Fiber-optic chemical sensors based on optical power absorption or wavelength changes are well known. A new type of sensing element is considered. A micromechanical vibrated fiber-optic tip changes its resonance frequency during its operation. Sensors of this type are simple and convenient and do not require adjustment while in use. They are useful in industry and in medical applications. The action of this sensitive element in a liquid is considered.

Abstract:Our approach incorporates the possibility of stepwise CO 2 purification in areas of the free atmosphere by spraying of alkaline compounds inside the clouds via an airplane. It causes significantly increases of the СО 2 solubility in rain droplets during their gravitational fall to provide the effective carbon transport to the ground. Presented calculations show a considerable increase of the gas/water interface for perfect CO 2 absorption. This future technology can compensate for annual carbon emission by method application at 0.42% -0.14% of our planet surface.

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