搜索结果: 1-13 共查到“电子科学与技术 experimental”相关记录13条 . 查询时间(0.066 秒)
Experimental investigation of shaft transducerless speed and position control of ac induction and interior permanent magnet motors
IPM Motor induction motor sensorless vector control speed and position control high frequency signal injection
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2010/10/12
In order to drive AC motors with high efficiency and high motion performance, and to provide accurate speed/position control, motor shaft speed and/or position feedback is required. For this purpose, ...
A new chaotic attractor from general Lorenz system family and its electronic experimental implementation
Chaotic systems chaotic circuits chaotic attractors chaotic oscillators
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2010/10/12
This article introduces a novel three-dimensional continuous autonomous chaotic system with six terms and two quadratic nonlinearities. The new system contains two variational parameters and exhibits ...
Experimental studies of a scaled-down TSR-based SVC and TCR-based SVC prototype for voltage regulation and compensation
Flexible AC Transmission Systems (FACTS) Thyristor Switched Reactor-Based Static VAr Compensator Voltage Regulation
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2010/10/12
In this paper, prototypes of two shunt flexible AC transmission system (FACTS) devices, a thyristor switched reactor (TSR)-based static VAr compensator (SVC) and a thyristor controlled reactor (TCR)-b...
Numerical and Experimental Investigation of a Supersonic Flow Field around Solid Fuel on an Inclined Flat Plate
Supersonic Flow Field Solid Fuel Inclined Flat Plate
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2009/9/4
This research adopts a shock tube 16 meters long and with a 9 cm bore to create a supersonic, high-temperature, and high-pressure flowfield to observe the gasification and ignition of HTPB solid fuel ...
Experimental Observation of Oscillating Wave Propagation on Switch Lines for Generation of Continuous Electromagnetic Waves
Oscillating Wave Propagation Switch Lines Continuous Electromagnetic Waves
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2009/9/4
We report the experimental observation of the generation of continuous electrical waves in a switch line, which is a transmission line periodically loaded with electronic switches. The oscillating mot...
Bipolar Disk Microstrip Antenna. Theoretical and Experimental Considerations
antenna microstrip radiation
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2010/1/11
The paper presents the main theoretical and practical aspects regarding
wideband disk microstrip antenna construction. There are presented electromagnetically
parameters of the antenna, their shape,...
Return Loss Analysis and Experimental Study of Semiconductor Optical Amplifiers
SOA Return loss Residual reflectivity External cavity.
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2010/7/16
Return loss of single semiconductor optical amplifier (SOA) module has been analysed in the
paper. The external cavity formed by residual reflectivity of coupling pigtail fibers is the obstacle to in...
Iono-Covalent Character of the Metal–Oxygen Bonds in Oxides: A Comparison of Experimental and Theoretical Data
Iono-Covalent Character the Metal–Oxygen Bonds Oxides Experimental Data Theoretical Data
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2010/12/7
The aim of this paper is to review the actual data on the chemical bond in binary and mixed oxides. The electronegativity (χM) and the acidity pa scales are the most significant semi-empirical concept...
Experimental Studies of New GaAs Metal/Insulator/p-n+ Switches Using Low Temperature Oxide
Negative differential resistance (NDR) Liquid phase chemical-enhanced oxide (LPECO)
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2010/12/7
First observation of switching behavior is reported in GaAs metal-insulator-p-n+ structure, where the thin insulator is grown at low temperature by a liquid phase chemical-enhanced oxide (LPECO) with ...
Electrostatic Repulsion Between Highly Injecting Metals: An Experimental Investigation
Electrostatic Repulsion Injecting Metals
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2010/12/10
This paper is an experimental investigation of the major implications brought in the crossing resistance of mechanically contacted metals when operating in the high electronic injection regime, i.e., ...
An Experimental Study of Curved Rectangular Microstrip Antenna in Simulated Plasma Medium
Curved Rectangular Microstrip Antenna Plasma Medium
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2010/12/13
The effect of plasma on the radiation characteristics of curved rectangular microstrip antenna is studied by means of a new plasma simulation technique. Unlike previous techniques [1,2], a relative in...
On Experimental Data of the TCR of TFRs and Their Relation to Theoretical Models of Conduction Mechanism
the TCR TFRs Conduction Mechanism
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2010/12/23
Any theory of electrical conduction in TFRs encounters mainly two problems: (i) explanation of the dependence of R□ on properties of conducting component (volume fraction, grain size, resistivity), (i...
Experimental and Theoretical Characterization of Thick and Thin Films for Microwave Uses on 99.6% Alumina Substrates
Thick and Thin Films Microwave Uses 99.6% Alumina Substrates
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2010/12/27
In a previous paper, we showed, with a microwave quality factor (Q) measurement, that in the X band and with alumina substrates, thick film losses are not worse than thin film losses when the inks are...