Related Experiment Video
Updated: Jan 17, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
Published on: June 9, 2016
An Effective Method for Calculation of Mutual Inductance Between Rectangular Coils at Arbitrary Positions in Space
Junlin Chen1,2, Guofeng Yao1,2, Min Wang1,2
1Key Laboratory of CNC Equipment Reliability, Ministry of Education, School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China.
This study introduces an efficient method for calculating mutual inductance between coils, crucial for aerospace applications like solar panel deployment. The new technique offers high accuracy and reduced computation time compared to existing methods.
Area of Science:
- * Electromagnetism and its applications in aerospace engineering.
- * Computational physics and numerical methods.
Background:
- * Mutual inductance between coils is vital for electromagnetic torque generation in aerospace, particularly for solar panel deployment.
- * Existing methods for calculating mutual inductance can be computationally intensive, necessitating more efficient approaches.
Purpose of the Study:
- * To develop a straightforward and efficient method for calculating mutual inductance between arbitrarily positioned rectangular coils.
- * To extend this method for calculating mutual inductance in rectangular multi-turn coils using superposition.
- * To validate the accuracy and efficiency of the proposed computational method.
Main Methods:
- * Application of the Kalantarov-Zeitlin method and the Neumann formula for mutual inductance calculation.
- * Development of a superposition principle-based method for multi-turn rectangular coils.
- * Validation through comparison with published literature data and experimental measurements.
Main Results:
- * The proposed method demonstrates shorter computation times compared to existing techniques.
- * Calculated mutual inductance values closely match results from other methods and experimental data.
- * Achieved calculation accuracy exceeds 95%.
Conclusions:
- * The presented method provides an accurate and efficient means for determining mutual inductance in rectangular coils.
- * This reliable computational tool supports the precise calculation of electromagnetic forces for aerospace applications, such as solar array deployment.
- * The findings contribute to advancements in electromagnetic actuation systems for space technology.
Related Concept Videos
Mutual Inductance
When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. Therefore, this type of emf is called...
Inductance: Solid Cylindrical Conductor
Given the uniform current distribution, the magnetic field Hx and flux density Bx inside the conductor are...
Calculation of Self-inductance
Since the effect of the induced electric field and the back EMF generated depends on the rate of change of current and the self-inductance, the inductance...
Inductance: Single-Phase And Three-Phase Line
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
Series and Parallel Inductors
For a series connection of N inductors, each carrying the same current, applying Kirchhoff's voltage law unveils a crucial relationship. Substituting the expression for...
Magnetic Field Of A Current Loop

