Flexible Intelligent Sensing Patches for Augmented Tactile and Thermal Perception
Flexible bimodal pressure-temperature sensing patches are critical for advancing tactile and thermal perception in healthcare and robotics. Existing integrated systems suffer from signal crosstalk and insufficient stability under mechanical deformation. This work presents an interference-free intelligent sensing patch comprising a laser-patterned pressure sensor and a negative temperature coefficient (NTC) thermistor. The pressure sensor achieves a detection range of 8 Pa to 220 kPa with a 50 ms response time, while the thermistor delivers a temperature resolution of 0.01 °C across 10–50 °C. The patch maintains stable performance under 150° bending and 10% tensile strain. An integrated real-time processing platform enables continuous wrist pulse and epidermis temperature monitoring. When integrated with a neural network for soft robotic grippers, the patch achieves 94.09% recognition accuracy across ten distinct objects. These results demonstrate the patch's potential for precise, non-invasive health monitoring and intelligent robotic manipulation, addressing key challenges in interference suppression and system-level integration for multimodal tactile sensing.