Magnetic Field Sensors for Electromagnetic Stirring

Q: What is the typical measurement range of these sensors?

The typical measurement range is ±100 mT, but this should be confirmed for the specific model and application.

Q: What output signal do these sensors provide?

They provide a 4–20 mA output signal, which is a standard industrial current loop for transmitting measurement data.

Q: What is the operating temperature range?

The operating temperature range is -40 to 85 °C, but extended ranges may be available on request.

Q: What ingress protection rating do they have?

They have an IP67 rating per IEC 60529, meaning they are dust-tight and protected against immersion.

Product Specifications

Technical details and manufacturing context for Magnetic Field Sensors

Definition

Magnetic field sensors are specialized components integrated into industrial-grade continuous casting mold electromagnetic stirrers. They monitor and provide real-time feedback on magnetic field characteristics, ensuring precise control of electromagnetic stirring forces that influence molten metal flow and solidification patterns during continuous casting processes. These sensors operate by detecting changes in magnetic flux density using various technologies such as Hall effect, magnetoresistive, or fluxgate principles, converting magnetic field variations into proportional electrical signals for measurement and control systems. Typical specifications include a measurement range of ±100 mT, sensitivity of 0.1–1 mV/V/mT, accuracy of ±0.5% FS, response time of less than 10 ms, operating temperature from -40 to 85 °C, supply voltage of 24 V DC ±10%, output signal of 4–20 mA, ingress protection rating of IP67 per IEC 60529, housing material of 316L stainless steel per ASTM A240, and weight ranging from 0.5 to 1.5 kg. These values are reference ranges and must be confirmed for the specific model and application. The sensors are designed for harsh industrial environments, with corrosion-resistant housing and dust-tight protection. They are essential for maintaining optimal stirring conditions, which directly affect the quality and consistency of the cast product. For selection, consider the required measurement range, sensitivity, accuracy, response time, and environmental conditions. Interface with control systems via the 4–20 mA output signal. Verification should include checking calibration against known magnetic field sources and ensuring compliance with the listed standards. Maintenance signals include drift in output, increased noise, or failure to respond to field changes. Failure boundaries include exposure to temperatures outside the specified range, mechanical damage, or electrical overstress. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Magnetic field sensors detect changes in magnetic flux density using technologies such as Hall effect, magnetoresistive, or fluxgate principles. These sensors convert magnetic field variations into proportional electrical signals, typically a 4–20 mA current loop, which are then processed by control systems to adjust stirring parameters. The sensing element, often a semiconductor or ferromagnetic core, responds to the magnetic field, and the resulting signal is conditioned and amplified for accurate measurement. The response time is typically less than 10 ms, enabling dynamic control of the stirring process.

Common Materials

Semiconductor materials (e.g., silicon), Ferromagnetic cores, Copper windings, Protective housing materials

Technical Parameters

Parameter	Typical range	Notes & selection driver
Measurement Range	±100 mT	Typical range for electromagnetic stirring systems
Sensitivity	0.1–1 mV/V/mT	Higher sensitivity improves resolution
Accuracy	±0.5 % FS	Includes linearity and hysteresis
Response Time	<10 ms	Fast response for dynamic control
Operating Temperature	-40–85 °C	Extended range available on request
Supply Voltage	24 ±10% V DC	Reverse polarity protected
Output Signal	4–20 mA	Two-wire loop powered
Ingress Protection	IP67	Dust-tight and protected against immersionIEC 60529
Housing Material	316L	Corrosion resistant for harsh environmentsASTM A240
Weight	0.5–1.5 kg	Depends on cable length and connector

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Sensing Element Part
Core component that directly interacts with magnetic fields to generate measurable signals

Material: Semiconductor or ferromagnetic materials
Signal Conditioning Circuit
Amplifies and processes raw signals from sensing element for accurate measurement

Material: Electronic components on PCB
Protective Housing Part
Shields sensitive components from environmental factors and mechanical damage

Material: Stainless steel or industrial-grade plastics
Connector Interface
Provides electrical connection to control systems and power supply

Material: Industrial-grade connectors with corrosion-resistant coatings

Manufacturers of Magnetic Field Sensors

Manufacturer profiles associated with Magnetic Field Sensors.

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Frequently Asked Questions

What is the typical measurement range of these sensors?

The typical measurement range is ±100 mT, but this should be confirmed for the specific model and application.

What output signal do these sensors provide?

They provide a 4–20 mA output signal, which is a standard industrial current loop for transmitting measurement data.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, but extended ranges may be available on request.

What ingress protection rating do they have?

They have an IP67 rating per IEC 60529, meaning they are dust-tight and protected against immersion.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 10 bar (standard), up to 50 bar (specialized)
other spec:	Magnetic field range: ±2 mT to ±2 T, slurry concentration: ≤40% solids by volume
temperature:	-40°C to +85°C

Magnetic Field Sensors

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards