Drive control circuit for dental treatment instruments
    2.
    发明授权
    Drive control circuit for dental treatment instruments 失效
    牙科治疗仪器驱动控制电路

    公开(公告)号:US4383167A

    公开(公告)日:1983-05-10

    申请号:US138705

    申请日:1980-04-09

    摘要: A circuit arrangement is provided for controlling the drive of dental treatment instruments by means of driving devices associated therewith and the operating data of which are adapted to be fed to a separate forward/backward counter when the particular treatment instrument is selected for use. A starter switch is connected to the forward/backward counter and is operable, when actuated, to vary the particular stored count of the counter step-wise for the purpose of varying the operating data and for transmission to a control element, for the control thereof, which is associated with the particular treatment instrument. Upon actuation of the starter switch in order to vary the stored count of the forward/backward counter, the counting speed of the counter is increased with increasing actuation time of the starter switch by reason of the fact that the counter receives a number of counter pulses which increase per unit time.

    摘要翻译: 提供了一种电路装置,用于通过与其相关联的驱动装置来控制牙科治疗仪器的驱动,并且当选择使用特定治疗仪器时,其操作数据适于被馈送到单独的前进/后退计数器。 启动器开关连接到前向/后向计数器,并且当被致动时可操作以逐步改变计数器的特定存储计数,以便改变操作数据和传输到控制元件,以用于其控制 ,与特定治疗仪有关。 在起动开关的启动时,为了改变向前/向后计数器的存储计数,计数器的计数速度随着启动器开关的致动时间的增加而增加,这是由于计数器接收到多个计数器脉冲 每单位时间增加。

    Signal generator
    3.
    发明授权
    Signal generator 失效
    信号发生器

    公开(公告)号:US4283637A

    公开(公告)日:1981-08-11

    申请号:US99644

    申请日:1979-12-03

    摘要: A control circuit is adapted to control the movement of a pintle relative to the die head of extrusion apparatus. A command signal is supplied to a signal generator, which produces a first output signal in the form of a series of continuous voltage triangles, and a second output signal in the form of unit pulses. An impedance matrix contains a plurality of potentiometers which may be remotely connected to a summing amplifier. The potentiometers are arranged in a numerical order. Odd-numbered potentiometers are supplied with the triangular output signal from the signal generator. Even-numbered potentiometers are supplied with the signal generator triangular output signal, but which has been phase-shifted by half the width of one triangle. The pulse output from the signal generator is supplied to a decoder, which successively connects pairs of numerically-adjacent potentiometers with the summing amplifier during overlapping time intervals. During the cycle of operation, only a pair of numerically-adjacent potentiometers will be connected to the summing amplifier at any point in time. The output of the summing amplifier is a control signal, which may be used to control the movement of a pintle relative to a die head.

    摘要翻译: 控制电路适于控制枢轴相对于挤压设备的模头的移动。 命令信号被提供给信号发生器,该信号发生器产生一系列连续电压三角形形式的第一输出信号和单位脉冲形式的第二输出信号。 阻抗矩阵包含多个可以远程连接到加法放大器的电位计。 电位器按数字顺序排列。 奇数电位器由信号发生器提供三角输出信号。 偶数电位器带有信号发生器三角输出信号,但已被相移一个三角形宽度的一半。 从信号发生器输出的脉冲被提供给解码器,该解码器在重叠的时间间隔期间连续地将数字相邻的电位器与加法放大器相连。 在操作周期中,只有一对数字相邻的电位器将在任何时间点连接到求和放大器。 加法放大器的输出是控制信号,其可用于控制枢轴相对于模头的移动。

    Control circuit adapted to control movement of a pintle relative to a
die head
    4.
    发明授权
    Control circuit adapted to control movement of a pintle relative to a die head 失效
    控制电路适于控制枢轴相对于模头的运动

    公开(公告)号:US4217635A

    公开(公告)日:1980-08-12

    申请号:US000507

    申请日:1979-01-02

    摘要: A control circuit is adapted to control the movement of a pintle relative to the die head of extrusion apparatus. A command signal is supplied to a signal generator, which produces a first output signal in the form of a series of continuous voltage triangles, and a second output signal in the form of unit pulses. An impedance matrix contains a plurality of potentiometers which may be remotely connected to a summing amplifier. The potentiometers are arranged in a numerical order. Odd-numbered potentiometers are supplied with the triangular output signal from the signal generator. Even-numbered potentiometers are supplied with the signal generator triangular output signal, but which has been phase-shifted by half the width of one triangle. The pulse output from the signal generator is supplied to a decoder, which successively connects pairs of numerically-adjacent potentiometers with the summing amplifier during overlapping time intervals. During the cycle of operation, only a pair of numerically-adjacent potentiometers will be connected to the summing amplifier at any point in time. The output of the summing amplifier is a control signal, which may be used to control the movement of a pintle relative to a die head.

    摘要翻译: 控制电路适于控制枢轴相对于挤压设备的模头的移动。 命令信号被提供给信号发生器,该信号发生器产生一系列连续电压三角形形式的第一输出信号和单位脉冲形式的第二输出信号。 阻抗矩阵包含多个可以远程连接到加法放大器的电位计。 电位器按数字顺序排列。 奇数电位器由信号发生器提供三角输出信号。 偶数电位器带有信号发生器三角输出信号,但已被相移一个三角形宽度的一半。 从信号发生器输出的脉冲被提供给解码器,该解码器在重叠的时间间隔期间连续地将数字相邻的电位器与加法放大器相连。 在操作周期中,只有一对数字相邻的电位器将在任何时间点连接到求和放大器。 加法放大器的输出是控制信号,其可用于控制枢轴相对于模头的移动。

    Process and apparatus for low pressure casting
    5.
    发明授权
    Process and apparatus for low pressure casting 失效
    低压铸造工艺及设备

    公开(公告)号:US4213494A

    公开(公告)日:1980-07-22

    申请号:US915209

    申请日:1978-06-13

    申请人: Henri Carbonnel

    发明人: Henri Carbonnel

    IPC分类号: B22D18/08 G05B19/07 B22D18/04

    CPC分类号: B22D18/08 G05B19/075

    摘要: In the low pressure casting of a metal in a mould supplied from below by an electromagnetic pump, the durations of the various stages of the moulding cycle are determined in dependence on the temperature of the mould, the temperature of the metal in the mould and the temperature of the metal in the furnace to obtain optimum casting conditions despite variations in these temperatures.

    摘要翻译: 在通过电磁泵从下方供给的模具中的金属的低压铸造中,成型周期的各个阶段的持续时间根据模具的温度,模具中的金属的温度和 即使这些温度有变化,炉子中的金属的温度也能获得最佳的铸造条件。

    Heat control apparatus
    6.
    发明授权
    Heat control apparatus 失效
    热控设备

    公开(公告)号:US4184067A

    公开(公告)日:1980-01-15

    申请号:US792501

    申请日:1977-05-02

    申请人: Steven B. Cress

    发明人: Steven B. Cress

    摘要: An automatic heat control apparatus for use with an electric heating element in a kiln or the like comprises a first power controller having a plurality of on and off intervals. The first controller supplies electric current to the kiln heating element during its on intervals, and further includes means for adjusting the duration of the on intervals relative to the off intervals. A constant speed electric motor is mechanically coupled to the first power controller for gradually increasing the duration of the on intervals and decreasing the duration of the off intervals; such control ensures that the temperature inside the kiln increases very gradually to lessen the risk of breaking the ceramic material being fired. Furthermore, the average speed of the motor may be controlled by means of a second power controller, similar to the first controller, having a plurality of on and off intervals which intermittently energize the motor for rotation thereof. By adjusting the duration of the on interval relative to the off intervals of the second controller, the average speed of rotation of the motor may be selectively varied to control the rate of increase in the duration of the on interval in the first controller.

    摘要翻译: 在窑炉等中与电加热元件一起使用的自动热控制装置包括具有多个打开和关闭间隔的第一功率控制器。 第一控制器在其一段间隔期间向窑加热元件提供电流,并且还包括用于相对于关闭间隔调整上述间隔的持续时间的装置。 将恒速电动机机械耦合到第一功率控制器,用于逐渐增加接通间隔的持续时间并减小关闭间隔的持续时间; 这样的控制确保窑内的温度非常缓慢地增加,以减少破坏被烧制的陶瓷材料的风险。 此外,电动机的平均速度可以通过与第一控制器类似的第二功率控制器来控制,该第二功率控制器具有间歇地给电动机进行旋转的多个开和关间隔。 通过调整相对于第二控制器的断开间隔的接通间隔的持续时间,可以选择性地改变电机的平均转速,以控制第一控制器中的接通间隔的持续时间的增加速率。

    Programmable anthropomorphic articulation
    7.
    发明授权
    Programmable anthropomorphic articulation 失效
    可编程拟人关节

    公开(公告)号:US4000564A

    公开(公告)日:1977-01-04

    申请号:US647317

    申请日:1976-01-07

    IPC分类号: G05B19/07 G09B23/32

    CPC分类号: G09B23/32 G05B19/075

    摘要: An anthropomorphic programmable joint joins two limb portions. The joint may simulate the knee joint and the portions may correspond to the upper and lower leg portions about the knee. A magnetic particle brake is attached to the upper portion with a shaft that carries the pinion gear of a bevel gear set located at the joint. The ring gear of the bevel gear set is fixed to the lower limb portion so that rotation of the lower limb portion about the joint causes the shaft to rotate the magnetic brake fixed to the upper portion. The brake resistance to this rotation, and therefore the resistance of the joint to rotation, may be programmed in correspondence to electrical current applied to the brake.

    摘要翻译: 拟人化可编程接头连接两个肢体部分。 关节可以模拟膝关节,并且这些部分可以对应于围绕膝盖的上部和下部腿部。 磁性颗粒制动器通过承载位于接头处的锥齿轮组的小齿轮的轴连接到上部。 伞齿轮组的齿圈固定在下肢部分上,使得下肢部分绕关节的旋转使轴旋转固定在上部的磁性制动器。 可以根据施加到制动器的电流对该旋转的制动阻力以及因此关节旋转的阻力进行编程。

    Device for setting an electric command variable
    8.
    发明授权
    Device for setting an electric command variable 失效
    用于设置电子命令变量的设备

    公开(公告)号:US3995266A

    公开(公告)日:1976-11-30

    申请号:US577875

    申请日:1975-05-15

    摘要: A device for setting an electric command variable comprising parallel circuit branches for the coarse and fine adjustment of the variable is disclosed. In particular, the fine and coarse adjustment branches each include a digital bi-directional counter and a digital-analog converter. Upon exceeding the limits of the conversion range of the digital-to-analog converter of the fine branch, the counter therein is adjusted to a value which corresponds to a middle setting of its associated converter. To prevent the latter adjustment from causing a variation of the analog command variable, a corresponding correction of the counter in the coarse branch is then made. The present device has particular application in the setting of the energizing currents in magnetic lenses of an electron microscope.

    摘要翻译: 公开了一种用于设置电子指令变量的装置,包括用于粗调和微调整变量的并行电路分支。 特别地,精细和粗调分支各自包括数字双向计数器和数模转换器。 当超过精细分支的数模转换器的转换范围的限制时,其中的计数器被调整为对应于其相关联的转换器的中间设置的值。 为了防止后一种调整引起模拟命令变量的变化,然后对粗分支中的计数器进行相应的校正。 本装置在电子显微镜的磁性透镜的激励电流的设定中具有特别的应用。

    Etic coils of corpusular beam apparatus control and regulating arrangement for the current fed to electromagn
    9.
    发明授权
    Etic coils of corpusular beam apparatus control and regulating arrangement for the current fed to electromagn 失效
    电磁波束装置的电磁线圈控制和调节电流对电磁场的控制

    公开(公告)号:US3757120A

    公开(公告)日:1973-09-04

    申请号:US3757120D

    申请日:1972-09-15

    申请人: SIEMENS AG

    摘要: An improved setting device for providing accurately reproducible, incrementally variable control voltages to the input of a control and regulating circuit for adjusting electromagnetic coil current in charged-particle beam apparatus such as electron microscopes. The setting device includes a digital counter, preferably a forward-backward counter, connected to the input of the control circuit through a digital-to-analog converter. A pulse source, preferably pushbutton-controlled, provides stepping pulses, either one-by-one, or in a series of pulses of variable repetition rate and/or preselectable number, for adjusting the output voltage of the setting device to achieve, for example, desired values of magnification or focus as indicated by a numeric display device connected to the output of the pulse source and/or the output of the digital counter.

    Process control method and apparatus for regulating temperature
    10.
    发明授权
    Process control method and apparatus for regulating temperature 失效
    用于调节温度的过程控制方法和装置

    公开(公告)号:US3692986A

    公开(公告)日:1972-09-19

    申请号:US3692986D

    申请日:1971-01-05

    申请人: COURTAULDS LTD

    IPC分类号: G05B19/07 G05D23/19 G05D23/00

    CPC分类号: G05B19/075 G05D23/1902

    摘要: A process control method comprises the steps of generating a first electrical signal representing a measured value of a process variable, generating a second electrical signal representing a desired value of said process variable, generating a third electrical signal, which changes at a prechosen rate corresponding to a desired rate of change of said measured value of said process variable, comparing said second electrical signal with said third electrical signal to generate a fourth electrical signal, applying said fourth electrical signal to cause said third electrical signal to tend towards equality with said second electrical signal, and comparing said first electrical signal with said third electrical signal to produce a process control signal therefrom. Apparatus for carrying out the method is also described as well as the application of the method to the control of the temperature of dyebath liquor.

    摘要翻译: 一种过程控制方法包括以下步骤:产生表示过程变量的测量值的第一电信号,产生表示所述过程变量的期望值的第二电信号,产生第三电信号,该第三电信号以对应于 所述过程变量的所述测量值的期望变化率,将所述第二电信号与所述第三电信号进行比较以产生第四电信号,施加所述第四电信号以使所述第三电信号趋于与所述第二电信号相等 信号,并且将所述第一电信号与所述第三电信号进行比较以从其产生过程控制信号。 还描述了用于实施该方法的装置以及该方法用于控制染浴的温度的应用。