Cảm biến biến dạng sợi hiệu suất cao với lớp cảm biến synergistic cho nhận diện chuyển động của con người và điều khiển robot

Springer Science and Business Media LLC - Tập 6 - Trang 1-14 - 2023
Taoyu Shen1, Shun Liu2, Xiaoyan Yue1, Ziqi Wang1, Hu Liu1, Rui Yin1,3, Chuntai Liu1, Changyu Shen1
1State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
2School of Computer and Artificial Intelligence, Zhengzhou University, Zhengzhou, China
3China Astronaut Research and Training Center, Beijing, China

Tóm tắt

Với sự phát triển của các thiết bị điện tử linh hoạt và công nghệ Internet of Things, cảm biến biến dạng linh hoạt đã cho thấy tiềm năng ứng dụng to lớn. Phạm vi hoạt động và độ nhạy phản hồi là hai tham số chính để đánh giá hiệu suất của cảm biến biến dạng linh hoạt. Tuy nhiên, việc kết hợp giữa phạm vi làm việc rộng và độ nhạy phản hồi cao vẫn là một thách thức nổi bật đối với cảm biến biến dạng linh hoạt. Trong nghiên cứu này, một cảm biến biến dạng sợi CNT@TPU (CTFSS) với lớp cảm biến synergistic đã được chế tạo bằng phương pháp electrospinning và phun. Nhờ vào lớp cảm biến synergistic được cấu thành từ lớp CNT liên tục ổn định và lớp CNT cấu trúc nứt, CTFSS chế tạo được thể hiện độ nhạy phản hồi cao (hệ số đo lớn nhất, GFmax = 8.9 × 104) trong phạm vi hoạt động rộng từ 0 đến 630%, thời gian đáp ứng/phục hồi nhanh 120/150 ms, cũng như độ ổn định cảm biến và độ bền tốt qua hơn 10,000 chu kỳ. Kết quả là, nó có thể được sử dụng để theo dõi biến dạng nhỏ như xung và rung dây thanh âm, cũng như phát hiện biến dạng lớn của con người như đi bộ, chạy, gập ngón tay và gập khuỷu tay. Ngoài ra, một găng tay dữ liệu đã được lắp ráp dựa trên CTFSS và được sử dụng cho nhận diện ngôn ngữ ký hiệu và kiểm tra điều khiển cơ học của lòng bàn tay, cho thấy triển vọng ứng dụng rộng rãi trong nhận diện ngôn ngữ ký hiệu thông minh và điều khiển từ xa các robot. Quan trọng là, màng sợi CNT@TPU thu được cũng sở hữu khả năng gia nhiệt Joule và gia nhiệt quang vượt trội, giúp CTFSS có khả năng quản lý nhiệt cá nhân hiệu quả cao trong các môi trường khắc nghiệt.

Từ khóa

#cảm biến biến dạng #CNT@TPU #công nghệ điện tử linh hoạt #nhận diện chuyển động #điều khiển robot #lớp cảm biến synergistic

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