UME

Magnetics Laboratory

About Us

In the magnetics laboratory, calibration of magnetic field measuring devices (Gauss/Teslameter, magnetometer, fluxmeter, etc.) and characterization of magnetic materials are aimed to be carried out. At the same time, it is also among its duties to establish national standards in these areas and transfer them to secondary level laboratories.

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Areas of Activity and Services

In addition to calibration and experiment/testing activities, R&D activities are carried out in the laboratory for industrial, medical and military applications for the needs of the country. In addition, by participating in international projects together with metrology institutes of other countries, studies on current issues are closely followed.

Among the important studies carried out in our laboratory in recent years is the development of a high-precision fluxgate magnetometer. This magnetometer has a wide range of applications. It was first used during World War II to detect submarines and sea mines, and today it is an essential device for low-altitude satellites. The fluxgate magnetometer, which was developed by TUBITAK-UME and passed all the tests, and our torque rods connected to this device took their place on the İMECE satellite launched in 2023. We continue to work on the construction of magnetometers and torque rods for the satellite projects to be launched in the coming years. We also have projects for different applications of the fluxgate magnetometer.

Another recent and important work carried out in the laboratory is the "Development of a low-field and low-cost portable MR imaging device" project supported by EURAMET, in which many metrology institutes are participating. Unlike commercial high magnetic field MR devices, the magnetic field in the MR device to be produced in this project is generated by NdFeB magnets. Approximately 2500 NdFeB magnets are arranged with a special technique to create a homogeneous magnetic field of 50 mT. This device is considered as a practical solution for regions that do not have the opportunity to purchase a commercial MR Device. Since there is no need for liquid helium, maintenance and operating costs are also very low. It is also on the agenda for use in emergency and intensive care units of hospitals in cases where the patient cannot be transported. When the project is completed, it will be put into use at I.U. Cerrahpaşa Faculty of Medicine.

Service Areas

  • Calibration of magnetic field meters
  • Characterization of magnetic materials 

Magnetic Field Capacity

  • DC Magnetic Field: Up to 2.2 Tesla
  • AC Magnetic Field (@50Hz): Up to 300 Gauss

Measurement Assembly Specifications

  • High precision measurement equipment
  • Possibility of testing at different field intensities

Industrial and Special Services

  • Project development for industrial and military fields
  • Customized test and experiment services

Testing to Military Standards

  • Magnetic tests in accordance with military standards not included in the industrial service list

Services Provided

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Calibration / Testing Services

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Training Services

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Consulting Services

Technical Hardware and Equipment

Used in magnetic field meter calibration in our laboratory,

  • Helmholtz coil (0-10 mT)
  • Reference coil (10-180 mT)
  • Electromagnet (0-2.2 T)

There are sources of magnetic fields.

As well as for the characterization of magnetic materials;

  • Vibrating Sample Magnetometer (VSM)
  • SQUID Magnetometer (Superconducting Quantum Interference Device Magnetometer)
  • Permeagraph

There are three different measurement systems.

The sample vibrating magnetometer is used to characterize magnetic materials in powder form. Up to 2.2 T magnetic field source is available. Measurement can be taken at room temperature. Magnetization measurement 1000 - 10-5 can be made between emu.

The SQUID magnetometer is the latest and most sensitive measurement system available today for magnetization measurements. Used to characterize materials with very low magnetization. Measurement range 1.25 - 10-8  emu and is 1000 times more sensitive than a sample vibrating magnetometer. It is possible to generate a magnetic field up to 5 T and it is possible to measure from room temperature up to 2.2 K.

The Permeagraph device is more suitable for industrial use. It is an ideal device for characterizing permanent magnets with a certain geometry that we use in daily life. It can generate up to 2.2 T magnetic field.

 Our laboratory has a magneto-optical system to view magnetic regions on magnetic strip cards (magnetic thick films) and to measure magnetization locally. With this system, it is possible to measure an area of 1 mm in diameter and extract the magnetic map of the material.

PHYSICS GROUP

Projects and Collaborations

    • TUBITAK 1001: Detection of ULF magnetic anomalies known as earthquake precursors with a new design search coil magnetometer. 2023-2026
    • TÜBİTAK UME - Slovak Academy of Sciences Bilateral Cooperation : Design of a New Material Based High Performance Magnetic Gradiometer. 2024-2027
    • EUROMET EMPIR Program: Affordable low-field MRI reference system
    • TÜBİTAK UME - ASELSAN
    • TÜBİTAK UME - SSB
    • TUBU̇TAK UME - TUBİTAK SPACE: Construction of magnetometer and torque rod for IMECE2 and Gokturk.

For more informationContact Us

Email: ume@tubitak.gov.tr

Phone: 0 (262) 679 5000