Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Toroidal fluxgate current transducer

A current transducer and transducer technology, applied in inductors, voltage/current isolation, magnetic field measurement using the principle of magnetic flux control, etc., can solve problems such as increasing manufacturing costs, achieve reliable and stable layout, simplify induction Measure the effect of unit assembly

Active Publication Date: 2013-05-01
莱姆电子(中国)有限公司
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The sensitivity of the fluxgate transducer also results in tighter manufacturing tolerances for the relative positions of the coils and components, which also results in increased manufacturing costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Toroidal fluxgate current transducer
  • Toroidal fluxgate current transducer
  • Toroidal fluxgate current transducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Referring to the accompanying drawings, first from Figures 1a to 1d Initially, a current transducer 2 according to an embodiment of the invention comprises a housing 4, a fluxgate sensing unit 6 mounted in the housing, a signal processing circuit 8, for example comprising a printed circuit board 7, which also Mounted in the housing and having electrical terminals 18 extending through the housing for connection to an external circuit for power supply and an output for the measurement signal. The transducer may comprise a central channel 16 through which a conductor or conductors 20, 20a, 20b carrying the current to be measured extend. The current to be measured will be called the primary current and the conductor will be called the primary conductor. The transducer also comprises an inner magnetic shield 12 and an outer magnetic shield 10 positioned radially inwardly and radially around the fluxgate sensing unit 6, respectively. The magnetic shields 10, 12 may advanta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Toroidal fluxgate current transducer comprising a ring shaped fluxgate sensing unit (6) comprising a ring-shaped support (40), a saturable magnetic core (38) mounted on the support (40), an excitation coil (44) wound around the support and saturable core and a magnetic shell (32) mounted around the excitation coil, ring-shaped support and saturable core. The support is ringed-shape and comprises terminals (50,48) fixed to the support, a first pair of said terminals connected to ends of the excitation coil, and a second pair of said terminals connected to ends of a secondary coil of the current transducer.

Description

technical field [0001] The present invention relates to toroidal fluxgate current transducers with secondary coils for closed loop applications. Background technique [0002] A fluxgate transducer has a saturable magnetic core surrounded by an excitation coil that applies an alternating magnetic field that alternately saturates the core. In the presence of an external magnetic field, a bias voltage is applied to the saturation of the saturable core such that the symmetry of the excitation signal is achieved. This asymmetry is related to the magnitude of the external magnetic field and is therefore used to read the magnitude of the external magnetic field. In a magnetometer, the excitation current is processed by an electronic circuit that feeds a secondary coil (also known as a compensating coil) wound around the fluxgate transducer or to a magnetic circuit coupled to the fluxgate transducer. Generate a feedback signal. The compensating current seeks to cancel the effect ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R15/18G01R33/04H01F38/30
CPCG01R33/04G01R15/185H01F27/2895H01F38/30G01R1/04G01R33/0017
Inventor C·古德尔B·马科兹B·理查德G·格里
Owner 莱姆电子(中国)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com