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This section provides an overview for flux meters as well as their applications and principles. Also, please take a look at the list of 5 flux meter manufacturers and their company rankings. Here are the top-ranked flux meter companies as of December, 2024: 1.Dexing Magnet Tech. Co., Limited.
Table of Contents
A flux meter is a device designed to measure the magnetic flux in an electromagnetic field.
Magnetic flux is represented by the number of magnetic field lines passing through a certain area, and it is a crucial indicator for understanding the strength and variations of electromagnetic fields. Flux meters are widely used in applications such as monitoring changes in the Earth's magnetic field for geophysical measurements and industrial purposes. Due to their high sensitivity and accuracy, they can detect extremely small changes in magnetic flux. Additionally, they allow for non-intrusive measurements as physical contact with the measurement target is not required.
However, periodic calibration may be necessary to obtain accurate measurement results. The performance of the measurement device and sensing coils may change over time, requiring attention to maintain reliability.
Flux meters have a wide range of applications in various fields.
Flux meters are used to monitor variations in the geomagnetic field generated by the dynamo effect within the Earth. Changes in the Earth's magnetic field are related to internal processes, making them useful for predicting and researching earthquakes and volcanic activities. Installed in geomagnetic observatories and underground exploration devices, flux meters track variations in the Earth's magnetic field.
In industrial processes, measuring magnetic fields is crucial for the quality control of metals and the control of electromagnetic valves, among other applications. Monitoring changes in the magnetic field within metal materials helps detect defects in quality and structure. They are also widely used in quality inspections of sensors and similar devices.
Flux meters are employed in environmental monitoring, such as the exploration of underground mineral resources and the monitoring of groundwater. The variations in the magnetic field due to the presence of subsurface materials allow for the assessment of underground structures and resources.
Spacecraft and probes use flux meters to measure the magnetic fields of celestial bodies and outer space. Investigating the magnetic fields of extraterrestrial objects aids in understanding their origins and evolution.
The operating principle of a flux meter is primarily based on the response of sensing coils to changes in magnetic flux. Typically, there are two sensing coils, and these coils, are components that generate induced currents based on Faraday's electromagnetic induction law when the magnetic flux in the core changes due to an external magnetic field.
The strength of the induced current from the sensing coils changes with the strength and direction of the external magnetic field. Flux meters often have a balanced circuit that evaluates the output from the sensing coils. When the external magnetic field influences the core, the induced current in the sensing coils changes, leading to an unbalanced state in the balance circuit.
Depending on the unbalanced state of the balance circuit, measurements or outputs are emitted. This output provides information about the strength and direction of the external magnetic field, enabling the display of magnetic field changes in numerical or graphical form.
Several factors need to be considered when choosing a flux meter.
The selected measurement range must align with the actual strength of the magnetic field of the measurement target. If the magnetic field strength exceeds the flux meter's measurement range, accurate measurements may become impossible.
Higher measurement accuracy allows for more precise measurements. Depending on the accuracy required by the application, choose a flux meter with the appropriate level of precision.
The physical dimensions must match the installation space. Particularly in cases of limited space or when used as a portable measurement device, selecting a compact design is crucial.
Since a power source is typically required, ensuring an appropriate power supply method is essential. Common power supply methods include battery-driven, AC power, and DC power.
Flux meters have interfaces for outputting measurement results. Examples include analog output, digital output, and communication interfaces (such as USB or RS-232). Choose the appropriate output interface based on the application's requirements.
*Including some distributors, etc.
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Electrosine Systems is a manufacturer of magnetic testing and measurement equipment based in Maharashtra, India. They offer a range of products such as impulse magnetizers, impulse demagnetizers, magnetic calibrators, gauss meters, and flux meters, catering to industries like automotive, appliances, defense, electronics, and hardware. Electrosine Systems also provides custom-built microprocessor-based calibration systems for magnet-based instruments and is capable of meeting the requirements of rare earth magnet-based systems with large magnetizing machines.
Rinch Industrial Co., Limited, has been a manufacturer of measurement gauges and testing meters since 2000 in China. The company designs various devices, such as Gas Meters, Surface Processing gauges, Lab Instruments, Thermometers, and Moisture meters for checking humidity and Industrial control meters. These are further categorized into instruments and testing devices for particular applications, such as Coating Thickness Gauge measures the thickness and corrosion of pressure vessels, chemical equipment, boilers, oil storage tanks, etc., and the Whiteness Meter measures the whiteness of objects or powder with a flat surface with uses in textile printing, dyeing, and paint industries.
Ferrites, based in Maharashtra, India, is a manufacturer and exporter of magnet measuring instruments and magnet testing instruments established in 1979. The magnetic material testing equipment includes core loss, single sheet, digital core loss, and laminated toroidal core testers for testing electrical steel magnets,and magnetic powerders. Ferrites also manufactures pneumatic actuators, flow control systems, impulse demagnetizers, impulse magnetizers, and digital gaussmeter used in automotive, electrical, laboratory, field studies, and industrial applications.
Xiamen Dexing Magnet Tech. Co. Limited, established in 1985 and headquartered in Jiangsu, Zhejiang, China, is a specialist manufacturer of magnetometers, related components, and advanced process machinery. The company's product line includes magnetic field testing meters, magnetic field generators, and various application-specific magnetic testing equipment. It also produces a range of components, such as solenoids, hall probes, and flux gate meters. These products are used in various industries for monitoring surface structures and flaws and detecting particles in air and water, and are also assembled for a wide range of commercial, scientific, and military applications.
TUNKIA Co., Ltd., established in 1985 and headquartered in Changsha, China, is a supplier of many kinds of electromagnetic measurement equipment. The company provides advanced multifunction calibrators, electric vehicle charging facility testers, AC/DC standard meters, wideband power sources, and single-phase / three-phase standard meters. It also offers safety instrument detection, high voltage standard instruments, industrial instrument testing products, and calibration devices. Its advanced multifunction calibrators are suitable for calibrating DC power meters of class 0.05 and below, active power meters of Class 0.1 and below, and reactive power meters.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Dexing Magnet Tech. Co., Limited |
100.0%
|
Derivation Method
The ranking is calculated based on the click share within the flux meter page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
3 | 60.0% |
|
India
|
2 | 40.0% |
