Angle Sensor for Minimally Invasive Surgical Robot Based on Surface Plasmon Resonance with Kretschmann Prisms
Year: 2024
Type: article
Abstract: This study proposes a bimetallic Ag-Au sensor through a comparative analysis with traditional Ag-only membrane sensors and Au-only membrane SPR sensors. The innovative SPR sensor design is utilized for angle measurement sensing, particularly in the context of surgical robotic arms. The research findings indicate that the Ag film sensor exhibits the highest sensitivity, while the bimetallic Ag-Au sensor demonstrates superior sensitivity compared to the Au-only sensor. Furthermore, the stability of the bimetallic Ag-Au sensor surpasses that of the Ag-only sensor.After evaluating the performance parameters based on experimental and simulation results, the sensor with 40 nm Ag and 10 nm Au film thickness is identified as the optimal design. Experimentally verified, this configuration yielded the best sensing performance, with a sensitivity of 628.95 for changes in folding angle. This represents a 275.64% improvement over the pure Au sensor and a 210.43% enhancement over the pure Ag sensor in terms of sensitivity for angle changes.
Source: Plasmonics
Authors: Heya Zheng, Yanpei Xu, Jinhong Pan, Meng Sun, Qi Wang
Institution: Northeastern University
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,790
OpenAlex ID: W4403360612