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Hybrid Structure Multichannel All-Fiber Current Sensor.

Junzhen Jiang1, Hao Zhang2, Youwu He3

  • 1Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou 350007, China. jzjiang@fjnu.edu.cn.

Sensors (Basel, Switzerland)
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Summary
This summary is machine-generated.

We developed a hybrid-structure multi-channel all-fiber current sensor. This innovative fiber optic sensor system enables simultaneous current detection at multiple points without interference between channels.

Keywords:
current sensorsfiber opticshybrid structuremulti-channeltime division multiplexing

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Area of Science:

  • Fiber optics
  • Optical sensing
  • Electrical engineering

Background:

  • Traditional current sensors face limitations in multi-point simultaneous measurement.
  • All-fiber sensors offer advantages in electromagnetic immunity and remote sensing.
  • Developing a versatile and scalable fiber optic current sensing system is crucial.

Purpose of the Study:

  • To experimentally develop a hybrid-structure multi-channel all-fiber current sensor.
  • To enable simultaneous current measurement at different locations using a single system.
  • To investigate the performance and independence of individual sensor channels.

Main Methods:

  • Utilized ordinary silica fiber and a fiber loop architecture.
  • Implemented a hybrid structure combining parallel and serial configurations.
  • Employed time division multiplexing principles for channel management.

Main Results:

  • Demonstrated a good linear response across all sensor channels.
  • Successfully performed a three-channel experiment detecting distinct current positions.
  • Confirmed that each channel operates independently without mutual interference.

Conclusions:

  • The developed hybrid-structure multi-channel all-fiber current sensor is effective for simultaneous multi-point current monitoring.
  • Individual channels provide independent current detection, requiring separate calibration.
  • The system's design ensures channel independence, enhancing its practical applicability.