中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.018 seconds)

    Position measuring transformer
    1.
    发明授权
    Position measuring transformer 失效
    位置测量变压器

    公开(公告)号：US3898635A

    公开(公告)日：1975-08-05

    申请号：US42683773

    申请日：1973-12-20

    Applicant: IBM

    Inventor： KULTERMAN ROBERT WAYNE

    IPC: G01D5/245 ,  G01B7/00 ,  G01D5/20 ,  G01D5/22 ,  H01R33/04

    CPC classification number: G01D5/2073 ,  G01D5/225

    Abstract: An improved radio frequency transformer apparatus for detecting positional changes between a moving and a fixed element is disclosed. The system operates in the high frequency range (on the order of 5 megahertz) and utilizes a centered tapped pickup coil in conjunction with an elongated primary serpentine coil for detecting the null points in a signal which is inductively coupled to the pickup coil as it passes along the elongated serpentine transmitter coil or primary. The use of the null point as the sensing or trigger point simplifies the circuitry required and reduces the cost involved in building the position detecting transformer. The use of the high frequency signals reduces the size and complexity of circuits and circuit elements and enables the entire primary oscillator and detector amplifiers to be embodied in integrated circuit chips for positioning directly on circuit board apparatus. In addition, this design allows a fairly wide variation in spacing tolerance between the transmitter and the detector coils without inducing positional error indications between the moving and fixed elements. This further reduces the cost by lowering the precision required in constructing the device.

    Abstract translation: 公开了一种用于检测移动和固定元件之间的位置变化的改进的射频变压器装置。 该系统在高频范围（大约5兆赫）工作，并且利用中心抽头拾取线圈与细长的初级蛇形线圈结合，用于检测在通过时感应耦合到拾取线圈的信号中的零点 沿着细长的蛇形发射器线圈或主要。 使用零点作为感测或触发点简化了所需的电路，并降低了构建位置检测变压器所涉及的成本。 高频信号的使用减小了电路和电路元件的尺寸和复杂性，并且使整个主振荡器和检波器放大器能够实现在用于直接定位在电路板装置上的集成电路芯片中。 此外，该设计允许在发射器和检测器线圈之间的间隔公差的相当宽的变化，而不会引起移动和固定元件之间的位置误差指示。 这通过降低构造装置所需的精度来进一步降低成本。

    2.
    发明专利
    未知

    公开(公告)号：DE2448950A1

    公开(公告)日：1975-06-26

    申请号：DE2448950

    申请日：1974-10-15

    Applicant: IBM

    Inventor： KULTERMAN ROBERT WAYNE

    IPC: G01D5/245 ,  G01B7/00 ,  G01D5/20 ,  G01D5/22

    Abstract: An improved radio frequency transformer apparatus for detecting positional changes between a moving and a fixed element is disclosed. The system operates in the high frequency range (on the order of 5 megahertz) and utilizes a centered tapped pickup coil in conjunction with an elongated primary serpentine coil for detecting the null points in a signal which is inductively coupled to the pickup coil as it passes along the elongated serpentine transmitter coil or primary. The use of the null point as the sensing or trigger point simplifies the circuitry required and reduces the cost involved in building the position detecting transformer. The use of the high frequency signals reduces the size and complexity of circuits and circuit elements and enables the entire primary oscillator and detector amplifiers to be embodied in integrated circuit chips for positioning directly on circuit board apparatus. In addition, this design allows a fairly wide variation in spacing tolerance between the transmitter and the detector coils without inducing positional error indications between the moving and fixed elements. This further reduces the cost by lowering the precision required in constructing the device.

    STEPPER MOTOR DRIVE APPARATUS AND PRINTER EMBODYING THE SAME
    3.
    发明专利
    STEPPER MOTOR DRIVE APPARATUS AND PRINTER EMBODYING THE SAME 未知

    公开(公告)号：DE3173577D1

    公开(公告)日：1986-03-06

    申请号：DE3173577

    申请日：1981-10-20

    Applicant: IBM

    Inventor： KULTERMAN ROBERT WAYNE ,  RAKES JAMES MITCHELL ,  SWEAT ROBERT HERRINGTON

    IPC: H02P8/12 ,  H02P5/68 ,  H02P8/40 ,  H02P8/00 ,  H02P7/68 ,  B41J23/00

    Abstract: In apparatus which uses a plurality of stepper motors for the actuation of various moving members therein, e.g., impact printer apparatus, an improvement is provided wherein at least one pair of stepper motors (14, 15) which operate during mutually exclusive periods share common driver means (13) which are switchable to be connected to the active stepper motor and disconnected from the dormant one. When thus connected to the active stepper motor, the driver means operate in the conventional manner to couple the windings of the active stepper motor to the particular current supply associated with that active motor in a predetermined sequence so that each winding of the active motor is energized during portions of the sequence and deenergized during other portions. The apparatus further includes switching means (16) for selectively connecting and disconnecting the drive means to the first and second stepper motors in accordance with the requirements of the apparatus driven by said stepper motors.

Patent Agency Ranking