Broadband Terahertz Trace-gas Sensor has Part-per-billion Sensitivity. Researchers at the National Institute of Standards and Technology (NIST; Gaithersburg, MD) have developed a broadband trace-gas sensor that they say is 100 times faster and more sensitive than similar technologies. The sensor, built from off-the-shelf components that can be held in two hands, uses a chirped-pulse terahertz spectroscopy technique to simultaneously detect many different trace gases within a mixture ...

Articles, Papers and Reference		Sponsored Links:
1.	M. Maute, S. Raible, U. Ulmer, F.E. Prins, U. Weimar, D.P. Kern, W. Gopel, Detection of Volatile Organic Compounds (VOCs) with Polymer Coated Cantilevels, In Proceedings of the 12th European Conference on Solid-State Transducers and the 9th UK Conference on Sensors and their Applications, Southampton, UK, 13-16 September 1998, EUROSENSOR XII, Ed. by N. M. White, Institute of Physics Publishing Bristol and Philadelphia, Sensors Series, volume 2, pp. 1083-1086.	Universal Enterprises AGA5000 Gas Analyzer
2.	S. Brigati, F. Francesconi, F. Maloberti, C. Melano Protti, and M. Poletti, "A VLSI full custom general purpose gas sensor interface", Proceedings of IEEE International Conference on Electronics, Circuits, and Systems (ICECS `97) , Cairo, Egypt, pp. 1490-1493, 1997. Abstract - This paper presents the design of a general purpose gas sensor interface used in toxic gas control systems. The system integrates a large number of complex analog, digital and periphery functions in a single IC, offering on one hand the advantage of higher reliability, higher rejection of EMI interferences and reduced power consumption and a high flexibility in interfacing with a wide variety of gas sensors and microprocessor families on the other. Experimental results on a prototype chip, realized in a 1.2 m CMOS technology, shows that the proposed IC represents a very low cost solution for efficient processing of the signal detected by a generic gas sensor.
3.	G. C. Cardinali, L. Dori, M. Fiorini, P. Maccagnani, and V. Liberali, "An integrated microstructure with temperature control for gas sensors", Proceedings of International Conference on Microelectronics , Nis, Serbia, pp. 515-518, 1997. Abstract - This paper describes an integrated microstructure used to control temperature in a gas sensor system. An innovative technological approach has been pursued to integrate gas sensors on silicon substrate, compatible with IC fabrication. A mixed analog-digital electronic interface controls temperature operation, to maximize the sensitivity to substances to be detected.
4.	B. Hök, A. Blückert, J. Löfving, Acoustic Gas Sensor with ppm Resolution, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.631-634.
5.	L. Zipser, F.Wächer and H. Franke, Acoustic Gas Sensors Using Airborne Sound Properties, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.647-650.
6.	Esteban Irène, Dejous Corinne, Rebiere Dominique, Pistre Jacques, Planade Roger, Lipskier François, Mass Sensitivity of SH-APM Sensors: Potentialities for Organophosphorous Vapors Detection, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.639-642.
7.	Catherine Bernou, Dominique Rebière, Jacques Pistré, New Chemical Sensors Using Microwave Resonators, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.635-638.
8.	S.V. Ryabtsev, Frequency-Dependent Capacitance of Surface-Doped Gas Sensors, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.93-95.
9.	Intelligent CO2 gas microsensors and PC based signal evaluation
10.	I. Puscasu, et al. Frequency Selective Surfaces Enable MEMS Gas Sensor, Presented at Materials Research Society, San Francisco, April 2002. MRS Symp. Proc. v.722, paper L3.4.
11.	Henryk Urzędniczok, Comparative Investigations of Two Kind of Electronic Circuits for Multichannel SAW-Based Gas Sensors, in Proceedings of XIX IMEKO World Congress, 6-11 September, 2009, Lisbon, Portugal, pp.2247-2251.
12.	A Proposal to Develop and Evaluate a Gas Sensor Network System for the Protection of Public Spaces (submitted to the Gemstone Program by the ChemSense team)
13.	Gas Sensors and Gas Metering: Applications and Markets, Pub Time: 2005/04
14.	Factors to Consider When Choosing a Natural Gas Moisture Analyzer (+ Gas Moisture Sensors Comparison table)
15.	Chris Von Benken, Next-Generation IR Gas Measurement, Sensors Magazine, October 1998
16.	Mark Stuart, Using Hydrophobic Membranes to Protect Gas Sensors, Sensors Magazine, May 1998
17.	Hans P. Zappe, Optical Gas Detection with Vertical Cavity Surface Emitting Lasers, Sensors Magazine, September 1999
18.	Brian R. Kinkade, Bringing Nondispersive IR Spectroscopic Gas Sensors to the Mass Market, Sensors Magazine, September 2000
19.	Joe Corsi, Area Monitoring of Hazardous Gases and Vapors, Sensors Magazine, January 2000
20.	Zvi Yaniv, Prabhu Soundarrajan, Achieving the Potential of Nano Gas Sensors, Sensors Magazine, September 2006, pp. 20-23
21.	Wolfgang Jessel, Planning and Designing Gas Detection Systems, Sensors Magazine, January 2002
22.	C. Hagleitner, A. Hierlemann, D. Lange, A. Kummer, N. Kerness, O. Brand and H. Baltes, Smart single-chip gas sensor microsystem, Nature 414, 293-296, 15 November 2001.
23.	Darold Wobschall, A Multi-Element Smart Gas Sensor with IEEE 1451 Protocol, Sensors Expo, June 2004.
24.	L. Bissi, A. Scorzoni, P. Placidi, L. Marrocchi, M. Bennati, S. Zampolli, L. Masini, I. Elmi, G.C. Cardinali, A Low-cost Distributed Measurement System based on Gas Smart Sensors for Environmental Monitoring in Proceedings of the 1^st International Conference on Sensing Technology, 21-23 November, 2005 Palmerston North, New Zealand, pp.301-306.
25.	F. Granstedt, B. Hök, U. Bjurman, M. Ekström, Y. Bäcklund, New CO₂ Sensor with High Resolution and Fast Response, in Proceedings of the 23^rd Annual IEEE EMBS International Conference, 25-28 October 2001, Istanbul, Turkey, pp.3100-3103
26.	J. Ward, R. MacKinnon, M. G. Guvench, A Computer Controlled Test System for Micro-Electro-Mechanical-Resonator (MEMS Resonator) Gas Sensors, in Proceedings of the 2008 American Society for Engineering Education Annual Conference & Exposition