Inductive temperature measurement: A new sensor improvement for industrial applications
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Updated: Dec 22, 2025

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
Published on: April 30, 2018
Ricardo Spyrides Boabaid Pimentel Gonçalves1, Jens Haueisen1, Jefferson Luiz Brum Marques2
1Institut für Biomedizinische Technik und Informatik, Technische Universität Ilmenau, Max-Planck-Ring 14, 98693 Ilmenau, Germany.
Abstract:
A remote temperature sensing technique was developed by measuring exponential decay current pulses in a Helmholtz coil. After an initial calibration to extract a mathematical function relating the time constant (τ) to the temperature of the object sensed, the temperature of other similar objects can be estimated with less power, less strict positioning of the object, and more sensitivity than previous techniques, even inside a water-based fluid.
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