Rotating, dancing, playing instruments, making coffee… At the robot exhibition area of the main venue of the World Manufacturing Conference, different companies showcased their latest products, each demonstrating their unique capabilities.
“How does a robotic hand accurately grasp a coffee cup without crushing it? The secret lies in the sensors hidden in the joints, which give machines a ‘sense of touch.'” Chen Song, the representative from the Bengbu-based sensor company, Zhongke Midian, told reporters that the exhibits brought by the company mainly consist of six-dimensional force sensor solutions, which are primarily applied in humanoid and industrial robots.
Six-dimensional force sensor
How can a screen be precisely installed on a mobile phone? He gave an example on-site: an industrial robot equipped with a six-dimensional force sensor can accurately control its force, ensuring that it does not apply excessive pressure that could crush the screen during delicate installations, nor apply insufficient force that could lead to improper installation.
After installing six-dimensional force sensors on humanoid robots, the overall stability can be improved by over 45%. Chen Song explained that when a robot’s foot lands on the ground, it may not be vertical and may include some lateral forces, which need to be adjusted through the sensor’s force feedback to the overall system to enhance the robot’s stability.
It is reported that in the wave of intelligent and digital transformation in global manufacturing, six-dimensional force sensors, as core components of precision force control, are experiencing unprecedented development opportunities. Industry analysis shows that by 2025, the global market size for six-dimensional torque sensors is expected to exceed 10 billion yuan, and by 2030, it is expected to surpass 23 billion yuan, with an average annual compound growth rate of 88%, paving the way for a high-growth sector.
In this context, the Chinese market not only occupies an important position but also presents unique strategic opportunities. Established in 2019, Anhui Zhongke Midian Sensor Co., Ltd. leverages the research and development foundation of the Chinese Academy of Sciences to precisely enter this sector, focusing on three core technical barriers in the industry—structural design, decoupling algorithms, and precision calibration, systematically advancing technological breakthroughs and industrialization practices.
Since its inception, Zhongke Midian has targeted the three major technical barriers of six-dimensional force sensors—structural design, decoupling algorithms, and precision calibration, launching systematic research efforts.
In terms of mechanical structure, the company has innovatively designed an elastomer structure and strain gauge mounting process, significantly suppressing inter-axis coupling interference from a physical perspective, and has selected high-performance aluminum alloy materials to ensure the product has excellent zero-point stability and fatigue life.
In terms of algorithms, Zhongke Midian has made breakthroughs in high-precision real-time decoupling and signal compensation technology, achieving comprehensive accuracy of 0.1%-0.5% and single-axis accuracy of 0.01% through model correction of raw data. This performance has been certified by the Beijing 304 Institute (the national standard-setting body for six-dimensional sensors and the only authoritative testing institution in China), marking that the product has reached an internationally advanced level.
The company has also independently built a comprehensive calibration system, implementing precise calibration for each sensor to ensure long-term stable operation in high-intensity industrial environments, meeting the reliability requirements for 7*24 hours of continuous operation.
Zhongke Midian’s products have achieved performance indicators such as accuracy, stability, no lag, and zero drift that are comparable to imported brands, while also showing significant advantages in cost control, customized development, and service response. A company representative stated: “We achieve import-level performance at domestic costs, and customer feedback indicates that the products perform reliably in various application scenarios, not only achieving import substitution but also significantly reducing overall usage costs.” Additionally, compared to similar domestic products, Zhongke Midian has certain advantages in batch consistency and long-term stability due to its background in the Chinese Academy of Sciences and continuous investment in research and development, making it the preferred partner for many high-end equipment manufacturers to replace imports.
Driven by both policy support and market demand, the blue ocean for six-dimensional force sensors is rapidly expanding. Zhongke Midian has not only become a new benchmark for domestic high-end sensors with ultra-high precision, excellent stability, and highly customizable capabilities but has also vividly illustrated the transformation and upgrading of Chinese manufacturing relying on technological innovation. In the future, Zhongke Midian will continue to take innovation as the core driving force, deeply integrate policy resources and market orientation, continuously enhance product performance and application experience, and strive to convey a louder “Chinese voice” in the global high-end sensor field.
Source: Zhong’an Online Client
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