Magnetic Temperature Compensation Permalloy 1J30 Series for Automotive and Precision Instruments

Product Summary: Our magnetic temperature compensation Permalloy series includes grades 1J30, 1J31, 1J32, 1J33, and 1J38, designed to provide linear adjustable magnetic permeability with temperature. These alloys automatically compensate for magnetic drift caused by temperature fluctuations, ensuring constant instrument accuracy in automotive, aerospace, and industrial measurement applications. Operating range -60°C to 150°C.

Key Selling Points

• Linear Adjustable Permeability vs. Temperature: Compensates magnetic drift with high repeatability, proven in automotive meter and aerospace gyroscope projects.
• Wide Temperature Range (-60°C to 150°C): Maintains stable compensation under extreme conditions including high humidity and vibration.
• Low Coercivity and High Sensitivity: Enables accurate response in weak magnetic fields for sensors.
• Multiple Grades for Different Compensation Slopes: 1J30 (low), 1J31 (medium linear), 1J32 (high sensitivity), 1J33, 1J38 for diverse requirements.
• Customizable Thickness and Shape: Strip, wire, or stamped parts with tight tolerance.

Technical Specifications

Models and Options

Grades 1J30, 1J31, 1J32, 1J33, 1J38. Forms: strip, wire, stamped compensation rings or discs.

Materials and Structure

Nickel-iron alloy with controlled element composition for specific temperature coefficient. Vacuum annealing for uniform magnetic properties.

Applications

• Magnetic temperature compensation in automotive meters and sensors
• Aerospace precision gyroscopes and accelerometers
• Industrial wind speed measurement sensors
• Magnetron and permanent magnet loop compensation
• Instrument calibration under varying temperatures

Customization

We can adjust composition to target specific temperature coefficient. Custom dimensions and forms. MOQ 50 kg. Payment: 30/70. Delivery: FOB, FCA, DAP, CIF, CPT.

Case Study

An automotive OEM used 1J31 in their dashboard meters to compensate magnetic drift from -40°C to 85°C. The result was consistent accuracy with less than 1% error over the temperature range, improving reliability.

FAQ

1. How does magnetic temperature compensation work? The alloy's permeability changes linearly with temperature, offsetting the magnetic drift of permanent magnets or sensors.
2. Which grade should I choose for weak magnetic field? 1J32 offers high sensitivity and fast response.
3. Can you provide custom compensation slopes? Yes, we can adjust alloy composition to meet your target coefficient.
4. What is the MOQ? 50 kg.
5. Do you have samples available? Yes, with freight collect.
6. Is this material suitable for continuous vibration? Yes, it has good fatigue resistance and stable magnetic properties.
7. What is the typical lead time? 20-30 days.

Inquiry Information

Contact Alex Zhang: chengyuan.alexey@gmail.com | Tel/WhatsApp: +86 13673186216

Image Filename and Alt Suggestions

Main image: permalloy-1j30-strip.png (Alt: Permalloy 1J30 strip for temperature compensation)
Detail 1: permalloy-1j30-packaging.png (Alt: Packaged temperature compensation Permalloy)
Detail 2: permalloy-1j30-rolling.png (Alt: Production of Permalloy 1J30 strip)