Essay On Electronic Senses

Electronic senses to touch us all

Dr. S. S. Verma, Department of Physics, S.L.I.E.T., Longowal, Distt.-Sangrur (Punjab)-148106.

Development and use of electronic devices from day to day life activities of human to its industrial & business applications have already revolutionized our world. Besides, electronic devices/sensors are being developed to work at par with the functions of human sense organs. Human has in general five sense qualities like touch, taste, smell, hear, vision and the whole actions of human body are controlled on the basis of electric signals through their respective body parts as: skin, tongue, nose, ear and eye. Electronic development has progressed well to

replicate these sense functions with electronic devices/sensors called: e-skin, e-tongue, e-nose, hearing aids and electronic-eye. Electronics not

The food, beverage, pharmaceuticals, plastics, packaging and environmental industries have clear uses for electronic senses. They can detect when flavors or odors in food are “off,” and if there has been contamination or migration of compounds from plastic packaging into content. MOS odor sensors also can control how fast a flavor is diluted, ensure quality-control, or reverse-engineer an aroma. Its electronic tongues can assess things like bitterness, whether a taste remains stable over time, or whether a product has been adulterated.

The refrigerator of the future may have sensors that detect when food is going bad. It might be connected to a food-management system that alerts a resident, who can then check in order to make a grocery list.

Cars in the future may have sensors that detect carbon dioxide. The level of carbon dioxide rises in a car with, say, a family driving on a long trip with the windows shut. That’s dangerous, because carbon dioxide can make the driver sleepy. A sensor would alert the driver and passengers that they need to stop for fresh