Prohlížení dle autora "Grim V."

Zobrazují se záznamy 21-26 z 26

    • Rogowski Coil with Ferromagnetic Powder Core 

      Autor: Grim V.; Ripka P.
      (IEEE, 2022)
      We have used nanocrystalline powder to build a core for Rogowski coils suitable for application in energy meters. The sensor linearity error is 0.32% of full scale (FS) of its 20 A range, which is acceptable for this ...

    • Rotational Eddy Current Speed Sensor 

      Autor: Mirzaei M.; Ripka P.; Vyhnánek J.; Chirtsov A.; Grim V.
      (IEEE, 2019)
      A novel eddy current speed sensor is developed to measure the rotational speed of conductive objects. The sensor consists of one excitation coil and two pick-up coils around a rotating cylinder or rod. The sensor does not ...

    • A Simplified 2D Equivalent Model for Magnetic Wire Array 

      Autor: Mirzaei M.; Ripka P.; Grim V.
      (IEEE, 2022)
      Demagnetization factor and corresponding apparent permeability for multiwire arrays using the 3-D finite element method (FEM) are calculated in this article. The effect of distance between magnetic wires on the demagnetization ...

    • Temperature stability of the transformer position transducer for pneumatic cylinder 

      Autor: Mirzaei M.; Ripka P.; Chirtsov A.; Grim V.
      (Elsevier, 2020)
      This paper presents the analysis and design of a transformer position sensor for pneumatic cylinder considering temperature stability. Two solenoid coils as excitation coil and pick up coil around cylinder are used for ...

    • Thickness Evaluation of Hollow Nonmagnetic Cylinders Utilizing a Motional Eddy Current 

      Autor: Mirzaei M.; Ripka P.; Grim V.; Jelínek L.; Svatoš J.
      (Elsevier, 2022)
      This paper presents a way to calculate the shell thickness of nonmagnetic hollow cylinders for nondestructive applications. Aluminum cylinders with a solid structure and with a hollow structure are considered. The motion ...

    • Three-Phase Busbar Current Transducer 

      Autor: Chirtsov A.; Ripka P.; Grim V.
      (IEEE, 2019)
      A true three-phase 1000 A busbar current transducer is based on six micro-fluxgate sensors. Instead of using three independent single-phase current transducers, we use the full information from each sensor. Two TI DRV425 ...