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Updated: Nov 19, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
Four-probe sensing of temperature during Joule heating of silicon
Asger Kjærgård Pedersen1, Daena Madhi2, Daniil Mirosnikov3
1DTU Energy--Department of Energy Conversion and Storage, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
Abstract:
We present a four-probe setup for measuring temperature of Joule-heated silicon in two independent ways from the same voltage measurement: a method using the thermal dependence of resistivity and a method based on the measured sheet power density. The two methods are compared to optical temperature measurements made by fitting a gray-body model onto data from a commercial spectrometer. The two four-probe temperature measurements are conducted from 890 K to 1540 K, and they converge at temperatures above 1400 K indicating a high degree of self-consistency.
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