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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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