Hall Sensor Flywheel Measurement for IFW Energy Conversion Efficiency
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Solution Overview
Problem
Current methods for measuring energy conversion efficiency in inertia friction welding (IFW) processes are limited, as they require contact measurements or structural modifications to the IFW machine, making them costly and impractical for real-time monitoring.
Innovation Solution
A non-contact system using a Hall sensor and magnet on the flywheel, combined with a data acquisition and processing module, allows for real-time measurement of rotational speed and energy conversion efficiency without altering the existing IFW machine structure, employing a stabilized DC power supply to power the Hall sensor and calculate kinetic energy and inherent moment of resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dynamic torque sensor is used to detect the torque of the friction interface, then the energy conversion efficiency can be calculated, but the structure of the IFW machine must be changed to connect the sensor and spindle by a coupling, which increases manufacturing and maintenance costs
Solution Approach 1:
The patent replaces the mechanical torque sensor measurement system with a magnetic field-based Hall sensor system. Instead of using a dynamic torque sensor that requires mechanical coupling to the spindle, the invention uses a Hall sensor to detect the magnetic field signal from a magnet on the flywheel, thereby measuring rotational speed and calculating energy conversion efficiency without mechanical contact or structural modification.
Solution Approach 2:
The patent introduces a magnet as an intermediary element attached to the flywheel, which generates a magnetic field that can be detected by the Hall sensor. This intermediary enables non-contact measurement of rotational speed, allowing energy conversion efficiency to be calculated without direct mechanical connection or structural modification to the IFW machine.
2Power
If the major motor is disconnected from the flywheel and spindle to allow kinetic energy conversion, then the welding process can proceed, but the VCMM method cannot be used to measure physical parameters in the welding process
Solution Approach 1:
The patent uses a magnet attached to the flywheel as an intermediary that continues to provide measurement capability even when the motor is disconnected. The magnet's magnetic field is detected by the Hall sensor to measure rotational speed during the welding process, enabling continuous monitoring of physical parameters without requiring the motor to remain connected.
Solution Approach 2:
The patent replaces the electrical measurement method (VCMM) that requires motor connection with a magnetic field-based measurement system using Hall sensor and magnet. This substitution allows measurement of rotational speed and calculation of energy conversion efficiency during the welding process when the motor is disconnected from the flywheel and spindle.
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
Enables accurate, automatic, and cost-effective measurement of energy conversion efficiency during the IFW process, supporting numerical simulation and joint quality control without modifying the machine's structure.
Implementation Method 1
a Hall sensor is provided beside a flywheel of the IFW machine... a magnet is provided on the flywheel... the data acquisition module acquires a Hall electric potential change caused by a relative movement between the magnet and the Hall sensor
Data Source
AI summary
The present disclosure provides a system and method for measuring energy conversion efficiency of an inertia friction welding (IFW) process in a non-contact manner. The system includes an IFW machine, a Hall sensor, a data acquisition module, a processing module and a stabilized direct current (DC) power supply. The stabilized DC power supply provides electrical energy for the Hall sensor. The Hall sensor is provided beside a flywheel of the IFW machine, so that the flywheel is within a detection range of the Hall sensor. A magnet is provided on the flywheel. The data acquisition module acquires a Hall electric potential change caused by a relative movement between the magnet and the Hall sensor during the IFW process, and transmits the Hall electric potential change to the processing module to calculate the energy conversion efficiency of the IFW machine.