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The electronics field is developing at a fast rate. Each day the industry is coming with new technology and products. The electronic components play a major role in all fields of life. The scientists had started to mimic the biological world. The development of artificial neural network (ANN), in which the nervous system is electronically implemented is one among them.
The scientists realized the importance of the detection and identification of odor in many fields. In human body it is achieved with the help of one of the sense organ, the nose. So scientists realized the need of imitating the human nose. The concept of the electronic nose appeared for the first time in a nature paper by Persuade and Dodd (1982). The authors suggested and demonstrated with a few examples that gas sensor array responses could be analyzed with artificial neural networks thereby increasing sensitivity and precision in analysis significantly. This first publication was followed by several methodological papers evaluating different sensor types and combinations.
http://pptpdf.net/subcategory.php?categ=...20Nose.pdf
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hi,i'm a student of b.tech 4th year.
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give me a direct page link to download this report
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[attachment=4774]
THE ELECTRONIC NOSE AND THE BIOLOGICAL NOSE
or
smell scencer
abstract
A few smell-sensing instruments had been proposed in narrow applications earlier in the 1960’s. Moncrief developed one of the first smell detection instruments in 1961 for agricultural application, where he used a single coated thermistor as the smell sensor. In 1964, Wilkens and Hartmen developed a smell detector where an array of smell detectors was used [8].It was in late 1980’s that the first intelligent electronic smelling system came into being. Researchers in the University of Warwick in Coventry, England, developed sensor arrays for odour detection [5]. Pattern recognition techniques were used by Gardner to discriminate the output of electronic smell sensors. Hartfield described an integrated circuit based device that performs data acquisition from a miniature array of 32 conducting polymer gas sensors. David and Gardner designed a circuit capable of measuring signals from arrays of resistive and piezoelectric sensor types in the same board [8].
Electronic noses were originally used for quality control applications in the food, beverage and cosmetics industries. Current applications include detection of hazardous chemicals and explosives, detection of odours specific to diseases for medical diagnosis, and detection of pollutants and gas leaks for environmental protection. The Warwick pioneers envisioned an electronic equivalent of the mammalian olfactory system and so even though it doesn’t resemble its biological counterpart the least bit, the label ‘electronic nose’ or ‘E nose’ has been widely adopted. [5].
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i want seminar report on E-NOSE
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hiii i want to know about digital smell....
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hi.......................
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hii
plz send me seminar report about e nose.
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electronic nose full document
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I feel E-nose is interesting topic
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Mtech in vlsi
want to present a seminar on given subject