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131 条记录 (耗时 0.018 秒)

    Analog switching system with fan-out
    24.
    发明授权
    Analog switching system with fan-out 失效
    具有扇出功能的模拟开关系统

    公开(公告)号：US4057711A

    公开(公告)日：1977-11-08

    申请号：US667960

    申请日：1976-03-17

    申请人： Abhaya Asthana ,  George Hannauer

    发明人： Abhaya Asthana ,  George Hannauer

    IPC分类号： G06J1/00

    CPC分类号： G06J1/00

    摘要： An analog switching system having fan-out for switching a plurality of inputs coupled to analog signal sources with respect to a plurality of outputs coupled to analog signal destinations. A three stage switch matrix includes input, middle and output switch blocks with each block having a plurality of analog switch means and latching means. Any one input terminal of a switch block may be connected to any one or more of the output terminals of that block. A matrix controller coupled to each of the switch blocks addresses each switch block and actuates at least one of the latching means to provide a connection assignment for at least one of the analog switching means.

    摘要翻译： 一种模拟切换系统，具有扇出，用于相对于耦合到模拟信号目的地的多个输出切换耦合到模拟信号源的多个输入。 三级开关矩阵包括输入，中间和输出开关块，每个块具有多个模拟开关装置和锁存装置。 开关块的任何一个输入端子可以连接到该块的任何一个或多个输出端子。 耦合到每个开关块的矩阵控制器解决每个开关块并致动锁存装置中的至少一个以提供至少一个模拟开关装置的连接分配。

    Rf/dc generator for quadrupole mass analyzer
    25.
    发明授权
    Rf/dc generator for quadrupole mass analyzer 失效
    用于QUADRUPOLE MASS ANALYZER的RF / DC发生器

    公开(公告)号：US3735287A

    公开(公告)日：1973-05-22

    申请号：US3735287D

    申请日：1971-05-03

    申请人： ELECTRONIC ASSOCIATES

    发明人： LOWE R

    IPC分类号： H01J49/42 ,  H03L5/00 ,  H03B3/02

    CPC分类号： H01J49/421 ,  H01J49/022 ,  H03L5/00

    摘要： The specification discloses an improved radio frequency-direct current (RF/DC) generating circuit for use with a quadrupole mass analyzer. A free-running oscillator is employed to generate the radio frequency signal, the oscillator having diode means in the feedback circuit for limiting the dynamic range over which the oscillator must operate. The output of the oscillator is connected through a coil to the rods of the quadrupole mass analyzer which, in conjunction with the coil function as a tuned circuit, thereby the magnitude of the radio frequency applied to the rods is obtained by Q multiplication. A detector circuit is connected to the output of the coil for producing a feedback signal which is compared with a ramp voltage for driving the output of the oscillator as a function of the control ramp input. The detector output is also fed back to the input of two similar circuits for generating equal magnitude with opposite polarity direct current potentials which magnitude varies as a function of the output of the detector and thereby under control of the input control ramp. Additional diodes are provided in the detector circuit to enable the detector to operate near zero volts.

    摘要翻译： 本说明书公开了一种与四极质量分析仪一起使用的改进型射频直流（RF / DC）发生电路。 采用自由振荡器来产生射频信号，振荡器在反馈电路中具有二极管装置，用于限制振荡器必须在其上工作的动态范围。 振荡器的输出通过线圈连接到四极质量分析器的杆，其结合线圈作为调谐电路，从而通过Q乘法获得施加到杆的射频的幅度。 检测器电路连接到线圈的输出端，用于产生反馈信号，该反馈信号与用于驱动振荡器的输出的斜坡电压作为控制斜坡输入的函数进行比较。 检测器输出也被反馈到两个相似电路的输入端，用于产生具有相反极性直流电位的相等大小，其幅度随检测器的输出而变化，从而在输入控制斜坡的控制下变化。 在检测器电路中提供额外的二极管，以使检测器能够在零电压附近工作。

    Analog summer/integrator mode control circuit having digital/analog switch inputs
    26.
    发明授权
    Analog summer/integrator mode control circuit having digital/analog switch inputs 失效
    具有数字/模拟开关输入的模拟式夏季/整合器模式控制电路

    公开(公告)号：US3717776A

    公开(公告)日：1973-02-20

    申请号：US3717776D

    申请日：1971-09-23

    申请人： ELECTRONIC ASSOCIATES

    发明人： SICKEL G ,  TEMPEL G

    IPC分类号： G06G7/06 ,  G06G7/12

    CPC分类号： G06G7/06

    摘要： AN ANALOG INTEGRATOR IS DISCLOSED IN WHICH MULTIPLE INPUT RESISTORS ARE PROVIDED THERETO. THE GAIN FROM SOME OF THE INPUT RESISTORS TO THE OUTPUT OF THE INTEGRATOR IS HIGHER THAN THE GAIN FROM THE OTHER INPUT RESISTORS. THE LOWER GAIN PRODUCING RESISTORS ARE CONNECTED TO THE INPUT OF THE INTEGRATOR THROUGH A SINGLE FIELD-EFFECT TRANSISTOR DIGITAL/ANALOG SWITCHING DEVICE WHILE EACH OF THE HIGHER GAIN PROVIDING INPUT RESISTORS HAVE SEPARATE FIELD-EFFECT TRANSISTOR DIGITAL/ANALOG SWITCHING DEVICES CONNECTING THEM TO THE INPUT. LOGIC CIRCUITRY IS PROVIDED TO INTERCONNECT THE FIELD-EFFECT TRANSISTOR DIGITAL/ANALOG SWITCHING DEVICES TO OPERATE AS A SINGLE SWITCH SO THAT THE INTEGRATOR MAY BE SWITCHED THEREBY FROM AN OPERATE MODE (RESISTORS CONNECTED) TO A HOLD MODE (RESISTORS DISCONNECTED). DETAILS OF THE DIGITAL/ANALOG SWITCH ARE ALSO DISCLOSED IN WHICH AN INVERTED TRANSISTOR IS EMPLOYED TO CONNECT EACH RESISTOR TO GROUND WHEN IT IS NOT CONNECTED TO THE INPUT OF THE INTEGRATOR.

    Stabilized direct coupled amplifier having improved frequency response and minimum intermodulation distortion
    27.
    发明授权
    Stabilized direct coupled amplifier having improved frequency response and minimum intermodulation distortion 失效
    稳定的直接耦合放大器具有改善的频率响应和最小的互调失真

    公开(公告)号：US3678402A

    公开(公告)日：1972-07-18

    申请号：US3678402D

    申请日：1968-03-13

    申请人： ELECTRONIC ASSOCIATES

    发明人： TEMPEL GEORGE F

    IPC分类号： H03F1/08 ,  H03F1/30 ,  H03F1/52 ,  H03F3/45 ,  H03F1/02

    CPC分类号： H03F1/303 ,  H03F1/083 ,  H03F1/52 ,  H03F3/45085

    摘要： Improved frequency response, lower distortion factors and rapid overload recovery are obtained in a stabilized operational amplifier by eliminating the blocking capacitor at the input to the circuit from the summing junction. This is accomplished by having an insulated gate field effect transistor connected between the summing junction of the amplifier and the first input stage; or, by utilizing insulated gate field effect transistor circuitry as the first amplifier stage.

    摘要翻译： 在稳定的运算放大器中，通过从求和点的电路输入消除阻塞电容，可以获得改善的频率响应，较低的失真因子和快速的过载恢复。 这是通过在绝缘栅场效应晶体管连接在放大器和第一输入级的求和结点之间实现的; 或者利用绝缘栅场效应晶体管电路作为第一放大级。

    Digital plotter in which plotting speed is optimized in terms of a curve-fitting technique
    28.
    发明授权
    Digital plotter in which plotting speed is optimized in terms of a curve-fitting technique 失效
    数字绘图仪在绘制速度优于曲线拟合技术的条件下

    公开(公告)号：US3609319A

    公开(公告)日：1971-09-28

    申请号：US3609319D

    申请日：1968-12-03

    申请人： ELECTRONIC ASSOCIATES

    发明人： CLIFFORD WILLIAM JR ,  DEMKO JOHN G ,  KINDLE WILLIAM K

    IPC分类号： G06K15/22

    CPC分类号： G06K15/22

    摘要： Plotting of digital data is accomplished by optimizing plotting speed in terms of a curve-fitting technique. Segments of a curve whose x and y end points are specified, are defined in terms of a set of parametric equations represented by third order polynomials with distance as the independent variable. The curvature of these segments is then developed. Optimum plotting speed is then determined considering the requisite degree of curvature and the physical limitations of the plotter such as arm and pen mass and motor torque. This optimum plotting speed determines the rate of generation of the parametric equations in x and y and drives the system through a hybrid servosystem for the independent variable distance. Thus, the plotter is driven to the desired data points with a geometry independent of velocity.

    Solid sample inlet system for a mass spectrometer
    30.
    发明授权
    Solid sample inlet system for a mass spectrometer 失效
    用于质谱仪的固体样品入口系统

    公开(公告)号：US3578969A

    公开(公告)日：1971-05-18

    申请号：US3578969D

    申请日：1968-11-25

    申请人： ELECTRONIC ASSOCIATES

    发明人： PROSKAUER WALTER

    IPC分类号： H01J49/04 ,  H01J39/34

    CPC分类号： H01J49/0459 ,  H01J49/24

    摘要： A system is disclosed for injecting solid material into an evacuated chamber without disturbing the pressure therein. Two rods are slidably mounted for extension into the chamber via sealed apertures at opposite ends thereof. A larger diameter rod may extend through the chamber and out the opposite ends. A smaller diameter rod carrying the solid material is interfit within the larger diameter rod. The larger rod is withdrawn as the smaller one is inserted.