نتایج جستجو برای: admittance control

تعداد نتایج: 1330787  

Journal: :Australian Journal of Chemistry 1961

2017
Rouzbeh Amini Hamed Mojallali Roozbeh Izadi-Zamanabadi Jan Helbo

In this paper, measurements of admittance magnitude and phase are used to identify the complex values of equivalent circuit model for free stator of an ultrasonic motor. The model is used to evaluate the changes in the admittance and relative changes in the values of equivalent circuit elements. This method identifies the damages and categorizes them. The validity of the method is verified by u...

2008
M. Büttiker

The currents at the terminals of a mesoscopic conductor are evaluated in the presence of slowly oscillating potentials applied to the contacts of the sample. The need to find a charge and current conserving solution to this dynamic current partition problem is emphasized. We present results for the electro-chemical admittance describing the long range Coulomb interaction in a Hartree approach. ...

Journal: :Journal of Physics of the Earth 1976

2000
Takafumi FUJIMOTO Kazumasa TANAKA Mitsuo TAGUCHI

The wall admittance of an arbitrarily shaped microstrip antenna is generally formulated. As examples, elliptical microstrip antennas with and without a circular slot are calculated. The wall admittance is determined by the spectral domain analysis in order to consider the effect of the dielectric substrate. The electromagnetic fields within the cavity are expanded in terms of the eigenfunctions...

2008
Daniel Friedan

This is the continuation of cond-mat/0505084. Elementary formulas are derived for the flow of entropy through a circuit junction in a near-critical quantum circuit, based on the structure of the energy-momentum tensor at the junction. The entropic admittance of a near-critical junction in a bulk-critical circuit is expressed in terms of commutators of the chiral entropy currents. The entropic a...

2015
Anke FROEBEL Ralf VICK

This paper focuses on a method for modelling small nonlinear loads by means of frequency coupling admittance matrices. Based on measurements the used technique delivers equivalent Norton admittance matrices of the actual non-linear device. Various types of LED lamps serve as test objects. It is shown how the absorbed currents vary in dependency of amplitude and phase of voltage harmonic distort...

2017
Mikaela Ranta Marko Hinkkanen Jorma Luomi

Due to magnetic saturation, the small-signal admittance of an induction motor is dependent on the direction of the excitation signal. The angle-dependence of the admittance can be used in the estimation of the flux angle, and it should be taken into account when identifying motor parameters. In this paper, the small-signal admittance of a 2.2-kW induction motor is measured at different excitati...

Journal: :IEICE Transactions 2005
Junji Kawata Yuichi Tanji Yoshifumi Nishio Akio Ushida

In this paper, we propose a new algorithm for calculating the exact poles of the admittance matrix of RLCG interconnects. After choosing dominant poles and corresponding residues, each element of the exact admittance matrix is approximated by partial fraction. A procedure to obtain the residues that guarantee the passivity is also provided, based on experimental studies. In the procedure the re...

Journal: :The Journal of the Acoustical Society of America 1953

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