18404023. POSITION DETECTION DEVICE simplified abstract (TDK CORPORATION)
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POSITION DETECTION DEVICE
Organization Name
Inventor(s)
POSITION DETECTION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18404023 titled 'POSITION DETECTION DEVICE
The patent application describes a position detection device that uses a magnet and a magnetic sensor to determine the position of the magnet based on the detected magnetic field.
- The device includes a magnet that generates a magnetic field and a magnetic sensor that detects the magnetic field and generates a detection value corresponding to the position of the magnet.
- The magnetic field changes direction within a plane at a reference position.
- The magnetic sensor consists of four MR elements, each with a first magnetic layer that can change magnetization direction within a corresponding plane.
- The planes of the magnetic field and the MR elements intersect at a dihedral angle other than 90 degrees, affecting the detection value based on magnetization direction.
Potential Applications: - Position tracking in industrial machinery - Navigation systems in vehicles - Robotics for precise movement control
Problems Solved: - Accurate position detection - Reliable magnet tracking - Improved sensor sensitivity
Benefits: - Enhanced precision in position tracking - Increased efficiency in navigation systems - Better control in robotic applications
Commercial Applications: Title: Advanced Position Detection Device for Industrial Machinery This technology can be utilized in manufacturing plants, warehouses, and logistics centers to improve automation processes and increase productivity.
Questions about the technology: 1. How does the device ensure accurate position detection? - The device uses MR elements and a magnet to detect the magnetic field and determine the position based on the magnetization direction. 2. What are the potential challenges in implementing this technology in real-world applications? - Some challenges may include calibration, interference from external magnetic fields, and durability in harsh environments.
Original Abstract Submitted
A position detection device includes a magnet that generates a magnetic field to be detected, and a magnetic sensor. The magnetic sensor detects the magnetic field to be detected and generates a detection value corresponding to the position of the magnet. The magnetic field to be detected has a first direction that changes within a first plane, at a reference position in the first plane. The magnetic sensor includes four MR elements. Each of the MR elements includes a first magnetic layer having first magnetization that can change in direction within a second plane corresponding to the each of the MR elements. The first plane and the second plane intersect at a dihedral angle α other than 90°. A detection value depends on the direction of the first magnetization.
