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Updated: Jun 23, 2025

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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A Proposal for a Solar Position Sensor System with Multifiber Optical Cable.

Fernanda Oliveira1, Gustavo Cruz2, Maria Barbosa3

  • 1Departament of Electrical Energy Systems, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia.

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|June 19, 2024
PubMed
Summary
This summary is machine-generated.

A new solar position sensor uses low-cost electronics and fiber optics for precise sun tracking. It achieves high resolution, making it ideal for concentrator photovoltaic systems needing accuracy under 0.6 degrees.

Keywords:
concentrator photovoltaicelectronic instrumentationoptical fiber sensorsolar tracker

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Area of Science:

  • Optoelectronics
  • Solar Energy Engineering

Background:

  • Solar position sensors are crucial for closed-loop solar tracking systems.
  • Accurate tracking, especially for concentrator photovoltaic (CPV) systems (error < ±0.6°), is essential for efficiency.
  • Existing sensors may lack cost-effectiveness or simplicity.

Purpose of the Study:

  • To characterize a novel solar position sensor configuration.
  • To evaluate its performance in terms of range, sensitivity, and resolution.
  • To assess its suitability for high-precision solar tracking applications.

Main Methods:

  • A proposed sensor configuration with low-cost embedded electronics and multifiber optical cable was developed.
  • Characterization involved measurements of range, sensitivity, and resolution.
  • Testing was conducted in both controlled indoor and outdoor environments.

Main Results:

  • The sensor demonstrated a resolution of 2.6×10-3 degrees.
  • High resolution was achieved within a field of view of ±0.1°.
  • Performance was particularly notable under external (outdoor) conditions.

Conclusions:

  • The proposed solar position sensor offers high precision suitable for CPV systems.
  • Its simple design and assembly, along with strong performance, make it a promising alternative to existing sensors.
  • This sensor is a viable candidate for integration into advanced solar tracking systems.