Single Chip Gas Sensor (Array) for Environmental Pollution monitoring
This talk brief about the fabrication of four element gas sensor array for monitoring air pollutants, namely CO, CO2, NO2 and SO2. The four micro-heaters share a single suspended SiO2 diaphragm, utilizing thermal proximity to achieve low power consumption (~10mW for 300oC). PECVD SiO2 diaphragm is demonstrated to give very high yield compared to thermally grown SiO2. Sensor array elements are fabricated by customizing each element to sense a specific gas, using different sensing materials. Optimized thin films of ZnO, BaTiO3-CuO doped with 1% Ag, WO3, and V2O5 are used for selective sensing of CO, CO2, NO2 and SO2. Four sensors can be independently controlled to operate at different temperatures to get high selectivity for test gases. The sensor array is packaged on Kovar header and then characterized for gas sensing. It is demonstrated that the sensors exhibit good sensitivity and selectivity. We report a maximum repeatable response to CO (~ 78.3% for 4.75 ppm), CO2 (~ 65% for 900 ppm), NO2 (~ 1948.8% for 0.9 ppm) and SO2 (~ 77% for 3 ppm) at operating temperatures of 330ºC, 298ºC, 150oC and 405ºC, respectively.
Date and Time
Location
Hosts
Registration
- Date: 19 Jul 2016
- Time: 04:00 PM to 06:00 PM
- All times are (UTC-04:00) Eastern Time (US & Canada)
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- 161 Warren Street
- 161 Warren St
- Newark, New Jersey
- United States 07102
- Building: ECE
- Room Number: 202
- Click here for Map
- Contact Event Host
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Dr. Durga Misra, Ph: 973-596-5739, email: dmisra@ieee.org
Dr. Ajay K. Poddar, Ph.: 201-560-3806, email:akpoddar@ieee.org
Dr. Edip Niver, email: edip.niver@njit.edu
- Co-sponsored by AP01/MTT17
- Starts 12 July 2016 11:00 AM
- Ends 19 July 2016 04:00 PM
- All times are (UTC-04:00) Eastern Time (US & Canada)
- No Admission Charge
Speakers
S. B. Rudraswamy of SJ College of Engineering, Mysuru, India
Single Chip Gas Sensor (Array) for Environmental Pollution monitoring
This talk brief about the fabrication of four element gas sensor array for monitoring air pollutants, namely CO, CO2, NO2 and SO2. The four micro-heaters share a single suspended SiO2 diaphragm, utilizing thermal proximity to achieve low power consumption (~10mW for 300oC). PECVD SiO2 diaphragm is demonstrated to give very high yield compared to thermally grown SiO2. Sensor array elements are fabricated by customizing each element to sense a specific gas, using different sensing materials. Optimized thin films of ZnO, BaTiO3-CuO doped with 1% Ag, WO3, and V2O5 are used for selective sensing of CO, CO2, NO2 and SO2. Four sensors can be independently controlled to operate at different temperatures to get high selectivity for test gases. The sensor array is packaged on Kovar header and then characterized for gas sensing. It is demonstrated that the sensors exhibit good sensitivity and selectivity. We report a maximum repeatable response to CO (~ 78.3% for 4.75 ppm), CO2 (~ 65% for 900 ppm), NO2 (~ 1948.8% for 0.9 ppm) and SO2 (~ 77% for 3 ppm) at operating temperatures of 330ºC, 298ºC, 150oC and 405ºC, respectively.
Biography:
Dr S B Rudraswamy received the B.E. degree in electronics and communication from Kuvempu University, Karnataka, India, in 2002, the M.Tech. degree in VLSI design and embedded system from (SJCE) VTU, Karnataka, and the Ph.D. degree in microelectronics and nanotechnology from the Indian Institute of Science, Bangalore, India, in 2015. He is currently an Assistant Professor in the Department of Electronics and Communication Engineering, Sri Jayachamarajendra College of Engineering, Mysuru, India. He was associated with the Department of Electrical Communication Engineering and the Center for Nano Science and Engineering, IISc during his Ph.D. He his the IEEE-EDS Staff advisor at SJCE, Mysore. He has won many awards like Best Doctoral Thesis, Best Technical paper award, Best Poster Award.
Email:
Address:Department of Electronics and Communication Engineering, Sri Jayachamarajendra College of Engineering, Mysuru, Karnataka, India, 570006
S. B. Rudraswamy of SJ College of Engineering, Mysuru, India
Single Chip Gas Sensor (Array) for Environmental Pollution monitoring
Biography:
Email:
Address:Mysuru, Karnataka, India
S. B. Rudraswamy of SJ College of Engineering, Mysuru, India
Single Chip Gas Sensor (Array) for Environmental Pollution monitoring
Biography:
Email:
Address:Mysuru, Karnataka, India
Agenda
Event Time:4:00 PM to 6:00 PM
4:00 PM- Refreshments and Networking
4:30PM-6:00 PM: Talk by Prof. Dr.Rudraswamy
Seminar in ECE 202
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