Temperature perception can allow robots to acquire rich information regarding their surroundings to improve the accuracy of both object manipulation and object recognition. However, existing robotic temperature perception systems mainly depend on thermoresistive effect, suffering from singular functionality and high energy consumption. Here, we demonstrate a ferroelectric Bi0.5Na0.5TiO3-based dual-mode temperature sensor for robotic temperature perception. The dual-mode temperature sensor can operate in a passive mode to perceive temperature variations by generating pyroelectric signals, and work in an active mode to detect static temperatures by producing pyro-photoelectric signals. Equipped with the dual-mode temperature sensor, a robot hand can perceive multi-dimensional temperature information and assess the thermal conductivity of materials, allowing identification of different materials in real-time with a high accuracy of 97.2 %. By combining passive and active temperature perception, the proposed dual-mode temperature sensor therefore holds significant potential for future robotic perception and manipulation.

中文翻译：

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基于铁电 Bi0.5Na0.5TiO3 材料的双模温度传感器，用于机器人触觉感知


温度感知可以让机器人获取有关周围环境的丰富信息，从而提高物体操纵和物体识别的准确性。然而，现有的机器人温度感知系统主要依靠热阻效应，功能单一且能耗较高。在这里，我们展示了一种基于 Bi0.5Na0.5TiO3 的铁电双模温度传感器，用于机器人温度感知。双模温度传感器可以工作在被动模式下，通过产生热释电信号来感知温度变化，也可以工作在主动模式下，通过产生热释光电信号来检测静态温度。机械手搭载双模温度传感器，可感知多维温度信息并评估材料导热系数，实时识别不同材料，准确率高达97.2%。因此，通过结合被动和主动温度感知，所提出的双模式温度传感器对于未来的机器人感知和操纵具有巨大的潜力。