Absolute rotary encoder system based on optical sensor for angular measurement

Lin, Wen-Yen; Huang, Ching-Wen

doi:10.1007/s11227-020-03585-4

Cited by 1 publication

(1 citation statement)

References 13 publications

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“…In [17], the wearable woven sleeves were encapsulated with an accelerometer based on an e-textile to measure the bending angle in both the arm and knee joints. Since the electronic and optical fiber goniometer was better than the mechanical goniometer, a reliable and non-invasive PSC-ARE encoder was proposed to capture the code image by the optical mouse sensor (with low cost and high accuracy) [18]. In [19], a fiber Bragg grating goniometer, FBGG, was proposed to evaluate the articular angular motion by transforming the joint rotational motion into a cantilever strain change.…”

Section: Introductionmentioning

confidence: 99%

Development of Joint Activity Angle Measurement and Cloud Data Storage System

Tuan

Yeh

et al. 2022

Sensors

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In this study, we developed a range of motion sensing system (ROMSS) to simulate the function of the elbow joint, with errors less than 0.76 degrees and 0.87 degrees in static and dynamic verification by the swinging and angle recognition modules, respectively. In the simulation process, the ɣ correlation coefficient of the Pearson difference between the ROMSS and the universal goniometer was 0.90, the standard deviations of the general goniometer measurements were between ±2 degrees and ±2.6 degrees, and the standard deviations between the ROMSS measurements were between ±0.5 degrees and ±1.6 degrees. With the ROMSS, a cloud database was also established; the data measured by the sensor could be uploaded to the cloud database in real-time to provide timely patient information for healthcare professionals. We also developed a mobile app for smartphones to enable patients and healthcare providers to easily trace the data in real-time. Historical data sets with joint activity angles could be retrieved to observe the progress or effectiveness of disease recovery so the quality of care could be properly assessed and maintained.

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Section: Introductionmentioning

confidence: 99%