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市场调查报告书
商品编码
1797624
触觉感测器的中国市场(2025年)Tactile Sensor Research Report, 2025 |
融合多感知技术路线,满足多维度需求
在实际应用中,触觉感测器需满足多维资讯感知的需求,包括压力、温度、湿度、材质辨别等。例如,当机器人抓取物体时,需要运用 "力、温、质" 多模态感知,区分物体是滑的(力的变化)、热的(温度的)还是易碎的(硬度的)。同样,医疗復健义肢的皮肤需要同时感知压力(预防褥疮)、温度(预防烫伤)和湿度(监测皮肤状态)。
然而,单一技术路线(例如电阻膜、电容)难以涵盖所有需求,需要整合才能达到 "1+1>2" 的效果。融合多感知技术路线是触觉感测器实现多模态感知的核心手段。透过融合不同原理、材料和结构的技术,感测器可以同时感知力、温度、湿度、纹理、硬度等多种物理量。
塔山科技的TS-V视觉-触觉融合技术平台融合了双眼视觉触觉感知和电容式触觉感知,实现了0.01N的三维力测量精度、1mm的分辨率,并能够区分30多种材料,同时还具备近距离感知能力,空气感知距离可达2cm。
触觉感测器为机器人带来类人感知
触觉感测器透过模拟皮肤对压力、摩擦力、应变等外界刺激的感知,为机器人提供类人感知能力,感知物体的硬度、纹理、温度、湿度等物理特性,并将这些物理讯号转换为电讯号,最终实现与外界环境的精准互动。
机器人中的触觉感测器围绕 "物理互动核心区域" 安装,其主要作用是保障安全并提高操作精度。目前,机器人领域的触觉感测器主要应用于机械手的指尖和灵巧手指,部分应用也延伸至指腹和手掌。未来,预计将应用于机器人的手臂、下肢、躯干等部位,覆盖全身。
本报告对中国触觉感测器市场进行了研究和分析,涵盖了触觉感测器的基本概念、技术原理、技术发展趋势、应用场景、国内外供应商及产品等资讯。
ResearchInChina has released the "Tactile Sensor Research Report, 2025", which conducts research, analysis and summary on the basic concepts, technical principles, advantages and disadvantages of different technical routes, technical development trends, applications of tactile sensors (including robotic dexterous hands, electronic skin, automobiles, industrial automation, smart homes, etc.), domestic suppliers and their products, and foreign suppliers and their products.
Tactile sensors are devices that can perceive and measure tactile information such as surface normal force (pressure), tangential force, temperature, hardness, and texture. According to the sensing principle, they can be divided into piezoresistive sensors, capacitive sensors, piezoelectric sensors, visual-tactile sensors, magnetoelectric (Hall) sensors, and photoelectric sensors.
Various Technical Routes of Tactile Sensors Flourish
The six types of tactile sensors based on different principles - piezoresistive, capacitive, piezoelectric, visual-tactile, magnetoelectric (Hall), and photoelectric - each have their own advantages, attracting many scholars and enterprises to conduct research. At present, various technical routes of tactile sensors are flourishing and have not converged.
Among them, the principle of the piezoresistive tactile sensor is that the force changes the resistance value of the conductive material, and the change in external pressure or contact state is reflected by detecting the change in resistance. Due to the low manufacturing cost of piezoresistive sensors, they are currently the most widely used. Typical suppliers include Hanwei Electronics - Leanstar, Moxian Technology, PhlexSense, and Fulai New Materials.
Capacitive tactile sensors obtain force information based on capacitance changes caused by external stimuli. Capacitive tactile sensors have higher spatial resolution and sensitivity than resistive tactile sensors, are easy to integrate in arrays, and can measure three-dimensional forces. In addition, capacitive tactile sensors are the only tactile sensors that can measure proximity perception, with many researchers at home and abroad. Representative suppliers include Hanwei Electronics - Leanstar, Tashan Technology, Sycsense, New Degree Technology, TacSense Technology, PPS, and Baumer.
Principle of piezoelectric tactile sensors: The force applied to the device deforms the piezoelectric material, causing charge polarization inside the material and opposite charges on the surface of the material. This effect can be used to detect external stimuli (such as pressure, vibration, etc.). Piezoelectric tactile sensors have a wide range and high signal linearity, but the acquisition circuit is slightly complex. At present, foreign suppliers are dominant, such as Tekscan, JDI, and Novasentis.
Vision-based tactile sensors can be analogous to miniature "contact imaging systems" and achieve high spatial resolution and a wide dynamic response range using optical principles. For example, the GelSight vision-based tactile sensor is based on the principle of photometric stereo. It identifies the morphological changes caused by the compression of the soft elastomer on the textured surface, amplifies the micro deformation and converts it into a clear image, that is, it infers the force change by photographing the deformation of the image. Domestic suppliers include Tashan Technology, Daimon Robotics, ViTai Robotics, etc.
Magnetoelectric (Hall-effect) tactile sensors utilize the Hall effect to convert input force into induced electromotive force for output. They have a fast response speed, reaching the millisecond level. The principle of photoelectric tactile sensors is that external pressure changes the optical properties of the medium, the light propagation path, and the intensity of transmitted light, converting changes in optical signals into electrical signals to realize the perception of tactile information such as pressure. Photoelectric tactile sensors can achieve multimodal perception, including the detection of various tactile features such as pressure, hardness, vibration, and sliding.
Integration of multi-perception technology routes to meet multi-dimensional needs
In practical applications, tactile sensors need to meet the needs of multi-dimensional information perception such as pressure, temperature, humidity, and material identification. For example, when a robot grabs an object, it needs to use "force-temperature-texture" multimodal perception to identify whether the object is slipping (force change), whether it is at a high temperature (temperature), and whether it is fragile (hardness); the skin of medical rehabilitation prosthetics needs to simultaneously perceive pressure (to avoid pressure ulcers), temperature (to prevent scalds), humidity (to monitor skin conditions), etc.
However, a single technical route (such as resistive, capacitive) is difficult to cover all needs, so it is necessary to achieve the effect of "1 + 1 > 2" through integration. The integration of multi-sensing technology routes is the core means to realize multimodal perception of tactile sensors. By integrating technologies with different principles, materials or structures, the sensor can simultaneously perceive multiple physical quantities such as force, temperature, humidity, texture, and hardness.
Tashan Technology's TS-V visual-tactile fusion technology platform integrates binocular vision-based tactile and capacitive tactile perception, achieving a three-dimensional force measurement accuracy of 0.01N, a resolution of 1mm, and can identify more than 30 different materials. It also has proximity perception, with an air perception distance of 2cm.
Tactile sensors enable robots to have human-like perception
Tactile sensors can bring human-like perception capabilities to robots, simulating the skin's perception of external stimuli such as pressure, friction, and strain. They can also perceive physical properties of target objects such as hardness, texture, temperature, and humidity, and convert these physical signals into electrical signals, ultimately achieving precise interaction with the external environment.
The installation positions of tactile sensors in robots are around the "core area of physical interaction", and their core role is to ensure safety and improve operation accuracy. Currently, tactile sensors in the robotics field are mainly applied to the end of robotic hands and the fingertips of dexterous hands, and some have extended to the finger pads and palms. In the future, they will be applied to robotic arms/arms, lower limbs, trunks and cover the whole body.