Rogowski coil sensing head suitable for Rogowski coil current sensor

A technology of current sensor and Rogowski coil, which is applied in the direction of instruments, measuring electrical variables, measuring devices, etc., can solve the problems of poor anti-interference ability, few turns, small output voltage, etc., and achieve the effect of high reliability and high sensitivity

Inactive Publication Date: 2014-03-12
BEIHANG UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of existing Rogowski coils with few turns, small output voltage and poor anti-interference ability, the present invention designs a Rogowski coil sensor head suitable for Rogowski coil current sensors

Method used

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  • Rogowski coil sensing head suitable for Rogowski coil current sensor
  • Rogowski coil sensing head suitable for Rogowski coil current sensor
  • Rogowski coil sensing head suitable for Rogowski coil current sensor

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] see figure 2 , Figure 2A As shown, the present invention is a Rogowski coil sensing head suitable for a Rogowski coil current sensor. The Rogowski coil sensing head includes a PCB base 1, a wrapping coil 8, a first collar coil 2, and a second collar coil 3 , the third collar coil 4, the fourth collar coil 5, the fifth collar coil 6 and the sixth collar coil 7; wherein, the first collar coil 2, the second collar coil 3, the third collar coil 4. The structures of the fourth collar coil 5 , the fifth collar coil 6 and the sixth collar coil 7 are the same. The winding coil (8) is connected in series with the first collar coil (2), the second collar coil (3), the third collar coil (4), the fourth collar coil (5), the fifth collar coil (6 ) and the bobbin center hole of the sixth collar coil (7).

[0028] In the present invention, the collar coil refer...

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Abstract

The invention discloses a Rogowski coil sensing head suitable for a Rogowski coil current sensor. The Rogowski coil sensing head is characterized in that a mounting mode that six axial loop coils and one rewinding coil are arranged on the same PCB (printed circuit board) base, and the rewinding coil is serially connected with the six axial loop coils is adopted, so larger turns per coil can be obtained in a limited area, the induced electromotive force is obviously increased, and the antijamming capability is increased. The space distribution of the six axial ring coils is a distribution taking a Rogowski coil central hole as a circle center.

Description

technical field [0001] The present invention relates to a current sensor, more particularly, to a Rogowski coil sensing head used as a Rogowski coil current sensor. Background technique [0002] Rogowski Coil, also known as air-core transformer and magnetometer, is widely used in the measurement of large currents. A Rogowski coil is a coil that is evenly wound on a non-magnetic skeleton and is wound around a conductor to measure the current flowing through the conductor. The Rogowski coil current sensor is composed of two parts: the Rogowski coil sensing head and the subsequent signal processing circuit. The sensor head is the signal induction link of the measuring element, and establishes a coupling relationship with the measured current by capturing the electromagnetic field in the space. [0003] When processing the Rogowski coil sensor head, it is required to "wrap around" a circle, that is, to wrap around the coil along any closed surface, and then sparsely wrap back ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/00
Inventor 武建文王贺飞蒋原
Owner BEIHANG UNIV
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