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Wyświetlanie 1-15 z 22
Tytuł:
Study on the Rayleigh Hysteresis Model and its Applicability in Modeling Magnetic Hysteresis Phenomenon in Ferromagnetic Materials
Autorzy:
Kachniarz, M.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1030243.pdf
Data publikacji:
2017-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.-m
75.60.-d
75.50.Gg
75.50.Cc
75.60.Ej
07.05.Tp
Opis:
The following paper presents the basis of a Rayleigh magnetic hysteresis model and the examples of its application for modeling the magnetic characteristics of ferromagnetic materials: ferrites and steels. The presented model allows one to simulate the shape of a magnetic hysteresis loop of the material for the given value of the magnetizing field in the so-called Rayleigh region, as well as to calculate basic magnetic parameters of the material like coercive field, magnetic remanence, and power loss. Four different ferromagnetic materials (two ferrites and two alloy steels) were chosen for the investigation. Each material was investigated within the range of low magnetizing fields, corresponding to the Rayleigh region. On the basis of obtained results, modeling of magnetic characteristics of the investigated materials was performed. Moreover, the range of magnetizing field where the Rayleigh model can be applied for these materials was investigated based on correlation coefficient between experimental results and modeling.
Źródło:
Acta Physica Polonica A; 2017, 131, 5; 1244-1249
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Satellites Orientation Method using a Torque Magnetic Drive
Autorzy:
Korobiichuk, I.
Kachniarz, M.
Nowicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/1030758.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.55.Ge
04.30.Tv
07.05.Rm
07.07.Df
Opis:
Small values of external perturbation forces made it possible to use a torque magnetic drive as a control system. Today, satellite orientation systems use pulsed-type algorithm for discharge of an angular momentum accumulator. The feasibility of using other algorithms (continuous, continuous-pulsed and algorithm of torque magnetic drive operation using `forecast' models of accumulated angular momentum and geomagnetic field) is not covered and not examined, although each has certain advantages for certain types of satellites and their conditions of operation in space. The article highlights satellites operating conditions in space, considers satellites orientation method using a torque magnetic drive and substantiates the necessity of satellite motion simulation with further establishing a technique for evaluation of orientation system given the effect of permanent magnetic and gravitational fields, the type of discharge of accumulated angular momentum, the height of trajectory and the nature of random perturbations.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 722-724
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Active LR Integrator Circuit with Ferrite Core
Autorzy:
Gazda, P.
Nowicki, M.
Kachniarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1030877.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
41.20.Gz
85.70.Ay
85.70.Ge
Opis:
The paper presents the idea of active LR integrator circuit based on ferrite core. The LR topology, in contrast to contemporary RC, allow for drift-free operation of the integrator. Presented circuit is intended as main component of continuous operation fluxmeters and magnetoelastic transducers, especially working with low frequency signals. Critical component for proper frequency range and low signal distortion is the core material, which should allow for close-to-ideal inductance in the circuit. Presented simulation, measurement results, and total harmonic distortion analysis show that the proposed circuit works correctly.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1041-1044
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature error of Hall-effect and magnetoresistive commercial magnetometers
Autorzy:
Nowicki, M.
Kachniarz, M.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/141287.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
magnetic field measurement
magnetometers
Hall-effect
magnetoresistive
temperature error
Opis:
The paper presents a special measurement system for investigation of temperature influence on the indication of commercially available sensors of the magnetic field. Utilizing the developed system, several magnetoresistive and Hall-effect sensors were investigated within the temperature range from –30°C to 70°C. The obtained results indicate that sensitivity of most of the investigated sensors is unaffected, except the basic magnetoresistive device. However, Hall-effect sensors exhibit considerable temperature drift, regardless of the manufacturer.
Źródło:
Archives of Electrical Engineering; 2017, 66, 3; 625-630
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Influence on the Functional Properties of Inductive Components with Mn-Zn Ferrite Cores
Autorzy:
Jackiewicz, D.
Kachniarz, M.
Bieńkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1030884.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
84.30.Jc
75.47.Lx
75.50.Gg
Opis:
The paper presents the results of investigation of the temperature influence on the inductance and power losses in ferrite cores. Such effect can significantly influence the utility parameters of electronic devices, particularly in precision equipment. For example slight parameter change in this type of components in measuring devices can cause significant changes in output parameters. It is also equally important for mobile devices where increase of losses can limit the duration of service. Special measurement system composed of hysteresis graph, cryostat and PC was utilized to perform the experiment. The cores used during the investigation had closed magnetic circuit. In order to perform measurements of magnetic properties of the material, two sets of windings (magnetizing and sensing) were made on each core. The cores were placed in a cryostat, which was used to set the temperature value within the range from -20 to +50°C. The magnetic properties were measured by the hysteresis graph, to assess the influence of the temperature on the functional parameters.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1038-1040
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolated DC and AC Current Amplifier with Magnetic Field Sensor in Loop and Amorphous Ring Core
Autorzy:
Petruk, O.
Kachniarz, M.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1032742.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
85.75.Ss
07.55.Ge
85.30.Fg
Opis:
This paper presents innovative isolated DC and AC current amplifier containing magnetic field sensor in the feedback loop. The amorphous ring core with an air gap is utilized as a part of the galvanic isolation separating input and output currents. In the paper outline of the amplifier is presented. The printed circuit board project was developed and electronic circuit of the amplifier was manufactured. The developed device was investigated with DC and AC current and the results are presented in the paper. Results indicate usefulness of the developed device in described application.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 1174-1176
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Magnetoelastic Properties of $Ni_{0.36}Zn_{0.64}Fe_2O_4$ Ferrite Material under Low Magnetizing Fields Corresponding to Rayleigh Region
Autorzy:
Kachniarz, M.
Bieńkowski, A.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1398307.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Gg
75.30.-m
07.55.-w
75.80.+q
Opis:
The following paper presents original results of study on the magnetoelastic properties of Ni-Zn (nickel-zinc) ferrite material under low magnetizing fields, corresponding to the so-called Rayleigh region. The investigated $Ni_{0.36}Zn_{0.64}Fe_2O_4$ material was formed into frame-shape sample allowing to obtain uniform stress distribution. Special digitally controlled measurement system was utilized to perform investigation. Obtained results are presented in the paper. On the basis of them mathematical description of magnetoelastic effect in investigated material was developed as an extend of the Rayleigh model of magnetic hysteresis. Comparison of the experimental and modeling results indicates that the developed model is correct.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 1066-1068
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Active LR Integrator Circuit for Drift-Free Magnetoelastic Transducer
Autorzy:
Gazda, P.
Nowicki, M.
Kachniarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1030439.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.55.-w
75.50.Kj
75.80.+q
Opis:
Current integrator systems usually use active RC integrator circuits. Crucial dificulty associated with this analogue system is the integrator drift. The following paper presents the idea of the active integrator circuit based on inductive and resistive components. This concept allows to eliminate the time drift of the circuit, which is undesired phenomenon resulting from capacitive components working in the traditional negative feedback loop. The SPICE simulations were performed to validate the presented idea. Then, prototype circuit with discrete components was tested. Inductors were based on nanocrystalline and air cores. The developed solution was tested as magnetoelastic sensors transducer, to confirm the ability for long-term, continuous, drift-free, integrator circuit operation. The results were compared with traditional, RC circuit with automatic drift compensation.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 745-747
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Novel Method of Offset Voltage Minimization in Hall-Effect Sensor
Autorzy:
Petruk, O.
Kachniarz, M.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1032752.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.55.Ge
85.75.Ss
85.30.Fg
02.70.Dh
Opis:
The paper presents numerical model and validation of new methodology of offset voltage minimization in the Hall-effect sensors. Model of the Hall-effect sensor with multiple electric pins was developed. Mathematical equations used for calculation of electric potential difference were formulated. Simulations were carried out using finite elements method in ELMER FEM software. Performed investigation of actual parameters of newly designed Hall-effect sensor confirms effectiveness of the described method.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 1177-1179
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New Methodology of Testing the Stress Dependence of Magnetic Hysteresis loop of the L17HMF Heat Resistant Steel Casting
Autorzy:
Jackiewicz, D.
Szewczyk, R.
Bienkowski, A.
Kachniarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/384819.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
nondestructive testing
magnetoelasticity
Opis:
This paper presents the results of investigation on the tensile stresses dependence of magnetic characteristics of the L17HMF steel casting. To ensure uniform stress distribution in the sample for this investigation and the closed magnetic circuit, the frame-shaped samples were used. This is very important because it provides results independent of the shape and dimensions of the sample. On the columns of the sample both sensing and magnetizing windings were made. It is highly recommended to wound magnetizing and sensing windings on both columns. Due to the specialized force reversing system, compressive force generates the uniform tensile stresses in the sample. Magnetic characteristics are measured under these stresses by digitally controlled hysteresis graph. On the base of results of measurements the magnetoelastic characteristics of L17HMF steel casting were determined. Determined this characteristic is necessary to developed nondestructive testing method for monitoring of industrial and energetic constructions with elements made by L17HMF steel casting.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2015, 9, 2; 52-55
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetoelastic Villari Effect in Ferrite Materials for Force and Stress Sensors Working in Low Magnetizing Field Region
Autorzy:
Kachniarz, M.
Bieńkowski, A.
Salach, J.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1030958.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.-m
75.60.-d
75.50.Gg
75.80.+q
07.10.Lw
Opis:
The following paper presents the original results of investigation on the magnetoelastic properties of ferrite materials magnetized in low field region, which could be utilized in development of force and stress sensors. The objects of investigation were two ferrite materials (manganese-zinc Mn-Zn and nickel-zinc Ni-Zn). The magnetoelastic characteristics of the materials were investigated with the special measurement system, allowing measurement of magnetic parameters of the ferrite materials magnetized with low fields under the influence of the compressive stress. The obtained results indicate that there is a strong correlation between the magnetic properties of the material in low magnetizing field region, and applied mechanical stress, which allows development of the magnetoelastic stress or force sensor with ferrite core working in low magnetizing field region.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1056-1059
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling the Influence of Stresses on Magnetic Characteristics of the Elements of the Truss Using Extended Jiles-Atherton Model
Autorzy:
Jackiewicz, D.
Szewczyk, R.
Kachniarz, M.
Biedrzycki, R.
Powiązania:
https://bibliotekanauki.pl/articles/1032148.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.60.Ej
75.85.+t
81.70.-q
Opis:
Steel trusses structures are commonly used in civil engineering. Their mechanical parameters, especially the durability, are critical, and often human life depends on it. Therefore it is very important to monitor the critical elements of the truss. For this purpose magnetoelastic method of measurement may be used. It is a method having several advantages over other methods, particularly because of use of elements which are already parts of the structure. The study of structural elements have already been conducted. However, to take advantage of the magnetoelastic characteristics measurement to assess the state of stress, one should have a model of the influence of stress on magnetic properties. The influence of stresses on hysteresis loops was modelled with the extended Jiles-Atherton model. The obtained results of the modelling are consistent with the experimental measurements results. The results of modelling create new possibilities of explanation of the physical phenomena connected with magnetization of the magnetic materials under stresses, which is especially important for the assessment of the state of the constructional steel during its exploitation in industrial conditions.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 1189-1191
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of Influence of Hypersonic Conditions on Gyroscopic Inertial Navigation Sensor Suspension
Autorzy:
Korobiichuk, I.
Karachun, V.
Mel'nick, V.
Kachniarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/221303.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hypersonic technologies
gimbals
oscillation modes
acoustic transparency
navigation system
Opis:
The upcoming hypersonic technologies pose a difficult task for air navigation systems. The article presents a designed model of elastic interaction of penetrating acoustic radiation with flat isotropic suspension elements of an inertial navigation sensor in the operational conditions of hypersonic flight. It has been shown that the acoustic transparency effect in the form of a spatial-frequency resonance becomes possible with simultaneous manifestation of the wave coincidence condition in the acoustic field and equality of the natural oscillation frequency of a finite-size plate and a forced oscillation frequency of an infinite plate. The effect can lead to additional measurement errors of the navigation system. Using the model, the worst and best case suspension oscillation frequencies can be determined, which will help during the design of a navigation system.
Źródło:
Metrology and Measurement Systems; 2017, 24, 2; 357-368
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods and Ways of Piezoelectric Accelerometers Fastening on the Objects of Research
Autorzy:
Korobiichuk, I.
Bezvesilna, O.
Kachniarz, M.
Koshovyj, M.
Kvasnikov, V.
Powiązania:
https://bibliotekanauki.pl/articles/1030986.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.20.F-
62.30.+d
63.20.dd
77.65.Fs
Opis:
Methods and ways of piezoelectric measuring converters fastening on the objects of research are considered in the article. Piezoelectric accelerometers are sensors of a contact type, they have a mechanical contact with the object of research. The peculiarity of such connection is the fact that the object immediately has an influence on the output signal of the accelerometer. Therefore, study of methods and ways of piezoelectric accelerometers fastening on the objects of research is, undoubtedly, topical. Their advantages and disadvantages are specified. Recommendations about the choice of the way of piezoelectric measuring converters fastening on the objects of research depending on the operating conditions are made.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1112-1115
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetoelastic Villari Effect in Structural Steel Magnetized in the Rayleigh Region
Autorzy:
Kachniarz, M.
Kołakowska, K.
Salach, J.
Szewczyk, R.
Nowak, P.
Powiązania:
https://bibliotekanauki.pl/articles/1030824.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.-m
75.60.-d
75.50.Cc
75.80.+q
07.10.Lw
Opis:
The following paper presents the results of investigation on the magnetoelastic Villari effect in structural steel magnetized in the so-called Rayleigh region, which corresponds to relatively low magnetizing fields, much lower than coercive field. Two grades of structural steel were investigated during the performed measurements. Obtained results indicate significant correlation between applied mechanical stress and magnetic properties of the investigated materials.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 660-662
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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