Hall Sensor Passage Gate Wear Reduction
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Solution Overview
Problem
Conventional passage barriers with rotary encoders or potentiometers for angle and position determination suffer from short service life due to wear, particularly in mechanically operated systems, as they involve moving parts that are prone to mechanical stress and wear.
Innovation Solution
A passage barrier system utilizing a Hall sensor as a rotary encoder with a magnet carrier and driver, allowing for non-contact angle and position determination from 0° to 360°, providing high accuracy and resistance to wear and mechanical impacts, and enabling easy installation and low-cost maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rotary encoders or potentiometers are used for angle and position determination, then the system can determine position and angle, but the service life is short due to wear from moving parts
Solution Approach 1:
The patent replaces mechanical rotary encoders and potentiometers with a Hall sensor-based magnetic field detection system. The Hall sensor detects the position and angle of the closing device by sensing changes in magnetic field strength caused by a rotating magnet, eliminating mechanical contact and wear while maintaining measurement precision.
Solution Approach 2:
The patent introduces a magnet as an intermediary between the closing device and the Hall sensor. The magnet rotates with the closing device and modulates the magnetic field, allowing the Hall sensor to indirectly detect position and angle information without mechanical contact.
2Measurement precision
If mechanical rotary encoders are used, then angle determination is possible, but the system is prone to wear and mechanical stress
Solution Approach 1:
The patent substitutes mechanical angle determination mechanisms with a magnetic field-based detection system. The Hall sensor measures the angular position by detecting the magnetic field orientation and strength changes as the magnet rotates, achieving precise angle determination without mechanical wear.
3Measurement precision
If potentiometers with sliding contacts are used, then position determination is achieved, but wear cannot be avoided
Solution Approach 1:
The patent replaces potentiometers with sliding contacts with a contactless Hall sensor system. The Hall sensor detects position by measuring magnetic field strength variations as the magnet rotates, eliminating the sliding contact mechanism and its associated wear problems while maintaining position determination accuracy.
4Productivity
If conventional rotary encoders are used, then the system can operate, but maintenance costs are high due to wear
Solution Approach 1:
The patent replaces mechanical rotary encoders with a Hall sensor-based magnetic detection system. This substitution eliminates wear-prone mechanical components, significantly reducing maintenance requirements and costs while ensuring continuous operation without degradation from friction and wear.
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 solution offers improved durability and accuracy in determining the position and angle of the locking device, reducing wear and mechanical stress, while allowing for precise control and long-term reliability with minimal maintenance costs.
Implementation Method 1
A sensor 6 and in particular a so-called Hall sensor is preferably used as the rotary encoder
Data Source
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AI summary
The invention relates to a passage gate (1) for closing a passageway for persons (2), comprising at least one carrier (3) with at least one locking device (4), which is mounted pivotably and/or rotatably on the carrier (3). The passage gate (1) is characterized in that it comprises a Hall sensor (6) and a magnet carrier (9) for the contactless determination of the position and/or angle of the locking device (4).