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公开(公告)号：US4575025A
公开(公告)日：1986-03-11
申请号：US603690
申请日：1984-04-25
申请人： John W. Sadvary , Tim C. Fung
发明人： John W. Sadvary , Tim C. Fung
CPC分类号： F42B10/14
摘要： What is proposed by the invention is a fin deployment mechanism for missiles in which a fin member can be extended from or retracted to the contour of a missile by means of a rotary to linear motion transmission system employing a rotatable screw shaft having respective adjacent portions embodying a left hand and a right hand thread for supporting respective ones of a pair of screw nuts, each of which are provided with a cam slot for receiving a cam follower mounted on the fin member, or fin supporting member, so that when the screw shaft rotates the screw nuts are caused to move therealong in mutually opposite directions and via the cooperation between the cam slots and the cam followers the fin is caused to rotate through a given angle. In each of the extreme positions of the fin member a locking engagement is effected for retaining such positions in a locked condition.
摘要翻译： 本发明提出的是一种用于导弹的翅片展开机构，其中翅片构件可以通过旋转到直线运动传动系统延伸或缩回到导弹的轮廓，该旋转到直线运动传动系统采用具有相应的相邻部分的可旋转螺杆轴 用于支撑一对螺母中的相应的一个螺母的左手和右手螺纹，每个螺母设置有用于接收安装在翅片构件上的凸轮从动件的凸轮槽或翅片支撑构件，使得当螺杆轴 旋转螺母被引起沿着相互相反的方向移动，并且通过凸轮槽和凸轮从动件之间的配合，使得翅片旋转一个给定的角度。 在翅片构件的每个极限位置中，进行锁定接合以将这些位置保持在锁定状态。
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公开(公告)号：US4559507A
公开(公告)日：1985-12-17
申请号：US528574
申请日：1983-09-01
IPC分类号： H03L5/00
CPC分类号： H03L5/00
摘要： An AC signal source having constant frequency-amplitude product is also easily realizable in hybrid microcircuit form. A square wave oscillator output is rectified and clamped to a feedback control voltage. The resulting controlled amplitude square wave is low-pass filtered to produce a sinusoidal output signal which is typically amplified and applied to a variable-impedance load. The sinusoidal signal is also applied to a similar but simulated load of fixed impedance value and the current flowing through the simulated load is summed with a temperature-compensated reference current producing an error current which is then integrated to produce the feedback control voltage which controls the amplitude of the sinusoidal signal so as to maintain a constant frequency amplitude product.
摘要翻译： 具有恒定频率振幅积的AC信号源也可以以混合微电路形式容易地实现。 方波振荡器输出被整流并钳位到反馈控制电压。 所得到的受控幅度方波被低通滤波以产生正弦输出信号，该正弦输出信号通常被放大并施加到可变阻抗负载。 正弦信号也被应用于类似但是模拟的固定阻抗值的负载，并且流过模拟负载的电流与温度补偿参考电流相加，产生误差电流，然后将其集成以产生控制 正弦信号的振幅，以保持恒定的频率振幅积。
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公开(公告)号：US4289028A
公开(公告)日：1981-09-15
申请号：US107679
申请日：1979-12-27
申请人： Irwin Wallman
发明人： Irwin Wallman
IPC分类号： G01F23/26
CPC分类号： G01F23/266
摘要： A capacitance type fuel quantity gauge for a fuel tank which includes a probe capacitor in the fuel tank having a capacitance which varies in accordance with the fuel level and connected by one conductor to the output of a Lo-Z oscillator, two oppositely polled diodes connected together and to the capacitor, the positive diodes connected by another conductor to a signal conditioner and the negative diode connected to the one conductor by an inductance, the one conductor connected to the oscillator output and to the signal conditioner by a capacitor and inductance, respectively, so that the one conductor carries both the Lo-Z signal and the DC negative signal.
摘要翻译： 一种用于燃料箱的电容型燃料计量计，其包括在燃料箱中的探针电容器，其具有根据燃料水平而变化的电容并且通过一个导体连接到Lo-Z振荡器的输出，两个相对地被轮询的二极管连接 一起连接到电容器，由另一个导体连接到信号调节器的正二极管和负极二极管分别通过电感连接到一个导体，一个导体分别通过电容和电感连接到振荡器输出和信号调节器 ，使得一个导体承载Lo-Z信号和DC负信号。
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公开(公告)号：US4122708A
公开(公告)日：1978-10-31
申请号：US672481
申请日：1976-03-31
申请人： Lawrence C. Maier
发明人： Lawrence C. Maier
CPC分类号： G01L3/106 , G01D5/2417
摘要： A capacitive proximity sensor for use in hostile environments comprises a ceramic substrate, and two conductive regions formed on the substrate and having opposed edges defining a narrow gap therebetween. The gap configuration is such as to maximize the fringing of electric flux lines outwards from the substrate when one conductive region is energized from a high frequency source. The other conductive region is connected to remotely located signal conditioner operative to maintain said other region at virtual ground and thereby eliminate signal error due to cabling capacitances. On approach of a flux-shielding body to the sensor, the sensor output current to the signal conditioner will decrease as a function of the proximity of the body. The sensor can be used as a simple proximity sensor or incorporated in a shaft torque measurement system operative down to zero r.p.m.
摘要翻译： 用于恶劣环境的电容式接近传感器包括陶瓷衬底和形成在衬底上的两个导电区域，并且具有限定两者之间窄间隙的相对边缘。 间隙配置使得当一个导电区域从高频源通电时，最大化从基板向外的电流线的边缘。 另一个导电区域连接到远程位置的信号调节器，用于将所述另一区域维持在虚拟地面，从而消除由布线电容引起的信号误差。 在通量屏蔽体接近传感器时，传感器输出到信号调节器的电流将随身体的接近而减小。 该传感器可以用作简单的接近传感器，也可以结合在轴向扭矩测量系统中，其运行速度为零r.p.m。
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公开(公告)号：US4044353A
公开(公告)日：1977-08-23
申请号：US712168
申请日：1976-08-06
申请人： Ralph Levy
发明人： Ralph Levy
CPC分类号： G01S13/36 , G01S2007/4065
摘要： A method and apparatus for measuring liquid level. A generated broad-band swept-frequency C.W. microwave signal (2-4 GHz) is upverted to a high frequency band signal (34-36 GHz), which is transmitted towards, and reflected from, a liquid surface. The reflected signal is downverted to the frequency band of the original generated signal, and then the phase difference between the original and downverted signals is measured by a microwave phase discriminator and a quantizer, which generates video pulses proportional to the total phase shift across the swept C.W. band. During an adjacent sweep in the same direction, the original signal is compared with a signal transmitted through a calibration cable equivalent to a known free-space path length. The unknown signal path to and from the liquid surface, can then be calculated by comparison of the video pulse train outputs during the CALIBRATE and OPERATE modes of operation, either by the ratio of the number of pulses, or the average time between pulses during each sweep.Alternately, the mode of operation can be switched several hundred times during a single sweep across the bandwidth, and the unknown signal path corresponding to a particular liquid level can be calculated by comparison of the spacing during adjacent CALIBRATE and OPERATE modes to give several hundred measurements at different frequencies. Deviate measurements can then be eliminated, and the remaining measurements can be averaged to give a highly accurate true average measurement by known methods.
摘要翻译： 一种用于测量液位的方法和装置。 所产生的宽频扫频CW.微波信号（2-4GHz）被升级到向液体表面传输和反射的高频带信号（34-36GHz）。 反射信号被降频到原始产生的信号的频带，然后通过微波相位鉴别器和量化器来测量原始信号和下变频信号之间的相位差，该量化器产生与扫描的总相移成比例的视频脉冲 CW带。 在相同方向的相邻扫描期间，将原始信号与通过等同于已知自由空间路径长度的校准电缆传输的信号进行比较。 然后可以通过在CALIBRATE和OPERATE操作模式期间比较视频脉冲串输出，或者通过脉冲数的比率或每个脉冲之间的脉冲之间的平均时间来计算到液面的未知信号路径 扫。
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公开(公告)号：US3634764A
公开(公告)日：1972-01-11
申请号：US3634764D
申请日：1968-04-25
发明人： SARGENT RAYMOND W
CPC分类号： G01D13/26
摘要： A flat scale indicating device for use with servo units having feedback loops, having an indicator arm pivotally mounted to a sector gear, the latter being in meshing engagement with a rotary pinion for transmitting rotary motion of the pinion to a straight line translatory motion at the pointer end of the indicating arm. The indicator arm further functions as a potentiometer wiper and an electrical connection is provided between the arm and a suitable amplifier bridge circuit.
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公开(公告)号：US3587305A
公开(公告)日：1971-06-28
申请号：US3587305D
申请日：1969-05-14
IPC分类号： G01L3/10
CPC分类号： G01L3/109
摘要： IN A PHASE DISPLACEMENT TORQUE MEASURING SYSTEM UTILIZING A PAIR OF EXCITER WHEELS MOUNTED IN SPACE RELATIONSHIP ON SHAFT AND HAVING A PAIR OF TRANSDUCERS MOUNTED ADJACENT EACH WHEEL FOR GENERATING ALTERNATING SIGNALS HAVING A PHASE DISPLACEMENT INDICATIVE OF THE TORSIONAL DEFLECTION OF THE SHAFT. COMPENSATION FOR SHAFT MISALIGNMENT IS ACHIEVED BY ARRANGING THE TRANSDUCERS FOR EACH EXCITER WHEEL 180* APART SUCH THAT ANY MISALIGNMENT IN THE SHAFT PROVIDES ELECTRICAL PHASE SHIFTS OF EQUAL AND OPPOSITE MAGNITUDE IN THE ALIGNED TRANSDUCERS FOR THE TWO EXCITER WHEELS.
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公开(公告)号：US3566221A
公开(公告)日：1971-02-23
申请号：US3566221D
申请日：1968-10-24
CPC分类号： G01D5/2412
摘要： A linear variable capacitance transducer to monitor the axial position of an object by varying the capacitance of the transducer corresponding to the position of the object. When fed an AC signal, the position of the object being monitored corresponds to the proportional AC signal emitted therefrom.
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79.发明授权Attitude error correction fluid gauging system employing radiation detectors and error storage techniques 失效使用辐射检测器和错误存储技术的态度误差校正流体测量系统
公开(公告)号：US3523186A
公开(公告)日：1970-08-04
申请号：US3523186D
申请日：1967-10-18
发明人： COHN IRVING H , DENARDO FRANK
IPC分类号： G01F23/288 , G01N21/26 , G01N23/12
CPC分类号： G01F23/288
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80.发明授权Electrical measuring apparatus including a bridge circuit and a meter having a rotor and three pole stator 失效电气测量装置，包括电路和具有转子和三极定子的仪表
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