oxygen analyzer jay patel #19 april 27, 2011. senior design project [1]
DESCRIPTION
Overview Introduction Current Methods Open Flame Zinc-Air Battery Car Oxygen Sensor New Approach Device Schematic Ethics Conclusion [2]TRANSCRIPT
Oxygen Analyzer
Jay Patel #19April 27, 2011
Senior Design Project
[1]
Overview Introduction Current Methods
Open Flame Zinc-Air Battery Car Oxygen Sensor
New Approach Device
Schematic Ethics Conclusion
[2]
Introduction Engineering World
Health (EWH)
Oxygen Concentrators
Current Method to Test
Oxygen Concentration
Open Flame Method
[5]
[4]
[3]
Open Flame Method
[6]
Zinc-air Battery Oxygen Sensor Pros
Relatively inexpensive components Total cost less then $10 Easily assembled
Cons Battery Replacement every 200hrs Temperature dependent Accurate up to 80% O2 concentration
Current Sensors
[7]
Current Sensors Continued…
Car O2 Sensor Pros
Mechanical strength Resistance to wear and corrosion
Cons Replaced every 12-24 months Expensive over time Loss of Calibration
[8]
New Approach
Colorimetric Oxygen Sensor
Pros: Cheap Easy to use Easy to run Accurate Does not require re-calibration Small/Portable
Cons: The polymer needs to be replaced Degradation of the polymer affects the readout
[9]
Fluorescence Quenching
[10]
Schematic
GREEN LED
POLYMER
INTENSITY METER
LED SCREENMIRRO
R OUTER CASING
INNER HOUSING[11]
Ethics
Degrades Disposable Part Expensive Over Time Toxic Waste
Singlet Oxygen Released Inefficient Stabilizer Further Research
[12]
Conclusion
Promising and Challenging Approach Further Development is Required
[13]
Thank You
Index of Illustrations [1] BME 180 Senior Design Team 7
[2] http://www.quintex.info/home/images/Overview.JPG
[3] http://upload.ecvv.com/upload/Product/200801/200691490339536694_Portable_Oxygen_Concentrator.jpg
[4] http://www.jeffgordonchildrensfoundation.org/atf/cf/%7B6CE8BB8A-70EF-46A9-B74F-B24271B2E94C%7D/thumbcache/incubators%20arrive%20Wete%20Hospital%20Pemba%20copy_thumb_400.jpg
[5] http://www.inmed.us/training_sites/mseleni_hospital_south_africa.asp
[6] http://www.oldschool.com.sg/modpub/184614409647a4b14071656
[7] http://chem.sci.utsunomiya-u.ac.jp/cejrnlE.html
[8] http://www.bobblick.com/techref/projects/o2sensor/o2sensor.html
[9] http://linkinghub.elsevier.com/retrieve/pii/S0925400511000037
[10] http://linkinghub.elsevier.com/retrieve/pii/S0925400511000037
[11] BME 180 Senior Design Team 7
[12] http://www.hobotraveler.com/labels/Water.html
[13] http://almacog.org/reach-out/mission-to-sierra-leone-west-africa