Design and Development of a Temperature and Pressure Transmitter Using a Laser-Induced Graphene Sensor

IF 2.2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Alan Cuenca Sánchez;Fernando Pantoja-Suárez;Melvin Chilig;Johan Mena
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Abstract

The design and development of a temperature and pressure transmitter using a laser-induced graphene (LIG) sensor represents a significant advance in precision measurement technology. LIG, characterized by its unique porous structure and tailored flaw engineering, exhibits exceptional electrical and thermal conductivity, high mechanical strength, and flexibility, making it ideal for highly sensitive sensing applications. In this study, a sensor was directly patterned with LIG on a flexible substrate to enable real-time monitoring of temperature and pressure changes. Temperature is measured through LIG's intrinsic resistance variation, while pressure is sensed via its enhanced piezoresistive properties arising from its engineered porosity and defect structure. A signal conditioning and processing circuit was implemented for calibration and data visualization, featuring a modular design that supports long-distance data transmission via a standard 4–20 mA current loop. Moreover, the LIG fabrication process is inherently simple, cost-effective, and environmentally friendly. The single-step laser-induced patterning method eliminates the need for high temperatures, chemical solvents, and complex processing, thereby reducing energy consumption, production costs, and environmental impact. This approach positions LIG-based sensors as a promising low-cost and sustainable alternative to traditional sensor technologies. Experimental results demonstrate high accuracy, fast response times, and low power consumption, underscoring the potential of LIG technology in next-generation industrial and biomedical sensing applications.
使用激光诱导石墨烯传感器的温度和压力变送器的设计与开发
使用激光诱导石墨烯(LIG)传感器的温度和压力变送器的设计和开发代表了精密测量技术的重大进步。LIG的特点是其独特的多孔结构和定制的缺陷工程,具有卓越的导电性和导热性,高机械强度和灵活性,使其成为高灵敏度传感应用的理想选择。在这项研究中,一个传感器直接与LIG图案在柔性衬底上,能够实时监测温度和压力的变化。通过LIG的固有电阻变化来测量温度,而通过其工程孔隙度和缺陷结构产生的增强压阻特性来感知压力。信号调理和处理电路用于校准和数据可视化,采用模块化设计,通过标准的4 - 20ma电流环路支持长距离数据传输。此外,LIG制造过程本身简单,具有成本效益和环境友好性。单步激光诱导图片化方法消除了对高温、化学溶剂和复杂加工的需要,从而降低了能源消耗、生产成本和对环境的影响。这种方法将基于激光的传感器定位为传统传感器技术的一种有前途的低成本和可持续的替代方案。实验结果表明,LIG技术精度高、响应时间快、功耗低,在下一代工业和生物医学传感应用中具有很大的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Sensors Letters
IEEE Sensors Letters Engineering-Electrical and Electronic Engineering
CiteScore
3.50
自引率
7.10%
发文量
194
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