Flexible optical pressure sensor with high spatial resolution based on deep learning

Zhengshuai Cao; Zhenyue Lu; Qi Zhang; Dong Luo; Jingtao Chen; Qiong Tian; Zhiyuan Liu; Yuming Dong

doi:10.1117/12.2623649

27 March 2022 Flexible optical pressure sensor with high spatial resolution based on deep learning

Zhengshuai Cao, Zhenyue Lu, Qi Zhang, Dong Luo, Jingtao Chen, Qiong Tian, Zhiyuan Liu, Yuming Dong

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121693C (2022) https://doi.org/10.1117/12.2623649
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Robot grasping and manipulating objects rely on sensors for force magnitude and spatial detection entirely. The pressure sensor is one of the most basic sensors. Most of the existing pressure sensors are composed of rigid materials, relying on resistance, piezoelectricity, and capacitance principles. The sensors are sensitive to electromagnetic fields, which limits their applications largely. Simultaneously, the resolution of pressure sensors plays an essential role in precise measurements. Hence, we designed a flexible optical pressure sensor with high spatial resolution using flexible silicone as substrate, optical fibers for transmitting light, and a camera as the receiver of images. This optical sensor is not affected by electromagnetic fields, while the flexible materials achieve soft properties of the sensor. Deep learning can decipher pictures. As a result, the better Root Mean Square Error (RMSE) for localization is about 0.1 mm order of magnitude, and the normal force (F_z) is around 0.67 N. This work has contributed to sensors for flexible electronics and robotics.

Citation Download Citation

Zhengshuai Cao, Zhenyue Lu, Qi Zhang, Dong Luo, Jingtao Chen, Qiong Tian, Zhiyuan Liu, and Yuming Dong "Flexible optical pressure sensor with high spatial resolution based on deep learning", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121693C (27 March 2022); https://doi.org/10.1117/12.2623649

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available