KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.

Magnetic Property / Permeability (μr')
Measurement System
For Low / High Frequency

Model No. PER

KEYCOM has developed various measurement systems for magnetic material, including ESR (electron spin resonance) measurement and measurement of magnetic permeability using the S-parameter method.

1.  For Low Frequency Range

  1.1.  PER21 (For 1KHz-1MHz)
Relative Magnetic Permiability Measurement System
 

The system can perform relative magnetic perminaibility in low-frequency range with low noise.

It can measure measure inductance and resistance using an LCR meter with the automatic balanced bridge method to calculate the values.
  1.2.  PER01 (For 100KHz-30GHz)
Magnetic property characteristics measurement system
 

KEYCOM’s magnetic property characteristics measurement system delivers ideal measurement solutions for complex permeability μr'- jμr'', ferromagnetic resonance relaxation coefficient α, resonant line width ΔH, and saturation magnetization 4πMs in wideband from 100kHz up to 25GHz (30GHz).

Measurement process is very simple, just setting your disk or square specimen on the microstripline and sweeping the frequency with your vector network analyzer, so that you can perform measurement easier and more accurately.

Please also refer to the webpage of KEYCOM's measurements, evaluations and analyses service center.

2.  For High Frequency Range

  2.1.  PER01
Magnetic property characteristics measurement system
 

*Description is the same as above.

KEYCOM’s magnetic property characteristics measurement system delivers ideal measurement solutions for complex permeability μr'- jμr'', ferromagnetic resonance relaxation coefficient α, resonant line width ΔH, and saturation magnetization 4πMs in wideband from 100kHz up to 25GHz (30GHz).

Measurement process is very simple, just setting your disk or square specimen on the microstripline and sweeping the frequency with your vector network analyzer, so that you can perform measurement easier and more accurately.
  2.2.  DPS08
S-parameter method
Reflection and transmission mode coaxial tube and waveguide type dielectric constant, dielectric loss tangent, permeability, measurement system [DPS08]
 
KEYCOM provides S-parameter method measurement systems in two modes, the reflection mode and the transmission mode, to address the individual purposes.
Both modes measure the complex permittivity (εr) and complex permeability (μr) at the same time.
The optional software DMP-70 calculates the absorption ratio and the reflection ratio of electromagnetic absorbers based on the complex εr and complex μr.
  2.3.  DPS24
S-Parameter Method, Free Space Type
Dielectric Constant, Dielectric Loss Tangent, Permeability, Transmission attenuation, Electric wave absorption rate Millimeter wave / Microwave Measurement System (Dk, Df/ ε′r, tanδ/ μ′r, μ"r) [DPS24]
 
Free-space type measurement system that can simultaneously measure relative permittivity, dielectric tangent, and magnetic permeability.It can use TRL and LRL calibration and is suitable for measurement of materials with high loss.

3.  EPR / ESR Measurement

  3.1.  ESR05
ESR measurement system for magnetic property
 
This system is for the magnetic materials, especially the best for the research such as Spintoronics and Quantum dots technology.
･ It has the measurement sensitivity more than that of standard type X band ESR system, because it uses ferromagnetic resonance(FMR) .
･ You can rotate the specimen by two axis accurately, and can incline the specimen.
･ You can change the static magnetic field from zero to high magnetic field up to 500 mT.