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首页> 外文会议>Smart Medical and Biomedical Sensor Technology II; Progress in Biomedical Optics and Imaging; vol.5, no.32 >Novel fiber optic sensor for Grip testing
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Novel fiber optic sensor for Grip testing

机译：用于握力测试的新型光纤传感器

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摘要

Grip strength is an easy measure of skeletal muscle function as well as a powerful predictor of disability, morbidity and mortality. In order to measure the grip strength, a novel fiber optic approach is proposed and demonstrated. Strain dependent wavelength response of fiber Bragg gratings (FBGs) has been utilized to obtain the strength of individual fingers. Five FBGs are written at different center wavelengths on a single photosensitive fiber. Each FBG is used to get the response from each individual finger. The fiber containing the gratings is attached to a suitable grip holder, which can effectively transfer the grip force to the FBGs. An additional reference FBG is also provided to make the device temperature insensitive. Experimental results show that the wavelength shifts of the order of 0.2-0.5 nm can be achieved for individual fingers. The device is calibrated in terms of load to convert the wavelength shift to the strength of the grip. The time dependent wavelength fluctuations was also studied and presented in this paper.
机译：握力是衡量骨骼肌功能的简便方法，也是残疾，发病率和死亡率的有力预测指标。为了测量抓地力，提出并演示了一种新颖的光纤方法。光纤布拉格光栅（FBG）的应变相关波长响应已用于获得各个手指的强度。五个FBG以不同的中心波长写在一根光敏纤维上。每个FBG用于获取每个手指的响应。包含光栅的光纤连接到合适的握持器，可以将握持力有效地传递到FBG。还提供了另一个参考FBG，以使设备温度不敏感。实验结果表明，单个手指可以实现0.2-0.5 nm的波长偏移。根据负载对设备进行校准，以将波长偏移转换为手柄的强度。还研究了随时间变化的波长波动，并在本文中进行了介绍。

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