M3-3.2 - Ultra-Low-Power Wireless Temperature Measurement for High-Temperature Rotating Equipment

Event

23. ITG/GMA-Fachtagung Sensoren und Messsysteme 2026
2026-06-09 - 2026-06-10
Nürnberg

Band

Vorträge

Chapter

Sensornetzwerke

Author(s)

L. B. Hörmann, B. Uhl, V. Putz - Linz Center of Mechatronics GmbH, Linz (Austria), G. Minelgaite, J. Barrenetxea-Arando, N. Montes - Fundación Inatec (OTUA), Legutio (Spain)

Pages

477 - 484

DOI

10.5162/sensoren2026/M3-3.2

ISBN

978-3-910600-11-9

Price

free

Abstract

This paper presents a wireless, energy-autonomous temperature measurement system for a rotary aluminium melting furnace. The system is designed for temperature acquisition at locations where wired sensors are difficult to install due to rotation, thermal load, and limited accessibility. It consists of photovoltaic-powered wireless sensor nodes, BLE-based communication, and a Linux-based edge gateway for data processing and integration into downstream systems. The sensor nodes use thermocouple measurement electronics and supercapacitor-based energy storage. Stainless-steel fixtures and thermal shielding enable mounting on the rotating furnace while limiting the thermal load on the electronics. Industrial measurements demonstrate long-term temperature acquisition at the furnace core, outer surface, and exhaust gas path. The results demonstrate the feasibility of cable-free temperature monitoring on rotating high-temperature equipment and identify energy availability as a key factor for reliable long-term operation. The acquired temperature data provides a basis for process monitoring, forecasting, and digital twin modelling of the melting process.