Assignment#01: Literature Survey on Sensors and Actuators ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Electronic Nose Sensor Prepared by: Kaleb Nelson Dept. of Electrical and Computer Engineering Utah State University E: ; T: (435) ; F: (435) (ECE Dept.) 3/6/2009

5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-2 Outline –Reference list –To probe further –Major applications –Basic working principle illustrated –A typical sample configuration in application –Major specifications –Limitations –And many more relevant issues in applications (such as, how to choose, cost information, where to buy etc.)

5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-3 Reference list y2004/06oct_enose.htm (1) (2) (3) (5)

5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-4 To explore further (survival pointers of web references etc) web.bu.edu/pub/laliden/WWW/Papers/nose.html

5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-5 Major applications On space shuttle and space station In food science Detection/diagnosis of certain diseases Chemical spill analysis/identification

Major Applications Cont. Wastewater analysis Cosmetic & perfume industry Flavor and fragance industry Anywhere when repeated exposure can be harmful to human olfactory panel 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-6

Major Applications Cont. Searching for Toxic Industrial Chemicals (TICs) and Chemical Warfare Agents (CWAs) Searching for mold and mildew Monitoring risky working conditions 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-7

On space shuttle or space station (Ref 1) There are many compounds that need to be taken on space shuttle (i.e. ammonia) Many of the chemicals “cannot be allowed to accumulate in a closed environment” It is necessary to have something more sensitive that the human nose at detecting compounds in the air. 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-8

In Food Science (Ref 3 and 5) As with many industries, quality control is essential when dealing with foods The E-Nose can help detect bacterial growth on foods such as meat and vegetables The E-Nose can assist in batch to batch consistency; detection of spoilage, contamination, adulteration. It can also simply monitor storage conditions 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-9

Food Science Examples –Quality classification of stored grains –ID of source and quality of coffee –Monitoring of coffee roasting process 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-10

Food Science Examples cont. –Rancidity measurements of olive oil (due to accumulation of short-term aldehydes) –Freshness of fish –Process control of cheese, sausage, beer, and bread 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-11

Detection/diagnosis of certain diseases Reference 3 Able to use noninvasive specimens (sputum, breath) Examples: –Detection and diagnosis of pulmonary infections (e.g., TB or pneumonia) –Diagnosis of ulcers by breath tests 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-12

Basic working principle (Ref 1: hownoseworks.ppt) 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-13 All of the polymer films on a set of electrodes (sensors) start out at a measured resistance, their baseline resistance. If there has been no change in the composition of the air, the films stay at the baseline resistance and the percent change is zero e-e- e-e- e-e- e-e- e-e- e-e- BASELINE RESISTANCE

Basic working principle continued (Ref 1) 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-14 Each polymer changes its size, and therefore its resistance, by a different amount, making a pattern of the change THE ELECTRONIC NOSE SMELLS SOMETHING e-e- e-e- e-e- e-e- e-e- e-e-

5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-15 Basic working principle continued (Ref 1) If a different compound had caused the air to change, the pattern of the polymer films' change would have been different: e-e- e-e- e-e- e-e- e-e- e-e-

Basic working principle Moxide semiconductors (MOS), quartz crystal microbalance, surface acoustic wave (SAW), and field effect transistors (MOSFET) can also be used instead of just the polymer films mentioned. 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-16

Typical sample configuration Any possible application with a commercially available electronic nose would simply be the commercially available product. Nothing else is needed. 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-17

Major Specifications Supply power Size (hand-held or larger) Data acquisition and storage methods –Wireless transmission or wired download Response time Detection accuracy Detectable substances 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-18

Limitations The E-Nose can only sense what it has been calibrated for. 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-19

How to get one Most of the information about electronic noses were from government applications (especially NASA) and university research. There are some commercially available E-noses ( pdf) –ppbRAEPlus –Cyranose 5/17/2015 ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators Slide-20