Development of Shoelace Tensile Test System Based on Micro Sensors and Reliability Study
10.16156/j.1004-7220.2023.01.24
- VernacularTitle:一种基于微型传感器的鞋带拉力测试系统研制及可靠性研究
- Author:
Shutao WEI
1
,
2
;
Xinyu GUO
1
;
Yunqi TANG
1
;
Biao YAN
1
;
Lingjun LI
1
;
Li LI
3
Author Information
1. College of Art and Design, Shaanxi University of Science & Technology
2. 361 Degrees ( China ) Co. , Ltd.
3. Department of Health Sciences and Kinesiology, Georgia Southern University
- Publication Type:Journal Article
- Keywords:
shoelace;
tensile sensor;
reliability;
accuracy;
precision
- From:
Journal of Medical Biomechanics
2023;38(1):E164-E169
- CountryChina
- Language:Chinese
-
Abstract:
Objective To design and verify the reliability of a shoelace tensile test system. Methods Incremental loads of 0-196 N were applied to three tension sensors, each load was repeated nine times, with the load removed and interval of 30 s during the repeated tests. Then output voltage of the sensors under each load was collected. Linear regression analysis was used to explore linear relationship between the collected voltage signal and the incremental load. Accuracy, precision and consistency intervals were used to verify consistency of the measured values with the true load. Bland-Altman analysis and intra-group correlation coefficient (ICC) analysis were used to verify the repeatability and reliability of the tensile sensor. Results There was a significant linear correlation between output voltage signal of the sensors and the load (P< 0. 000 1, R2= 0. 999 9), and ICC of three sensors was above 0. 999 (P<0. 000 1). The mean values of the coefficients of variation of the measured values for three tensile sensors under different loads were 0. 003 8, 0. 002 2 and 0. 003 5, respectively. Conclusions The shoelace tensile test system has high reliability and can be used for real-time acquisition of shoelace tension.
