Optical fiber type wearable human body motion sensor
A technology of human body motion and optical fiber sensing, which is applied to convert sensor output and use optical devices to transmit sensing components, instruments, etc., can solve problems such as poor flexibility, and achieve the effects of good flexibility, reduced volume, and reduced complexity.
Active Publication Date: 2019-11-05
HUAZHONG UNIV OF SCI & TECH
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[0005] Aiming at the defects of the prior art, the object of the present invention is to provide an optical fiber wearable human body motion sensor, which aims to solve the problem of poor flexibility caused by the use of quartz optical fibers in the prior art
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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0043] In order to achieve the above object, the present invention proposes a fiber optic wearable human motion sensor, such as figure 1 As shown, it includes a micron optical fiber probe 201, an optical fiber sensing protection unit 202, and a flexible packaging unit 203;
[0044] Wherein, the optical fiber sensing protection unit 202 covers the surface of the micron optical fiber probe 201, and is embedded in the flexible packaging unit 203, forming a layer-by-layer nesting structure;
[0045] The micron fiber optic probe 201 is used to sense the movement of the human body according to the chang...
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The invention discloses an optical fiber type wearable human body motion sensor. The sensor comprises a micrometer optical fiber probe, an optical fiber sensing protection unit and a flexible packaging unit; the micrometer optical fiber probe is used for sensing the motion of the human body according to the change of a reflected light signal caused by bending deformation of a conical transition zone and a micrometer optical fiber zone due to the movement of the human body; the micrometer optical fiber probe can withstand the large-angle bending deformation of joint flexion and extension, and has higher flexibility and tensile strength. The invention discloses a preparation method of the micrometer optical fiber probe. The micrometer optical fiber probe is prepared by performing a fused biconical taper process on a common single-mode optical fiber, and the complexity of the preparation process is greatly reduced. The invention also discloses a multi-point detection device for the optical fiber type wearable human body motion sensor. Based on the principle of time division multiplexing, conductive optical fibers of different lengths are arranged to separate and divide reflected lightpulses of each wearable sensor to realize multi-point simultaneous detection, and the flexibility and versatility of the multi-point detection device are improved.
Description
technical field [0001] The invention belongs to the technical field of wearable optical fiber sensing, and more specifically relates to an optical fiber type wearable human motion sensor. Background technique [0002] The application of wearable sensors in the fields of human motion monitoring and health care has always attracted much attention, and they play an important role in human-computer interaction, rehabilitation therapy and athlete training. With the development of flexible conductive materials, the existing electrical wearable sensors generally combine conductive sensing units with flexible packaging materials. The electrical properties of the sensing unit change. However, the current leakage caused by insufficient insulation, the complexity of the preparation of the conductive sensing unit, and the inherent defects of being unable to resist electromagnetic interference are still problems that cannot be effectively solved by electrical wearable sensors at present...
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IPC IPC(8): G01D5/353G01D5/36G01B11/16
CPCG01B11/16G01D5/3539G01D5/36
Inventor 孙琪真谭仕杰李岩鹏刘涛张威闫志君刘德明
Owner HUAZHONG UNIV OF SCI & TECH