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Photonic Sensors Lab
Indian Institute of Technology, Gandhinagar
"The work will teach you how to do it"
Compact, automated water vapour sensing system operating in different places in Gandhinagar.
The system is built around a 1392 nm tunable laser diode that is controlled by custom electronics to control the laser temperature and current. The system uses a 1f wavelength modulation spectroscopy (1f WMS) technique developed in our lab. A Python code acquires data from a PicoScope and uses this algorithm to estimate the mole fraction and pressure of water vapour. The processing time is about 6 s, making it well-suited for near-real-time applications.
Ambient CO2 measurement in Mt Abu
Ambient CO2 measurement in Motera
Detection of CO2 in a chemical reaction
FBG-based glove to monitor finger flexure
The DRDO Dare to Dream awards ceremony
Chandan's FBG-based microphone
The singing wine glass
Fiber Bragg grating-based microphone
Detecting growth of bacteria using laser spectroscopy
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