The outstanding properties of graphene have initiated myriads of research and development; yet, its economic impact is hampered by the difficulties encountered in production and practical application. Recently discovered laser-induced graphene is generated by a simple printing process on flexible and lightweight polyimide films. Exploiting the electrical features and mechanical pliability of LIG on polyimide, we developed wearable resistive bending sensors that pave the way for many cost-effective measurement systems. The versatile sensors we describe can be utilized in a wide range of configurations, including measurement of force, deflection, and curvature. The deflection induced by different forces and speeds is effectively sensed through a resistance measurement, exploiting the piezoresistance of the printed graphene electrodes. The LIG sensors possess an outstanding range for strain measurements reaching >10% A double-sided electrode concept was developed by printing the same electrodes on both sides of the film and employing difference measurements. This provided a large bidirectional bending response combined with temperature compensation. Versatility in geometry and a simple fabrication process enable the detection of a wide range of flow speeds, forces, and deflections. The sensor response can be easily tuned by geometrical parameters of the bending sensors and the LIG electrodes. As a wearable device, LIG bending sensors were used for tracking body movements. For underwater operation, PDMS-coated LIG bending sensors were integrated with ultra-low power aquatic tags and utilized in underwater animal speed monitoring applications, and a recording of the surface current velocity on a coral reef in the Red Sea.

石墨烯的优异性能引发了无数的研究和开发。然而，其生产和实际应用中遇到的困难阻碍了它的经济影响。最近发现的激光诱导的石墨烯是通过在柔性，轻质的聚酰亚胺薄膜上进行简单的印刷过程生成的。利用LIG在聚酰亚胺上的电气特性和机械柔韧性，我们开发了可穿戴的电阻式弯曲传感器，为许多经济高效的测量系统铺平了道路。我们描述的多功能传感器可用于多种配置，包括力，挠度和曲率的测量。通过利用印刷的石墨烯电极的压阻，通过电阻测量可以有效地感测由不同的力和速度引起的挠曲。LIG传感器具有超过10％的应变测量范围，通过在薄膜的两面上印刷相同的电极并采用差值测量技术，开发出了双面电极概念。这提供了较大的双向弯曲响应以及温度补偿。几何形状的多功能性和简单的制造工艺使得能够检测各种流速，力和挠度。可以通过弯曲传感器和LIG电极的几何参数轻松调整传感器响应。作为可穿戴设备，LIG弯曲传感器用于跟踪人体运动。对于水下操作，将PDMS涂层的LIG弯曲传感器与超低功耗水生标签集成在一起，并用于水下动物速度监测应用中，