Frequency Sweep
Incipient Failure Detection in Power Transformers through Frequency Sweep Response
... This fault was originated when an atmospheric discharge onto the feeding transmission line fired the differential protection which damaged the transformer tap changer. The peculiarity of this fault was that the damage ...
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Estimation and compensation of frequency sweep nonlinearity in FMCW radar
... As an example to visualize the operation of the PEC algorithm in the time-frequency domain, Figure 11 shows (upper figure) a transmitted linear FMCW signal which is perturbed by triangle-shaped frequency ...
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Relative Frequency Calibration for Fast Frequency Sweep Microwave Reflectometry
... reference sweep with a period of (T = 1 ...reference sweep, while closed symbols represent the data using different reference ...slowly sweep) fre- quency is ...fast sweep measurements ...
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Evaluation of Rheometry Amplitude Sweep Cross Over Point as an Index of Flexibility for HA Fillers
... In Figure 3 the strain value at the G’’/G’ cross-over point (xStrain) in the am- plitude sweep is shown versus the firmness (G’ from the frequency sweep) for a number of OBT and NASHA products. The ...
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SFRA, Fault
... the frequency sweep test bases its analysis on the fact that the internal structure of a transformer represents a set of multilayer RLC circuits, which reflect inductive and capacitive couplings between ...
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THE S TU DYOF S TR UC TU RE - DE P E ND E NT P R OP E R TI E S OF THI N M AG NE TI C F I L MS A T M I CROW A V E S FIELD - D OMA I N R E S ONA NC ETE CHNI QUE S . N. S t a r os t e n k o a n d K. N. Roz a n ov
... the sweep-frequency measurements of permittivity/permeability spectra of laminated samples with the help of vector network analysers (SF-VNA technique) and the conventional ferromagnetic resonance fixed ...
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Effects of xanthan gum on the rheological properties of soy protein dispersion
... In frequency sweep test, the addition of XG significantly changed the frequency dependence, especially the trend of ...and frequency became ...of frequency flattened out with the ...
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A Vegetable Oil-Based Organogel for use in pH-Mediated Drug Delivery
... amplitude sweep at a constant angular frequency ...A frequency sweep test (Fig 3b) was conducted within the limits of the LVER of the organogels and further confirmed that the system has an ...
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Numerical Modeling of Dynamically Excited Non-Resonant Piezoelectric Sensor
... The frequency sweep of the non-resonant sensor is obtained by simulation for the following condition: input voltage of 5V is applied to the top face of the actuator element and bottom surface is ...
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Localisation of defects with time and frequency measurements using pulsed arrays
... the frequency dependence of the directivity also applies in reception, meaning that any non-backscattered signals are partially fi ...the frequency of the scattered wave and the angle of propagation of the ...
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Nonlinear, Coupled, and Parametric Nanoelectromechanical Systems
... the frequency shift ...parametric frequency sweep the quality factor of the first mode increases relative to that one of the second ...the frequency of the left peak to drop, and the ...
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Rheological and Thermal Behavior of High Density Polyethylene (HDPE) at Different Temperatures
... The results indicate that the HDPE sample, when subjected to a temperature of 230˚C, for a period greatly superior than that for the OIT, may undergo degradation by chain scission, once the presence of carbonyl is de- ...
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Rheological non Newtonian behaviour of ethylene glycol based Fe2O3 nanofluids
... the frequency sweep show that the damping factor presents a maximum against frequency, corresponding to a continuous evolution with concentra- tion from viscous to elastic ...
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Investigating the Effect of Jamming Attacks on Wireless LANS
... explain frequency sweep jammer working and how it affects the performance of a network using OPNET simulation ...with frequency sweep jammer and to determine whether switching channels can ...
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Synthesis and Rheological Characterisation of the Natural gum Polysaccharide and Acrylic acid based hydrogels
... of frequency G′>G′′ thus, the systems displayed the polymer like viscoelasticity properties ...2, Frequency sweep results indicated that as concentration of cross linker with particular limit ...
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Fast Wideband Analysis of Antennas Using Ie-PO Hybrid Method and the Best Uniform Approximation
... fast frequency sweep, such as impedance matrix interpolation, asymptotic waveform evaluation (AWE) [14–18], model-based parameter estimation (MBPE) [19] and the best uniform approximation technique ...wide ...
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Rheological and Sensory Properties of Four Kinds of Dark Chocolates
... Rheological properties of chocolate are important in manufacturing process for obtaining high-quality prod- ucts with well-defined texture [8]. Chocolates with high viscosity have a pasty feel, persisting in the mouth ...
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PN 072 0228 Apple Service Technical Procedures Macintosh Family Volume One Mar 1992 pdf
... Power/Sweep Board 110 V, Rev A Macintosh Classic Power/Sweep Board 220 V, Rev A Macintosh Classic Power/Sweep Board 110 V, Rev B Macintosh Classic or Classic II Power/Sweep Board 220 V, [r] ...
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Evaluation Damping Performance for Hydrostatic Bearing Film by Damping Ratio Scaling
... The actual measured spectrum response between the first resonance peak and the zero frequency is the fundamental frequency mode region. The dimensionless amplitude and phase angle of the region simulation ...
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Modulation In Frequency of A Laser Diode With A Low Power Bipolar Transistor
... Abstract: - For industrial applications is necessary that the test systems are portable, for example measuring the concentration of pollutants in water or characterization of processes that occur in plants or other ...
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