Microcontroller based Power Efficient Signal Conditioning Unit for Detection of a Single Gas using MEMS based Sensor

Publications

Share / Export Citation / Email / Print / Text size:

International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic

GET ALERTS

eISSN: 1178-5608

DESCRIPTION

6
Reader(s)
30
Visit(s)
0
Comment(s)
0
Share(s)

VOLUME 3 , ISSUE 4 (December 2010) > List of articles

Microcontroller based Power Efficient Signal Conditioning Unit for Detection of a Single Gas using MEMS based Sensor

P. Bhattacharyya * / D. Verma / D. Banerjee

Keywords : MEMS, Gas sensor, Low power, Microcontroller, Signal Conditioning

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 3, Issue 4, Pages 771-782, DOI: https://doi.org/10.21307/ijssis-2017-420

License : (CC BY-NC-ND 4.0)

Published Online: 13-December-2017

ARTICLE

ABSTRACT

A low power MEMS based sensor along with the embedded power efficient signal conditioning unit (Microcontroller based), which can be used with any suitable sensor-network to detect and quantify variations in a particular gas concentration, has been reported in this paper. The power consumption of the MEMS gas sensor is ~ 70mW to 100mW depending upon its operating temperature (150-250°C) and that of entire signal conditioning unit (consisting of low noise amplifier, switch, microcontroller and power management chip) is ~ 36mW in the ON state and only ~7.2μW in OFF state (sleep mode). The test gas in this particular case was methane for which sensor resistance varied from 100KΩ to 10KΩ. This hybrid sensor system is very much suitable for detecting a single gas with display of corresponding gas concentrations and subsequent alarming if the threshold limit is crossed.

Content not available PDF Share

FIGURES & TABLES

REFERENCES

[1] Hagleitner. C, Lange D, Kerness N, Kummer A, Song W H, Hierlemann A,Brand O, Baltes H, CMOS single chip multisensor gas detection system,Proc. IEEE MEMS (2002) conference.
[2] Kensall D. Wise, Integrated sensors, MEMS, and microsystems: Reflections on a fantastic voyage, Sensors and Actuators A 136 (2007) 39–50
[3] K. D.Mitzner, J. Strnhagen, D. N. Glipeau, Development of micromachined hazardous gas sensor array, Sensors and actuators B 93 (2003) 92-99.
[4] J.S. Suehle, R.E. Cavicchi, M. Gaitan, S. Semancik, Tin oxide gas sensor fabricated using CMOS micro-hotplates and in situ processing, IEEE Electron. Device Lett. 14 (3) (1993) 118–120.
[5] S. Semancik, R.E. Cavicchi, M. Gaitan, J.S. Suehle, US Patent 5,345,213 (1994).
[6]Figaro Products Catalogue (2006), Figaro gas sensors 2000-series, Figaro Engineering Inc., European Office, Oststrasse 10, 40211 Dusseldorf,
Germany.
[7] S. Fung, Z. Tang, P. Chan, J. Sin, P. Cheung, Thermal analysis and design of a micro-hotplate for integrated gas-sensor applications,Sens. Actuators A 54 (1996) 482-487.
[8] A. Gotz, I. Gra¡cia, C. Cane¬, E. Lora-Taniayo, M. Horrillo, G. Getino, C. Gra¡cia, J.Gutie¬rez, A micromachined solid state integrated gas sensor for the detection of aromatic hydrocarbons, Sens. Actuators B 44 (1997) 483-487.
[9] G. Sberveglieri, W. Hellmich, G. Muller, Silicon hotplates for metal oxide gas sensor elements, Microsyst. Technol. 3 (1997) 183-190.
[10] A Low Power MEMS Gas Sensor based on Nanocrystalline ZnO Thin Films for Sensing Methane, P.Bhattacharyya, P.K.Basu, B. Mondal and H. Saha, Microelectronics Reliability 48 (2008) 1772–1779.
[11] M.Blaschke, T. Tille, P.Robertson, S. Mair, U.Weimar, .H. Ulmer, MEMS Gas-Sensor Array for Monitoring the Perceived Car-Cabin Air Quality, IEEE SENSORS JOURNAL, 6, no 5 (2006) 1298-1308.
[12] M. Afridi, A. Hefner, D. Berning, C. Ellenwood, A. Varma, B. Jacob, S. Semancik, MEMS-based embedded sensor virtual components for system-on-a-chip (SoC), Solid-State Electronics 48 (2004) 1777–1781.
[13.] Nanocrystalline ZnO based MEMS Gas Sensors with CMOS ASIC for Mining Appplications, N.Futane, P.Bhattacharyya, S.Barma, C. Roychaudhuri and H.Saha, International Journal on Smart Sensing and Intelligent Systems, 1(2) (2008) 430-442.
[14] Graf, M., Barrettino, D., Zimmermann, M., Hierlemann, A., Baltes, H., Hahn, S.,Barsan, N., Weimar, U, CMOS monolithic metal-oxide sensor system comprising a microhotplate and associated circuitry, IEEE Sensors Journal 4, Issue1, (2004) 9-6.
[15] G. C. Cardinali, L. Dori, M. Fiorini, I. Sayago, G. Faglia, C. Perego, G. Sberveglieri, V. Liberali, F. Malobertiand D. Tonietto, “A Smart Sensor System for carbon Monoxide Detection”, Analog Integrated Circuits and Signal Processing, vol.14, pp.275-296,1997.

EXTRA FILES

COMMENTS