Design and analysis of moems based displacement sensor for detection of muscle activity in human body
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ORIGINAL RESEARCH
Design and analysis of moems based displacement sensor for detection of muscle activity in human body Preeta Sharan1 • K. V. Sandhya2 • Rakesh Barya3 • Mohit Bansal4 • Anup M. Upadhyaya5
Received: 7 November 2019 / Accepted: 30 September 2020 Ó Bharati Vidyapeeth’s Institute of Computer Applications and Management 2020
Abstract Proposed work consist of simple and micro size optical MEMS based displacement sensor for detection of muscle movement in human body. Optical MEMS based structure, analyzed with rods-in air and hole-in slab configuration of photonic crystal. Remarkable shift in wavelength is observed in RIA configuration with high quality factor of 3245 compare to holes in slab in the photonic sensing structure with Q factor 1456. Optical sensitivity of device with rods in air configuration is 350 nm/RIU is obtained and from the result, the distinctly visible shift in wavelength is found to be optimum for fabrication of projected device. Proposed work is applicable for the muscle movement of human body during medical diagnosis and for daily life activities.
& Preeta Sharan [email protected] K. V. Sandhya [email protected] Rakesh Barya [email protected] Mohit Bansal [email protected] Anup M. Upadhyaya [email protected] 1
Department of E&C Engineering, TOCE, Bangalore, India
2
Department of E&C Engineering, CMRIT, Bangalore, India
3
Fibre Optic Division, Eagle Photonics, Bangalore, India
4
Department of Mechatronics, TOCE, Bangalore, India
5
Department of Mechanical Engineering, TOCE, Bangalore, India
Keywords Photonic crystal HIS (holes in slab) RIA (rods in air) Muscular activity Movement detection Human body Optical MEMS.
1 Introduction Optical nano structures that affect the photon motion much similar to motion of ionic lattices affected by electron motion is photonic crystal. Combination of electronics, optics and mechanics is system called MOEMS. Change in position of mechanical element will manipulate the light wave travelling through sensing structure. Electromyography is the technique used widely for detection of slow movement of muscles. Keeping the electrodes on the skin and output will have change in EMG signal generated during the diagnostic process. Different human diseases can be detected by EMG signals such as cervical spondylitis, dermatomyositis, polymyosits etc. Unfortunately electromyography has many limitations in clinical case. Main limitations occurs due to patient with obesity and advanced age. Photonic based sensor can overcome this limitations because of its high sensitivity.
2 Literature survey According to the survey of India 2.1% of the entire population has physically disabled people without hands and legs. But there will be a movement in their muscles, in order to help these people, from the past decades, there are many instruments and devices used for the physically disabled people, that are working with the help of batteries, gas engines and with the power source but these instruments are difficu
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