Microwave-actuated robot sensor for non-contact solution detection

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Sensors and Actuators A-physical Pub Date : 2024-12-01 Epub Date: 2024-10-05 DOI:10.1016/j.sna.2024.115953

Jin-Qiang Ma , Jun-Ge Liang , Jia-Kang Wu , Yi-Ran Song , En-Kang Wu , Tian Qiang , Xiao-Feng Gu , Cong Wang , Lei Wang

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Abstract

The realization of specific target detection based on micro-robots has garnered broad interest. It generally requires separate systems for actuation and sensing, and this paper presents for the first time a robot sensor scheme based on non-contact microwave control and detection for solution sensing. The key components of the robot are a shape memory alloy (SMA) coil spring and a monopole antenna, supported by a structure fabricated through 3D printing. First, electromagnetic waves at 2.45 GHz generated by the microwave generator are emitted to the monopole antenna. The electromagnetic energy is then converted into Joule heating, which drive the robot sensor toward the sensing position. Next, the monopole antenna acts as the sensing tag, while the horn antenna as the receiver, detecting methanol and acetone solutions with the sensitivity of 0.208 dB/% and 0.187 dB/%, respectively. The detection is mediator-free and in-time, with a range of 5 %-25 % for both methanol and acetone. The robot sensor can traverse up to 10 cm. By increasing the microwave generator’s output power, the robot's range of motion can be extended, offering a potential idea for non-contact robot sensor drive and detection.

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用于非接触式溶液检测的微波驱动机器人传感器

基于微型机器人实现特定目标检测已引起广泛关注。本文首次提出了一种基于非接触式微波控制和检测的机器人传感器方案，用于溶液检测。机器人的关键部件是形状记忆合金（SMA）螺旋弹簧和单极天线，由三维打印结构支撑。首先，微波发生器产生的 2.45 GHz 电磁波被发射到单极天线。然后，电磁能被转化为焦耳热，从而推动机器人传感器向感应位置移动。接下来，单极天线充当传感标签，喇叭天线充当接收器，检测甲醇和丙酮溶液，灵敏度分别为 0.208 dB/% 和 0.187 dB/%。检测不需要介质，而且及时，甲醇和丙酮的检测范围为 5 %-25 %。机器人传感器的移动距离可达 10 厘米。通过增加微波发生器的输出功率，机器人的运动范围可以扩大，这为非接触式机器人传感器的驱动和检测提供了一个潜在的思路。

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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...