Temperature dependences of fibre-optical sensors of mechanical values Tập 1 - Trang 3 pp. - 2002
A.D. Bialik, I.A. Voronin, A.M. Zlobin
In the work the temperature dependences of the fibre-optical sensor of mechanical values are explored. The examinations of influence of temperature changes on the transmitting characteristic of FOS were spend. As a sensing device the silicon membrane with width h1=40 micron with strong centre by width h3=200 micron was used. The measuring were spend at temperatures T1=20/spl deg/C, T2=60/spl deg/C...... hiện toàn bộ
#Temperature sensors #Temperature dependence #Optical fiber sensors #Mechanical sensors #Sensor phenomena and characterization #Face detection #Silicon #Optical sensors #Diodes #Sensor systems and applications
The XXI century as the century of microsystem technologies Tập 1 - Trang 10 pp. - 2002
V.A. Gridchin
This paper reports on the history of microelectromechanical devices and microsystem technologies. In the list of mostly important advantages of the XX century the appearance of new direction of technology have stayed almost unnoticed. In American literature, "the MEMS is the way making things" (Maluf, 2000). The "things" can be quite various. They can perceive the information (to make sensing) to ...... hiện toàn bộ
#Micromechanical devices #Microelectronics #Signal processing #Monitoring #Actuators #Intelligent sensors #Nuclear weapons #History #Mass production #Costs
Determination of the transport parameters in two-dimensional semiconductor systems and thin films by contactless microwave methods Tập 1 - Trang 75-76 - 2002
A.A. Kornilovich
The results of theoretical and experimental study of Shubnikov-de Haas effect and cyclotron resonance by microwave methods (/spl omega//2/spl pi/=37.8GHz) in AlGaAs/GaAs heterostructures are presented. The theoretical expressions for the determination of the carrier concentration and mobility are obtained. With these data, the transport parameters in two-dimensional systems and thin films can be d...... hiện toàn bộ
#Semiconductor thin films #Gallium arsenide #Microwave theory and techniques #Cyclotrons #Magnetic resonance #Power measurement #Electron optics #Optical films #Optical superlattices #Reflectivity
Experimental research of silicon flowmeters based on piezoresistance effect Tập 1 - Trang 3 pp. - 2002
V.A. Kolchuzhin, A.V. Nazin, A.V. Shaporin
The experimental results are presented for silicon flowmeter in a range of gas range 20 - 1000 1/h.
#Silicon #Piezoresistance #Piezoresistive devices #Bridge circuits #Pollution measurement #Resistors #Temperature dependence #Temperature distribution #Semiconductor device measurement #Heating
Design and optimization of the thermovision microscope Tập 1 - Trang 3 pp. - 2002
A.S. Larshin
Application of a receiving device on basis InAs, for a thermovision microscopy is studied. The device designed and made in an ISP of the Siberian Branch of the Russian Academy of Science, fundamental parameters: dimensionality 128/spl times/128, a step 50 microns, a range of lengths of waves 2.5-3 microns. For decrease of a background radiation from warm parts of a case of the device it is offered...... hiện toàn bộ
#Design optimization #Mirrors #Semiconductor devices #Testing #Temperature distribution #Cameras #Optical microscopy #Semiconductor device measurement #Thermal expansion #Optical imaging
Characterization of etched tracks and nanotubules by ion transmission spectrometry Tập 1 - Trang 4 pp. - 2002
N. Stolterfoht, D. Fink, A. Petrov, M. Muller, J. Vacik, J. Cervena, V. Hnatowicz, L.T. Chadderton, A.S. Berdinsky
Etched tracks have recently come into the focus of renewed interest, as it has turned out that they have a great future application potential. Therefore it is worthwhile to review the techniques for ion track characterization. Especially, ion transmission spectrometry (ITS) has recently emerged as a new tool for the rapid characterization of both the average diameter and the shape of etched tracks...... hiện toàn bộ
#Etching #Spectroscopy #Particle beams #Target tracking #Particle beam measurements #Physics #Scanning electron microscopy #Particle measurements #Polymers #Solid state circuits
New mechanism of nanosized InAs grains formation on porous silicon surface Tập 1 - Trang 2 pp. - 2002
I.A. Leonov, L.V. Sokolov, V.V. Preobrazhenskii, B.R. Semyagin, M.A. Putyato, N.D. Zakharov, S.I. Romanov, V.V. Volodin, A.V. Kolesnikov, O.P. Pchelyakov
Combination A/sup III/B/sup V/ direct-band semiconductor materials with silicon is the way to create light-emitting devices on silicon basis. In present paper was made an attempt to obtain InAs nanocrystals inside the porous silicon (PS) channels by means of molecular-beam epitaxy (MBE). InAs grows provided in A/sup III/B/sup V/ MBE reactor on silicon substrate with porous layer. Porous silicon su...... hiện toàn bộ
#Silicon #Substrates #Electrons #Molecular beam epitaxial growth #Crystalline materials #Raman scattering #Spectroscopy #X-ray diffraction #Geometry #Physics
Prospects of using Si/CaF/sub 2/ structures in pressure sensors Tập 1 - Trang 2 pp. - 2002
N.M. Shmakov
The present work examines Si/CaF/sub 2/ structures. Comparative analysis of existing structures of membrane tensoresistive sensors has shown the main obstacle in their developing: a problem of thickness control and reproducibility of an elastic element. It causes large diversity of strain sensor parameters, affects their sensitivity and linear range of transformation. However, SOF structures are v...... hiện toàn bộ
#Silicon #Biomembranes #Lattices #Calcium #Capacitive sensors #Sensor phenomena and characterization #Mechanical sensors #Reproducibility of results #Microelectronics #Temperature sensors
X-ray spectroscopic study of carbon produced at destruction of field cathodes from carbon nanotubes Tập 1 - Trang 2 pp. - 2002
A.V. Gusel'nikhov, P.A. Pruss, A.V. Okotrub
The opportunity for measurement of X-ray spectra with the help of carbon nanotubes cathode was realized. The K/spl alpha/-spectra of the carbon, which was transferred on the copper anode as a result of field emission from cathodes containing multiwall and single-wall carbon nanotubes, was obtained. The carbon materials were found to consist from graphite-like particles. The spectrum of carbon mate...... hiện toàn bộ
#Spectroscopy #Cathodes #Carbon nanotubes #Carbon dioxide #Anodes #X-ray imaging #Copper #Electrons #Dielectric materials #Fasteners