A sensor is a device which receives and responds to a signal.Nanowire sensors are those which are made up of Nanowires.They have high detection sensitivity and response time.
Electronic Nose Concept
An electronic nose is a device intended to detect odors and flavors.Electronic sensing- capability of reproducing human senses using sensor arrays and pattern recognition systems.
Electronic Nose Concept
An electronic nose is a device intended to detect odors and flavors.Electronic sensing- capability of reproducing human senses using sensor arrays and pattern recognition systems.
E- Nose Principle
Electronic nose consists of three major systems.Sample Delivery system - Generates headspace and injects them into the detection system.Detection or Sensing system-”reactive part” which detects the change of electrical properties and converts them into a digital signal.Computing system- It combines all the inputs from various sensors which represents the input for data treatment.
Advantages of Using Nanowires in detecting systems
- When Nanowire sensors are used in making sensor arrays
- Accuracy is maintained in detecting charges and electric field changes.
- Recorded signals will be more precise.
- Reaction of headspace with the sensors increase due to large area of contact.
- The transistors in MOSFET will not have any exceptions which are normally encountered with conventional ones.
- The problem of obtaining incorrect results due to mismatching of the samples with original database are eliminated since they are compared from a nano level.
Applications of Electronic Nose
- The electronic Nose instruments find a large number of applications in
- Research & Development
- laboratories.
- Quality Control
- Laboratories.
- Process and production
- Departments
Other Areas Involved
They are also used to analyze in certain areas & companies like:Flavor and Fragrance,Food and Beverages,Packaging,Pharmaceuticals.Chemicals,Cosmetics and Perfumes.
They are also used to analyze in certain areas & companies like:Flavor and Fragrance,Food and Beverages,Packaging,Pharmaceuticals.Chemicals,Cosmetics and Perfumes.
Thus Electronic Nose is a wonderful Boon for the future of Electronics.By using Nanowire Sensors the applications of Electronic Nose are made enormous and effective.
