Gauss Meter

The Gauss meter or teslameter is a magnetic sensor magnetometer that measures magnetic induction intensity such as AC and DC magnetic fields, radiation magnetic fields, residual magnetism, earth magnetic field, etc. The gaussmeter consists of a Hall probe and a measuring instrument.

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Dexinmag is a world-renowned manufacturer specializing in the production of Gauss meters.

What is a gauss meter?

Working Principle of the gauss meter

The Hall probe as a sensor generates a Hall voltage due to the Hall effect in the magnetic field. After measuring the Hall voltage, the magnitude of the magnetic induction intensity can be determined according to the Hall voltage formula and the known Hall coefficient and displayed on the instrument.

Parameters of the digital gauss meters

Model Range Frequency Min.Resolution  Accuracy Test dimension
DX-102 ±3T DC 0.1mT ±1% of reading 1D (handheld)
DX-102F ±3T DC - AC 0.01mT DC: ±1% of reading ± 0.05% of range
AC: ±3% of reading ± 0.5% of range		 1D (handheld)
DX-103 ±2T DC - AC 0.01mT ±1% of reading ± 0.05% of range 1D
DX-1205F ±3T DC 0.001mT ±0.45% of reading ± 100uT 1D
DX-150 ±3T DC - AC 30KHz 0.01mT DC: ±0.3% of reading ± 0.05% of range
AC: ±2% of reading ± 0.5% of range		 1D
DX-160 ±10T DC - AC 50KHz 0.01uT DC: ±0.2% of reading ± 0.05% of range
AC: ±1% of reading ± 0.5% of range		 1D
DX-180 ±30T DC - AC 100KHz 0.01uT DC: ±0.05% of reading ± 0.005% of range
AC: ±1% of reading ± 0.5% of range		 1D
DX-210 ±30T DC - AC 100KHz 0.01uT DC: 1D - ±0.05% of reading ± 0.005% of range
       2D - ±0.1% of reading ± 0.005% of range
AC: ±1% of reading ± 0.5% of range		 2D
DX-350 ±3T DC 0.001mT ±0.45% of reading ± 0.005% of range 3D
DX-360 ±30T DC - AC 100KHz 0.01uT DC: 1D - ±0.05% of reading ± 0.005% of range
       2D - ±0.1% of reading ± 0.005% of range
       3D - ±1% of reading ± 0.005% of range
AC: ±1% of reading ± 0.5% of range		 3D
1T=10³mT=10⁶μT=10⁴Gs

 

CE certificate of Gaussmeter

DX-102 Portable DC Gauss Meter
DX-102 Portable DC Gauss Meter based on the latest progress of the Hall effect magnetic field measuring instrument adopted DSP technology. Test probe adopts import GaAs linear Hall chip, the difference between any two probes is small, if damaged, it can be replaced directly. DX-102 Gaussmeter is an ideal DC magnetic field test instrument.
¥ 0.00
DX-360 3 Axis Gauss Meter
DX-360 3 axis gauss meter is the world's advanced Gauss meter, applying the latest technology of magnetic field measurement. The panel is very easy to operate and has a very good man-machine communication interface. The screen has a large VGA display, can display all the required information, and choose whether to display. All options can be achieved through the operation button on the panel.
¥ 0.00
DX-102F Portable AC and DC Gauss Gauge
DX-102F is a portable AC and DC gauss gauge used for measuring the surface magnetic field of permanent magnets and the working magnetic field of DC motors and magnetic separators. DC Measurement Range: 30kG, 6kG, 600G; AC Measurement Range: 3.6Kg, 120G;
¥ 0.00
DX-1205F Desktop DC Gauss Meter
DX-1205F Gaussmeter is a desktop gaussmeter.
Based on the latest progress of the Hall Effect magnetic field measuring instrument.
Adapt the high stability constant current source circuit technology to design and manufacture.
Test probe adopts imported GaAs linear Hall-chip, the difference between any two probes is small, which can be replaced directly when it is damaged.
DX-1205F Gaussmeter is an ideal DC magnetic field test instrument.
¥ 0.00
DX-150 AC and DC Magnetic Gauss Meter
DX-150 Full-Digital magnetic gauss meter is designed for applications requiring high precision, high-resolution magnetic field measurement. It is an intelligent solution against the traditional analog, digital table header type Gauss / Tesla meter. It is a high-precision intelligent apparatus, which integrates measuring, storage, industrial control, and communication just in one machine.
¥ 0.00
DX-160 AC and DC Digital Gauss Meter
DX-160 Full-digital high-precision digital gauss meter is designed for high-test precision, high-resolution magnetic field test applications. It provides a wide-range measurement from DC to up to 50kHz AC magnetic field measurement. It also has functions of auto-zeroing and auto-range. Maximum value, minimum value, peak and valley are selectable at hold mode.
¥ 0.00
DX-103 Portable AC and DC Gaussmeter
DX-103 Portable AC and DC Gaussmeter can be used to measure the magnetic induction intensity of various magnetic fields such as AC / DC space magnetic field, permanent magnet surface magnetic field, earth magnetic field and so on
¥ 0.00
DX-180 High-precision AC and DC Gauss Tesla Meter
DX-180 High-precision AC and DC Gauss Tesla Meter is suitable for a vast number of applications. It provides a wide-range measurement from DC to up to 100 kHz AC magnetic field measurement. It also has functions of auto-zeroing and auto-range. Maximum value, minimum value, peak and valley are selectable at hold mode.
¥ 0.00
DX-103 Desktop AC and DC Teslameter
DX-103 Teslameter is a desktop tesla meter.
Based on the latest progress of the Hall Effect magnetic field measuring instrument.
Adapt the high stability constant current source circuit technology to design and manufacture.
Test probes adapt imported GaAs linear Hall-chip, the difference between probes is small.
Can be replaced directly when it is damaged, and is an ideal AC & DC magnetic field test instrument.
¥ 0.00
DX-350 3D Gauss Meter
DX-350 3D Gauss Meter adopts advanced ARM microprocessing technology and uses multi-channel synchronous acquisition and processing technology to simultaneously display the magnetic induction intensity in the x, y, and z directions, and automatically calculate and display the Bxyz vector superposition value.
¥ 0.00
DX-190 High-precision AC and DC Gaussmeter
The extremely high-precision instrument of the DX-190 Gauss meter is suitable for most applications. Automatically compare zero, automatic range. The maximum value, minimum value, peak value and valley value can be selected for the hold mode. The meter can measure and display multiple parameters at the same time. With high-precision analog output (±3.0V). The measurement unit can be Gs, mT, A/M or Oe
¥ 0.00
DX-210 Two Dimensional Gauss Meter
DX-210 Digital Two-Dimensional Gauss / Tesla meter is suitable for the magnetic field test application that required high accuracy, and high resolution. It integrates two sets of high-precision Gauss meters and can be equipped with a two-dimensional probe to test the two-dimensional space magnetic field and two one-dimensional probes to test respectively. The measuring range is from DC to 50KHZ AC magnetic field. It is designed and produced in accordance with the ISO-9001 standard.
¥ 0.00
DX-130 DC Gauss Meter
DX-130 all-digital gaussmeter is suitable for high-accuracy, high-resolution magnetic field test applications. It is a high-precision intelligent instrument that Dexinmag company design and manufacture. It is an intelligent solution for the traditional analog and digital Gauss meter.
¥ 0.00
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Each Gaussmeter is equipped with a standard hall probe.

Types of Hall probes

The Hall probe is a key component in making a Gaussmeter, which determines the performance and quality of the Gaussmeter.

Ultrathin and miniature GaAs hall sensors produced by Dexinmag company in the world's leading level have a stable linear output of 0.1uV at the minimum. The full scale of linearity (0-3T) is maintained at an excellent level of ±0.05%, and the temperature drift is <-0.015%/℃.

Transverse probe is usually a thin rectangular shape and is successfully used for various magnetic fields, surface measurements of magnetic materials, or small gaps and general open field measurements.

Axial probe is usually cylindrical. Its applications include measurements borne by the center of a ring magnet, solenoids, surface field detection, and general magnetic field induction.

Flexible probe is a flexible epoxy resin package. The probe part is not strongly protected and is easily damaged, but it is ultra-thin at only 0.30mm and is used in narrow gap measurement applications.
Two-dimensional and three-dimensional probes are usually cylindrical or square and are used to measure two-dimensional and three-dimensional device magnetic fields and spatial magnetic fields.

 

Warning: Be very careful when handling the probe. The probe tip is very easy to break. Applying stress to the Hall sensor will change its calibration data. Any excessive stress will easily break the sensor, and the broken sensor cannot be repaired.

Factors affecting the test value of Gauss meter

The larger the angle between the probe tip and the magnetic field direction, the greater the percentage error of the reading.

Wrong test method: The Hall chip is at a certain angle to the magnetic field, not perpendicular, which brings errors to the measurement.

Ordinary test method: Manually adjust the measurement direction and position, but the measurement repeatability cannot be guaranteed.

The best test method: Fix the probe with a bracket to prevent the probe from shaking, and the best test direction can be found by adjustment, that is, the direction in which the Hall chip is completely perpendicular to the magnetic field.

The positions of the Hall elements in different probes are different.
These probes will not sense the change of magnetic field due to the change of position in a uniform magnetic field, and the measurement data will not be inaccurate due to the different positions. When different probes are used to measure the divergent and uneven magnetic field on the surface of the magnet, although the surface appears to be placed in the same position, the internal Hall element actually senses the magnetic field at a different position. (Generally, the smaller the size of the measured magnet, the greater the curvature of the magnet surface, the more uneven the surface magnetic field, and the greater the difference in the measured data).

The sensitive area size of the Hall element encapsulated in different models of Hall probes is different.
In the early germanium and silicon Hall elements, the effective sensitive area is basically the size of the element itself, with a large area. If this Hall element is used to measure the surface magnetism of small magnets, corners of magnets, or multi-pole magnetized small magnets with divergent magnetic lines of force. It can only reflect the average value of the magnetic induction intensity passing through the surface of the element. This value must be less than the maximum value of the area.
If a Hall element with a small sensitive area is used instead, such as a gallium arsenide Hall element, the effective area of ​​its sensitive area is about 0.1×0.1～0.2×0.2mm², which is much smaller than the area of ​​germanium and silicon Hall elements. This element can better reflect the field distribution of the surface magnetic field, and the maximum value measured is closer to the actual value of the maximum magnetic induction intensity in the area.

Temperature will also affect the accuracy of the probe. Please try to use the probe at a temperature near 20℃.

Metal package probes are the best choice for DC and low-frequency AC because they provide the best protection. Brass is the best choice among non-ferrous metals, but it will produce eddy current effects in AC environments above 800 Hz, causing certain errors.

Non-metallic packaging is the first choice for high-frequency AC environments, but it is easy to damage.

DX-102F Portable Gauss Meter

Dexinmag company is a technology company specializing in fully digitalized automated magnetic measurement systems, high-precision digital magnetic detection equipment and digital magnetic field control. Relying on the advanced technology of the Chinese Academy of Sciences, we develop and produce high-precision one-dimensional, two-dimensional and three-dimensional Hall probes (with temperature compensation) and multi-dimensional high-precision and high-resolution gaussmeters, and have passed ISO9001 and IQNET international system certification. Many performance and parameters can reach the international advanced level. And it has been used many times in aerospace, military industry, navigation, scientific research and colleges and universities, and has been widely praised.

Customization is available, please let us know your requirements, and we will design a professional plan for you. Thank you!

Dexinmag® • 2024

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