Dhanbad, Aug 20 (PTI) Researchers at IIT (ISM) Dhanbad have been granted a patent for a temperature-independent optical sensor that may precisely measure the lean of constructions and gear in two instructions, providing a light-weight various for monitoring purposes in bridges, industries, robotics, aerospace and geotechnical methods, the institute stated on Thursday.
The patent utility was filed on February 10, 2025, by researchers from the the institute’s electronics engineering division.
“The sensor makes use of Fiber Bragg Grating (FBG) expertise. In easy phrases, FBG makes use of a really skinny glass fibre to detect small actions or adjustments. Tiny patterns contained in the fibre work together with mild, and adjustments within the mild assist decide how a lot an object has tilted,” it added.
The sensor has a glass-fibre-based rectangular arm and a suspended spherical pendulum enclosed in a compact field and it might probably measure inclination in two instructions whereas decreasing errors brought on by adjustments in temperature.
“The optical sensor is light-weight, proof against electromagnetic interference and appropriate for harsh environments. Additionally it is designed for low upkeep and long-term monitoring, making it probably helpful for checking the steadiness of constructions, equipment and gear,” it stated.
Its purposes may embody structural well being monitoring, industrial automation, robotics, aerospace, medical gear and geotechnical monitoring, the place detecting even small adjustments in inclination will be essential, it added.
Affiliate Professor Dr Amitesh Kumar and his analysis scholar Randhir Kumar Sah are the inventors of the patented expertise, titled ‘Temperature Unbiased 2-D Optical Tilt Sensor’.
Kumar has been a college member at IIT (ISM) since 2011 and is at present an affiliate professor.
His analysis areas embody photonic built-in circuits, fibre-optic sensors, microwave photonics and radio-over-fibre applied sciences for 5G and past. PTI NAM MNB
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