The smart flexible devices that can implement both tactile and touchless sensing in real-time have attracted abundant interest due to the high demand for human-machine interaction (HMI), internet of things (IoT) and virtual reality (VR) system. However, obtaining the sensor that can precisely monitor signals via contact/non-contact modes without overlapping while in a facile and cost-effective methodology is still a challenge. Herein, we introduce a flexible dual-mode capacitive sensor for pressure (contact) and magnetic field (non-contact) detection based on magnetic tilted micropillar array (MTMPA) via a facile and tunable methodology. The MTMPA sandwiched in AgNW/PDMS electrodes can response to the external pressure and magnetic field with bidirectional deflection, allowing the sensor to precisely distinguish different stimuli in real-time without overlapping. With the optimal structure, the sensor exhibits high performance of magnetic response with sensitivity of −0.69 T^-1, detection limit of 25 mT and excellent recoverability. The sensor also exhibits high pressure sensitivity of 0.301 kPa⁻¹ (0–2 kPa) with the ultra-low detection limit of 1.2 Pa with excellent repeatability and mechanical robustness. As a proof of concept, practical wearable tactile applications (e.g. pulse-sensing, voice recognition, finger touching, pressure mapping and dynamic tracking) and touchless demonstrations such as magnetic field identification and trajectory tracking have been presented. The sensitive response of the sensor to external magnetic fields also enables us to customize the non-contact Braille recognition system through arranging specific magnet patterns, where the characters such as ‘a’, ‘b’, ‘c’, and ‘d’ have been well distinguished without direct contact. The results experimentally prove the profound significance of the methodology for potential uses towards health monitoring, body motion feedback, and human-machine interface, etc.

由于对人机交互（HMI），物联网（IoT）和虚拟现实（VR）系统的需求很高，能够实时实现触觉和非接触感应的智能柔性设备引起了广泛的兴趣。然而，以一种既方便又经济的方法获得一种能够通过接触/非接触模式精确监视信号而又不会重叠的传感器仍然是一个挑战。在本文中，我们通过一种灵活且可调的方法，介绍了一种基于磁倾斜微柱阵列（MTMPA）的用于压力（接触）和磁场（非接触）检测的柔性双模电容传感器。夹在AgNW / PDMS电极中的MTMPA可以通过双向偏转来响应外部压力和磁场，允许传感器实时准确地区分不同的刺激而不会重叠。凭借最佳的结构，该传感器具有出色的磁响应性能，灵敏度为-0.69 T^-1，检测极限为25 mT，可恢复性极佳。该传感器还具有0.301 kPa ^-1的高压灵敏度（0–2 kPa），具有1.2 Pa的超低检测极限，具有出色的重复性和机械强度。作为概念的证明，已经提出了实际的可穿戴触觉应用（例如，脉冲感应，语音识别，手指触摸，压力映射和动态跟踪）以及诸如磁场识别和轨迹跟踪的非接触式演示。传感器对外部磁场的敏感响应还使我们能够通过布置特定的磁体图案来定制非接触式盲文识别系统，其中诸如“ a”，“ b”，“ c”和“ d”的字符具有在没有直接联系的情况下表现出色。实验结果证明了该方法对于健康监测，人体运动反馈和人机界面等潜在用途的深远意义。