Results 271 to 280 of about 139,964 (303)

Vapor phase SAW immunoassay sensors

Proceedings of IEEE Sensors, 2003
In this paper, we present the results of a series of experiments demonstrating real-time vapor phase detection of cocaine molecules using immunosensors based on surface acoustic wave (SAW) resonators.
D.D. Stubbs, null Sang-Hun Lee, W.D. Hunt   +2 more
openaire   +1 more source

Vapor phase SAW immunoassay sensors

2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263), 2002
In this paper we present the results of a series of experiments on vapor phase SAW biosensors. For these experiments the sensor component was a ST-X Quartz resonator with a center frequency of approximately 250MHz. Antibodies were attached to the electrodes on the device surface via a protein-A crosslinker.
D.D. Stubbs, W.D. Hunt, S.H. Lee, D.F. Doyle   +3 more
openaire   +1 more source

Novel structure SAW mass sensor

Proceedings of 2005 International Conference on Intelligent Sensing and Information Processing, 2005., 2005
Y-type structure of dual delay line mass sensor with slanting metal array reflectors was developed based on multi-strip coupler. The novel structure can not only avoid the bulk wave efficiently, but also reduce the triple-transit-interference (TTI) and multiple reflections. P-matrix was used to analyze the sensor properties.
null Yang Ying, null Zhu Da-zhong
openaire   +1 more source

Gas chromatography utilizing SAW sensors

IEEE 1991 Ultrasonics Symposium, 2002
The performance of a high-speed (10-15-s) gas chromatography system for the detection of illicit materials is described. The system is based on an isothermal capillary column gas chromatograph (GC) and a 500-MHz surface acoustic wave (SAW) crystal decoder.
G. Watson, W. Horton, E. Staples
openaire   +1 more source

Surface-acoustic-wave (SAW) flow sensor

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1991
The use of a surface-acoustic-wave (SAW) device to measure the rate of gas flow is described. A SAW oscillator heated to a suitable temperature above ambient is placed in the path of a flowing gas. Convective cooling caused by the gas flow results in a change in the oscillator frequency.
openaire   +2 more sources

An integrated SAW voltage sensor

IEEE 1988 Ultrasonics Symposium Proceedings., 2003
An integrated SAW (surface acoustic wave) voltage sensor is presented, based on the SAW oscillator system, with features such as high sensitivity, broad measuring range, high input impedance, and direct voltage-to-frequency conversion. The dual oscillator system possesses the additional advantage of temperature compensation.
M.J. Vellekoop, C.C.G. Visser
openaire   +1 more source

Carbon nanotube-based SAW sensors

2013 Spanish Conference on Electron Devices, 2013
Surface acoustic wave (SAW) gas sensors based on the use of carbon nanotube (CNT) networks as sensitive layers have been investigated for the detection of atmospheric gas pollutants: volatile organic compounds (VOCs), NO2, CO, and H2 . SAW sensor configuration consists of a delay line made on a piezoelectric substrate (ST -X cut quartz) and a sensitive
I Sayago, M J Fernandez, J L Fontecha, M C Horrillo, E Terrado, A Seral-Ascaso, E Munoz   +6 more
openaire   +1 more source

SAW Graphic Sensor

1978 Ultrasonics Symposium, 1978
E. Dieulesaint, D. Royer, B. Thiriet, J.C. Ballegeer   +3 more
openaire   +1 more source

SAW Oscillator Pressure Sensors

1975 Ultrasonics Symposium, 1975
T.M. Reeder, D.E. Cullen, M. Gilden
openaire   +1 more source

High performance langasite based SAW NO2 gas sensor using 2D g-C3N4@TiO2 hybrid nanocomposite

Journal of Hazardous Materials, 2022
Kedhareswara Sairam Pasupuleti, Maddaka Reddeppa, Na-Hyun Bak   +2 more
exaly