微电子机械系统
校准
脊柱侧凸
材料科学
计算机科学
工程类
外科
光电子学
物理
医学
量子力学
作者
David Benfield,Shichao Yue,Edmond Lou,Walied A. Moussa
标识
DOI:10.1088/0960-1317/24/8/085008
摘要
A six-axis sensor array has been developed to quantify the 3D force and moment loads applied in scoliosis correction surgery. Initially this device was developed to be applied during scoliosis correction surgery and augmented onto existing surgical instrumentation, however, use as a general load sensor is also feasible. The development has included the design, microfabrication, deployment and calibration of a sensor array. The sensor array consists of four membrane devices, each containing piezoresistive sensing elements, generating a total of 16 differential voltage outputs. The calibration procedure has made use of a custom built load application frame, which allows quantified forces and moments to be applied and compared to the outputs from the sensor array. Linear or non-linear calibration equations?are generated to convert the voltage outputs from the sensor array back into 3D force and moment information for display or analysis.
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