Magnetic Sensor Block with Shared Coil for Orthogonal Calibration

Solution Overview

Problem

Conventional magnetism measurement devices require multiple magnetic field generation coils for different detection directions, leading to increased costs and variations in magnetic output characteristics.

Innovation Solution

A magnetism measurement device with a shared magnetic field generating part that acts along two orthogonal directions, allowing for easy calibration of first and second magnetic sensors without the need for individual coils for each sensor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple magnetic field generation coils are provided for different magnetism detecting directions, then calibration capability for multiple directions is improved, but device complexity and cost increase

Engineering Contradiction:

Improvecalibration capability for multiple directionsVSAvoidnumber of magnetic field generation coils

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single magnetic field generation coil that can generate magnetic fields in multiple directions (first direction and second direction) through controlled energization. This single coil replaces what would traditionally require multiple separate coils, achieving multi-directional calibration capability while reducing device complexity and cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple magnetic field generation coils are provided for different magnetism detecting directions, then calibration capability for multiple directions is improved, but variations in magnetic output characteristics increase

Engineering Contradiction:

Improvecalibration capability for multiple directionsVSAvoidconsistency of magnetic output characteristics

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies universality by designing a single magnetic field generation coil that can generate magnetic fields in multiple directions (first direction and second direction) through controlled energization. This single coil replaces what would traditionally require multiple separate coils, achieving multi-directional calibration capability while reducing device complexity and cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The shared magnetic field generating part enables cost-effective calibration of multiple sensors, reducing the impact of variations in magnetic output characteristics and enhancing accuracy.

Implementation Method 1

a magnetic field generating part that causes a magnetic field to be generated in response to energization

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12578495B2Sensor block for magnetism measurement

Publication Date: 2026.03.17 AICHI STEEL CORP

AI summary

A magnetism measurement device has a first magnetic sensor that detects magnetism acting along any first direction, a second magnetic sensor that detects magnetism acting along a second direction crossing the first direction in which the first magnetic sensor detects magnetism, and a magnetic field generating part that causes a magnetic field to be generated in response to energization, and the magnetic field generating part is incorporated in a state in which positions opposed to the first magnetic sensor and the second magnetic sensor are fixed, so as to act with magnetism along the first direction and the second direction in response to energization.