Gauss Meter (Magnetic Field Meter) Comprehensive Analysis: Principles, Brand,Usage, Common Faults, and Repair Methods

Gauss Meter (Magnetic Field Meter) Comprehensive Analysis: Principles, Usage, Common Faults, and Repair Methods

I. Overview of Gauss Meter

The Gauss Meter, also known as a magnetic field meter, is a precision instrument used to measure the intensity of magnetic fields. Based on the Hall effect or Faraday’s law of electromagnetic induction, it can measure the static or dynamic (AC) magnetic induction intensity of an object at a single point in space. Widely applied in magnetic material production, metrological testing, machinery manufacturing, and scientific research in universities, it is an indispensable tool in magnetic measurements.

II. Principles of Gauss Meter

1. Hall Effect PrincipleThe Gauss Meter primarily measures magnetic field intensity through the Hall effect. When a current-carrying conductor (Hall element) is placed in a magnetic field, an electric potential difference (Hall voltage) is generated in the direction perpendicular to both the magnetic field and the current. By measuring the Hall voltage and combining it with the known Hall coefficient, the magnitude of the magnetic induction intensity can be calculated.
2. Faraday’s Law of Electromagnetic InductionSome Gauss Meters also adopt Faraday’s law of electromagnetic induction as the measurement principle. When a conductor coil is placed in a magnetic field, an induced electromotive force is generated within the coil, which is proportional to the strength of the magnetic field and the number of coil turns. By measuring the induced electromotive force, the magnetic field intensity can also be determined.

III. Usage of Gauss Meter

• Power On and Calibration: Press the POWER button to turn on the instrument and perform zero calibration as needed to ensure measurement accuracy.
• Select Range: Choose the appropriate measurement range through buttons or menus to accommodate different magnetic field intensity ranges.
• Measurement Operation: Place the Hall probe in the magnetic field to be measured, ensuring that the probe direction is perpendicular to the magnetic field direction for the most accurate results.
• Read Data: The measurement instrument will display the current magnetic induction intensity value, typically in Gauss (Gs) or millitesla (mT).

IV. Common Faults and Repair Methods of Gauss Meter

1. Common Faults
   • Power Issues: Incorrect power connection or unstable voltage may cause the instrument to malfunction.
   • Sensor Failure: As the core component, damage or aging of the Hall sensor can affect measurement accuracy.
   • Circuit Connection Problems: Loose or damaged connection lines between the probe and the main unit may result in poor signal transmission.
   • Calibration Deviation: Long-term use may lead to changes in instrument calibration, causing inaccurate measurement results.
2. Repair Methods
   • Check Power: Ensure correct power connection and stable voltage. If necessary, replace the power adapter or battery.
   • Replace Sensor: If the sensor is damaged, contact the manufacturer or professional repair personnel for replacement.
   • Check Circuit Connections: Regularly inspect circuit connections for firmness and repair or replace any loose or damaged connections promptly.
   • Recalibrate: Periodically calibrate the instrument to ensure measurement accuracy. Refer to the instrument manual or contact a professional for guidance on the calibration process.

V. Brands and Specifications of Gauss Meters Repaired by Longi Electromechanical

1. Lake Shore Cryotronics
   • Model 425 Gaussmeter: High-precision benchtop magnetic field meter
   • Model 455 Gaussmeter: High-performance digital magnetic field meter
   • Model 475 DSP Gaussmeter: High-precision digital signal processing magnetic field meter
   • Model 475-HP: High-field magnetic field meter
2. AlphaLab Inc.
   • GM2 Gaussmeter: High-precision magnetic field meter
   • VGM Gaussmeter: Vector magnetic field meter
   • TriField® Meter: Multi-function magnetic field meter
3. FW Bell (now Oersted Technology)
   • Model 5180: Handheld Gaussmeter
   • Model 5180F: Handheld Gaussmeter with filtering function
   • Model 6010: Benchtop Gaussmeter
   • Model 9900: Benchtop digital Gaussmeter
4. Brockhaus Messtechnik
   • MPG 200 D: Digital magnetic field meter
   • FMG 20: High-precision magnetic field meter
5. Hirst Magnetic Instruments
   • GM08: Handheld Gaussmeter
   • GM05: Handheld Gaussmeter with USB interface
   • GM04: Portable Gaussmeter
6. Holmarc
   • GMS-07 Gaussmeter: High-precision magnetic field meter
   • GMS-06 Gaussmeter: Laboratory Gaussmeter
7. SENIS AG
   • H3A Hall Probe: High-precision 3D magnetic field meter
   • MAGNETO M3D: 3D magnetic field measurement system
8. Metrolab Technology
   • PT2026: High-precision magnetic field meter
   • THM1176: Handheld 3D magnetic field meter
   • THM1176-HF: High-frequency magnetic field meter
9. Magnetic Instrumentation
   • Model 1080 Gaussmeter: High-precision digital Gaussmeter
   • Model 1100 Gaussmeter: High-precision handheld Gaussmeter
10. Walker Scientific
    • MG-3D Gaussmeter: 3D magnetic field meter
    • MG-1 Gaussmeter: High-precision magnetic field meter
11. Teslameter
    • Model FM302: Handheld Gaussmeter
    • Model FM203: High-precision digital Gaussmeter
12. KANETEC
    • TM-701: Handheld Gaussmeter
    • TM-801: Digital Gaussmeter
13. Goudsmit Magnetics
    • GM Gaussmeter: High-precision digital Gaussmeter
    • PM Gaussmeter: Portable Gaussmeter
14. Oersted Technology (FW Bell)
    • FH 51: Handheld Gaussmeter
    • FH 55: High-precision handheld Gaussmeter
15. Magneview
    • GV-MA: Handheld Gaussmeter
    • GV-DIGI: Digital Gaussmeter
16. Hach Polymetron: 9610sc

Longi Electromechanical has nearly 30 years of experience in repairing Gauss Meters and can quickly repair various instruments. Additionally, we buy and sell used Gauss Meters. Please feel free to contact us for more information.