Coercive Force Meter

DX-320HC Coercive Force Meter – Precision Testing for Soft Magnetic Materials

 

The DX-320HC Coercive Force Meter is a state-of-the-art instrument designed for precise measurement of coercivity (Hc) in soft magnetic materials. Engineered with advanced sensing and control technology, it supports a broad range of materials, shapes, and testing scenarios-ideal for R&D, quality control, and production environments.

 

DX-320HC Coercimeter can not only measure various forms of soft magnets such as strips and sheets, but also directly evaluate the magnetic changes of magnetic components (such as relays, solenoid valves, magnetic heads, etc.) during the process. In addition, it can also be applied to the magnetic measurement of magnetic labels, magnetic anti-counterfeiting inks and cemented carbide, providing important data support for research and development and production in related fields.

 

 

High precision measurement: DX-320HC Coercimeter meter adopts zero magnetic flux detection sensor of vibrating sample to ensure the sensitivity and accuracy of measurement and ensure the reliability of results.

Convenient operation: The user can either test the sample through the operation panel under the single machine condition or test it through the upper computer software control, which greatly improves the flexibility and convenience of operation.

 

 

• Test sample category:  Suitable for a variety of soft magnet materials, such as electropure iron, precision alloy, martensite, etc.
• Sample shape: It is not only limited to strips and sheets but also supports a variety of shapes, such as rod sample measurement.
• Direct test: The instrument can directly test the coercive force of soft magnetic components such as relays, solenoid valves, magnetic heads, leakage protectors, and magnetic labels. It is equipped with a special measuring fixture to ensure the accuracy of the test.
• Test range: Wide measuring range, covering 5 ~ 1000 / m, to meet the needs of different application scenarios.
• Sample size: The maximum supports Φ57mm*200mm samples, the minimum can measure 20μm x 1mm x 30mm tiny samples while providing a customized test platform to meet the test needs of different sizes of samples.

 

 

Hardware Parameters of DX-320HC Coercimeter

 

1. Main frame

 

The instrument adopts ARM control technology, a variety of signal processing algorithms, fast fuzzy algorithms, digital filtering algorithms and intelligent ΔB control technology.
The system supports three measurement modes: fine mode, fast mode and smart mode.

 

Modes	Explanations
Fine mode	It is the common (preferred) test mode.
Fast mode	It is suitable for measuring samples with the same material and the same size, which can greatly reduce the test time; Instructions and prerequisites: 1. The test platform and cabinet cannot be moved or rotated. 2. Use fine mode to continuously measure the same sample more than 2 times;
Smart mode	It has a certain acceleration effect on the tested samples of the same material and size. Instructions and prerequisites: 1. The test platform and cabinet cannot be moved or rotated. 2. The electromagnetic environment around the equipment is relatively stable (such as the laboratory);

 

Notes: Press the number key "4" to set the coercivity range, which can improve the test accuracy and speed.
Test accuracy: Fine mode >Smart mode >Fast mode;
Test speed: Fast mode >Smart mode > Fine mode;

 

2. DX-2012SD POWER SUPPLY

 

Items	Specifications
Output voltage	0～±50V
Output current	1mA～10A (thirteen automatic ranges, dynamic smooth change ranges)
Current fineness	< 0.1%×current range
Current stability	Superior to 0.05%

 

3. DX-210B Fluxmeter

 

Items	Specifications
Display	4¾ digits
Integral capacity	0.1 µF
Input resistance	100 k,, 10 k, 10 k, 10 k
Range	40mVs, 4mVs,, 0.4 mVs, 0.04mVs
Resolution	0.01, 0.001, 0.0001, 0.00001 mVs
Accuracy	1% reading±4uVs(10Hz-10kHz); ±5% reading±4uVs(2Hz-10Hz:10kHz-50kHz);Integrator drift: N/A.
Frequency range	2 Hz to 50 kHz

 

Technical Data of DX-320HC Coercive Force Meter

 

Working Environment

 

Parameters	Specifications
Input power	Single-phase 200~240V, 20A, 50Hz
Total power	About 2000w
Environment	Temperature: 23±5℃; Humidity: 30~75%RH
External magnetic field interference	Absolutely avoided
Thermal balance time	10 minutes

 

System Parameters

 

Parameters		Specifications
Max. Magnetic field		50KA/m (measure general soft magnet components)
Magnetic field resolution		0.01A/m
Measurement range		5-1000 A/m(equip with 3 kinds of coil)
Accuracy		±2%
Repeatability	Reference sample	Superior to ±0.5% (when measuring electric pure iron, with the size of diameter 10mm, length 100-200mm).
	Magnetic components	±1%,±0.18A/m
Test period		1min~3min

 

 

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Question 1. What is the main working principle of the Coercive Force Meter?

Answer: The Coercive Force Meter (also known as the coercive meter) mainly works by measuring the reverse magnetic field strength (coercive force) required by removing the external magnetic field after the magnetic material is magnetized to saturation in the magnetic field. This measurement process is achieved through a precision magnetic field control system and magnetic induction intensity detector.

 

 

Question 2: How to choose the right Coercive Force Meter to test different types of magnetic materials?

Answer: When selecting an appropriate Coercive Force Meter, you need to consider several factors, including the type of test materials (such as soft magnets and hard magnets), size range, and test accuracy requirements. In general, for different types of magnetic materials, instruments with corresponding measurement ranges and accuracy should be selected. At the same time, ensure that the instrument has sufficient magnetic field control ability and stability.

 

 

Question 3: How does the magnetic field control system of the Coercive Force Meter work?

Answer: The magnetic field control system of the Coercive Force Meter usually consists of one or more current coils that generate a precise magnetic field. By precisely controlling the current in the coil, the size and direction of the magnetic field can be adjusted, thus simulating different magnetic field environments to test the coercivity of magnetic materials under different conditions.