Microwave dual heater for independent heating of liquid samples

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2025-03-27 DOI:10.1016/j.sna.2025.116497

Maede Chavoshi , Matko Martinic , Yan Zheng , Guy A.E. Vandenbosch , Bart Nauwelaers , Dominique Schreurs , Tomislav Markovic

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引用次数: 0

Abstract

This work presents a novel microwave heater pair designed for the independent and simultaneous heating of two liquid samples in microfluidic channels. The device is based on two resonators operating at distinct frequencies, enabling scalable heating within a single-feedline configuration. Experimental results demonstrate the system’s ability to achieve target temperatures between 30 °C and 60 °C with minimal temperature overshoot of below 4 %. The heater’s performance is evaluated in two modes; in individual mode, the device selectively heats one sample while maintaining a lower temperature in the other, whereas, in simultaneous mode, the two resonators work in tandem to heat both samples. In individual heating mode, heating rates of 25.5 °C/s and 17.5 °C/s were achieved for the first and the second heater, respectively. Similarly, the simultaneous mode obtained heating rates of 10.6 °C/s and 7.6 °C/s. This work establishes an efficient platform for selective microwave heating, with potential chemical and biomedical applications.

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...