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■Electric field analysis software (frequency response) VOLTjω

■Electric field analysis software (frequency response) VOLTjω

Frequency response electric field analysis software using the finite element method.

Perform static analysis and frequency response analysis Electric field analysis software using the finite element method (Electric field simulator) ■□■Features■□■ ■Since it is integrated with the PHOTO series dedicated pre- and post-processing, data creation, analysis, and result processing can be performed as a continuous operation. ■It is integrated with other PHOTO series modules, allowing for easy coupled analysis, such as obtaining temperature distribution from heat generation determined by electromagnetic field analysis. ■Using the ICCG method, calculations are fast, enabling analysis on a personal computer. ■Since it uses the finite element method, the solutions are stable, making it safe for beginners to use.

  • Magnetic field analysis/electromagnetic wave analysis
  • Analysis Services
  • Contract Analysis

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[Analysis Case] Electromagnetic Field Analysis of Polyethylene-Filled Waveguides

[Analysis Case] Electromagnetic Field Analysis of Polyethylene-Filled Waveguides

Here is an example of a comparison between the obtained reflection coefficient from the analysis results and the theoretical values!

When a dielectric such as polyethylene is filled in a rectangular waveguide, reflections of electromagnetic waves occur at the air interface. Considering a system where polyethylene is filled in part of a rectangular waveguide of standard WRJ-5, the distribution of electromagnetic waves was analyzed using the finite element method. As a result, it was found that the absolute value of the electric field on the polyethylene side is constant, indicating that no reflection occurs at the output surface (the impedance boundary is correctly set). [Case Summary] ■ Analysis Module: PHOTO-WAVEjω ■ Analysis Results - It is evident that no reflection occurs at the output surface since the absolute value of the electric field on the polyethylene side is constant (the impedance boundary is correctly set). - In the calculation of the scattering matrix, the characteristic impedances of air and polyethylene were set as ZAir = 279.052Ω and ZPE = 156.987Ω. *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Input Impedance Analysis of a Dipole Antenna

[Analysis Case] Input Impedance Analysis of a Dipole Antenna

Set impedance boundaries at the model boundary! Here are examples compared with the results of the moment method.

We will introduce a case study analyzing the input impedance of a dipole antenna using the electromagnetic wave analysis software "PHOTO-WAVEjω." The antenna has a diameter of 1mm, a length of 60.5mm, and a gap of 0.5mm. An impedance boundary was set at the model boundary. The antenna was treated as a perfect conductor. 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Conditions - An impedance boundary was set at the model boundary - The antenna was treated as a perfect conductor *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Case Study] Photonic Crystal Optical Waveguide (Electromagnetic Field Analysis)

[Case Study] Photonic Crystal Optical Waveguide (Electromagnetic Field Analysis)

Conducting electromagnetic wave analysis using the finite element method! Introducing a case study of an L-shaped optical waveguide.

Photonic crystals are structures that can control light by periodically arranging multiple dielectrics and other materials. Electromagnetic wave analysis was conducted using the finite element method. The optical waveguide consists of periodically arranged dielectric rods, and light passes through areas where there are no dielectric rods. The radius of the rods, r, and the period of the rods, a, are set as r = 0.18a, and the electric field component parallel to the dielectric rods was input. 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Conditions - The radius of the rods, r, and the period of the rods, a, are set as r = 0.18a (Wavelength λ: 1.55μm, Refractive index n: 3.4) - Impedance boundary conditions are set on the sides - The electric field component parallel to the dielectric rods was input *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Analysis using automatic load condition setting function (TE wave, TM wave)

[Analysis Case] Analysis using automatic load condition setting function (TE wave, TM wave)

Specify a set of nodes that are on the same plane! Calculate the electric field at each node and set it as the loading condition.

In versions prior to Ver8.0 of "PHOTO-WAVEjω," it was necessary to set the electric field (3 components) at nodes or the current density (3 components) at elements as load conditions. Since Ver8.2, a feature has been added to automatically set these load conditions. Users can specify a set of nodes that are on the same plane, and by simply inputting a few parameters, the program calculates the electric field at each node and sets it as the load condition. [Issues] ■ In versions prior to Ver8.0 of "PHOTO-WAVEjω," it was necessary to set the electric field at nodes or the current density at elements as load conditions. ■ When setting the electric field in a rectangular waveguide, it was necessary to set each electric field component from the coordinates of each node, which was a cumbersome task for users. *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Magnetic Field Analysis of Gear Sensors

[Analysis Case] Magnetic Field Analysis of Gear Sensors

Check how the magnetic field distribution changes when the electrical conductivity, rotation speed, and position of the gears are altered!

When a magnet is brought close to a gear made of a magnetic material, the distribution of the surrounding magnetic field changes depending on the position and rotation speed of the gear. A permanent magnet was placed near the rotating gear, and the changes in the surrounding magnetic field were analyzed. As a result, in the comparison of magnetic flux density due to rotation speed, the gear rotating at high speed exhibited a larger magnetic field along the edge of the gear, and a magnetic field due to eddy currents remained even when it was away from the magnet. 【Case Summary】 ■ Analysis Type: 3D Nonlinear Transient Magnetic Field Analysis ■ Analysis Module: PHOTO-EDDY *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Magnetic Field Analysis of a Transformer

[Analysis Case] Magnetic Field Analysis of a Transformer

Finite element division of the iron core and primary/secondary windings! A node current of 1A at 1000Hz was applied.

This is an introduction to a case study analyzing the magnetic flux density distribution, self-inductance, and mutual inductance of a transformer composed of primary and secondary windings and a magnetic circuit (iron core) when excited. The software "PHOTO-EDDYTMjω" was used. A current of 1A at a frequency of 1000Hz was applied to the primary and secondary windings. Additionally, the number of nodes was 18,118, and the number of elements was 13,648, with the shape modeled in three dimensions as a full model. [Case Overview] ■ Software Used: PHOTO-EDDYTMjω ■ Analysis Conditions - Model using iron core and primary/secondary windings - Applied a node current of 1A at 1000Hz to the primary and secondary windings *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Inductance Analysis of a Solenoid with a Circular Core

[Analysis Case] Inductance Analysis of a Solenoid with a Circular Core

The error in the analysis result is -1.69%! Analysis is possible with a conductor-only mesh, without the need for an air mesh.

We will introduce the analysis results of current distribution (real part and imaginary part) and self-inductance. The mesh scale consists of 11,200 elements and 15,088 nodes. Using the magnetic field analysis module "PHOTO-EDDYTMjω," it is possible to analyze with a mesh of only conductors, eliminating the need for an air mesh. 【Case Overview】 ■ Software Used: PHOTO-EDDYTMjω ■ Analysis Conditions ・ Current Value: 1[A] ・ Frequency: 1000[Hz] *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Inductance Analysis Between Conductors

[Analysis Case] Inductance Analysis Between Conductors

Analyze the eddy currents flowing between two conductors! Using the frequency response magnetic field analysis software "PHOTO-EDDYTMjω".

We will introduce the analysis results of eddy current distribution, self-inductance, and mutual inductance. The analysis was conducted for three cases: only conductor 1, only conductor 2, and both conductors 1 and 2 carrying current. The mesh scale consists of 3,200 elements and 4,800 nodes. Using the magnetic field analysis module "PHOTO-EDDYTMjω," it is possible to perform the analysis with a mesh of only the conductors, eliminating the need for air mesh. [Case Overview] ■ Software Used: PHOTO-EDDYTMjω ■ Analysis Conditions - Current Value: 1[A] - Material Properties: Relative Permeability 1.0, Electrical Conductivity 1.0×10^6[S/m] - Frequency: 1.0[kHz] *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Electromagnetic Field Analysis of Wireless Power Transfer (Electromagnetic Induction Method)

[Analysis Case] Electromagnetic Field Analysis of Wireless Power Transfer (Electromagnetic Induction Method)

Introduction of analysis examples of wireless power transmission using electromagnetic induction method.

In recent years, research and development of wireless power transmission technology, which transmits power wirelessly, has been conducted. First, as a basic model, we consider two coils as shown in the left diagram. The transmitting coil and the receiving coil are arranged vertically, and circuit elements are connected to the coils. On our company website, we introduce analysis examples of wireless power transmission using electromagnetic induction. For more details, please refer to the related links below. 【Case Overview】 ■ Software Used: PHOTO-EDDYjω ■ Analysis Results ・Self Inductance: 358.7 [uH] ・Mutual Inductance: 38.4 [uH] *For more details, please check the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Magnetic Field Analysis of Concentrated Winding IPM Motor

[Analysis Case] Magnetic Field Analysis of Concentrated Winding IPM Motor

The electromagnetic steel sheet uses a B-H curve equivalent to 35A300! The benchmark model employs a concentrated winding stator.

IPM motors have a structure in which magnets are embedded in the rotor, allowing for the utilization of both magnetic torque and reluctance torque, making them widely used as high-efficiency motors. In this analysis, we examined the induced voltage in an unloaded state and the torque waveform under load conditions. The magnets are input with a magnetization vector, and the coil current is input as current density. The current density is set with a time point sequence of a three-phase AC waveform. By setting the rotational speed at the nodes that make up the rotor, rotation is taken into account. [Case Overview] ■ Analysis Type: 2D Nonlinear Magnetic Field Analysis ■ Software Used: PHOTO-MAG *For more details, please refer to the related links or feel free to contact us.

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[Case Study] Magnetic Field Simulation Considering Hysteresis

[Case Study] Magnetic Field Simulation Considering Hysteresis

The input method is simple and user-friendly! We will also introduce examples of investigating the behavior of hysteresis in a rotating magnetic field.

The "hysteresis model using free energy" developed by our company incorporates the free energy of magnetic materials obtained through thermodynamic considerations and the movement of magnetic walls as a friction model. This approach is based on physics rather than a mathematical model. Methods such as ICCG and Newton-Raphson can be directly utilized, allowing for improved representation of hysteresis curves, including minor loops, and enabling vectorization (magnetic anisotropy). In the calculation examples using this method, we will verify whether hysteresis curves that can be expressed mathematically can be reproduced through simulation. We focused on analyzing a single component. If you are interested in magnetic field analysis considering hysteresis, please feel free to contact us. [Case Summary] ■ Software Used: PHOTO-MAG *For more details, please refer to the PDF document or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Electric Field Simulation of Capacitive Sensors

[Analysis Case] Electric Field Simulation of Capacitive Sensors

The software used is PHOTO-VOLT or VOLTjω! Move the electrodes based on the detection body for analysis.

There is a capacitive proximity switch that can detect both metal and non-metal objects without contact. This sensor detects objects by converting changes in capacitance into electrical signals. In this case study, we will analyze the capacitance between a grounded detection object (metal) and the electrodes within the sensor. We will also observe the changes in capacitance when the relative position of the electrodes is altered from the perspective of the detection object. 【Case Overview】 ■Software Used: PHOTO-VOLT or VOLTjω ■Analysis Type: 3D Electric Field Analysis *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Electric Field Analysis of MEMS Electrostatic Actuators (Electrostatic Force)

[Analysis Case] Electric Field Analysis of MEMS Electrostatic Actuators (Electrostatic Force)

Consideration of whether the order of the electrostatic force obtained as a result of the analysis is reasonable! A case study applying electric field analysis.

Here is an example of electric field analysis for a comb-type electrostatic actuator. Electrostatic actuators generate electrostatic force based on the sign of the charges present on opposing electrodes, so electric field analysis is applied. In "PHOTO-VOLT," it is possible to calculate the potential distribution, electric field distribution, and the electrostatic force acting on the electrodes. Additionally, we consider whether the order of the electrostatic force obtained from the analysis results is reasonable. For more details, please refer to the related links below. 【Case Overview】 ■ Software Used: PHOTO-VOLT ■ Analysis Results ・Electrostatic Force (per unit length): 0.792[N] *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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[Analysis Case] Electric Field Analysis Between Coil Wires (Discharge)

[Analysis Case] Electric Field Analysis Between Coil Wires (Discharge)

An analysis case of the electric field generated when a voltage is applied between insulated coil wires (cables).

When a high voltage is applied to a coil, as in the case of surge voltage, a locally high electric field is generated, leading to discharge and damage to the coil's insulation. In this case, we analyze the electric field generated when a voltage is applied between insulated coil wires (cables). The electric field strength generated per 1[V] of voltage between the coil wires can be multiplied by the magnitude of the actual applied voltage to consider it as the maximum electric field strength. Please feel free to consult us regarding any concerns about electromagnetic field analysis. 【Case Overview】 ■ Software Used: PHOTO-VOLT *For more details, please refer to the related links or feel free to contact us.

  • Magnetic field analysis/electromagnetic wave analysis
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