链悬挂。 线圈安装在挡板的相对侧上，每个环绕永磁体中的一个并通过气隙与其分离。 挡板的每一侧具有金属涂层，从而在挡板的每一侧上形成具有磁体结构的内表面的电容器。 当加速度计加速时，挡板相对于磁体结构移位，从而增加一个电容器的电容并降低另一个电容器的电容。 与电容变化成比例因而与加速度成比例的电信号通过伺服回路馈送到线圈，该线圈建立了与永久磁铁的磁场相互作用以抵抗挡板的位移的磁场。
-
公开(公告)号：US3678374A
公开(公告)日：1972-07-18
申请号：US3678374D
申请日：1970-01-06
Applicant: SUNDSTRAND DATA CONTROL
Inventor： THOMPSON BURTON J
CPC classification number: G01R17/08 , G01P15/132 , G05D3/10
Abstract: A servoed transducer uses differential sensing capacitors connected to a detector circuit to generate an error signal proportional to movement of a pivoted seismic mass. The error signal is amplified by a servo amplifier with closed loop feedback in order to maintain for a fixed error signal a constant current through a torque coil which rebalances the seismic mass. The servo amplifier output circuit presents zero impedance to an external load.
Abstract translation: 伺服传感器使用连接到检测器电路的差分感测电容器来产生与枢转的地震块的运动成比例的误差信号。 误差信号由具有闭环反馈的伺服放大器放大，以便通过重新平衡地震质量的扭矩线圈维持恒定电流的固定误差信号。 伺服放大器输出电路对外部负载呈现零阻抗。
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.012 seconds)
