Chamber Support Feedforward Control for Transfer Vibration
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Solution Overview
Problem
Existing image inspection apparatuses face challenges in reducing chamber vibration during sample transfer, leading to inaccuracies and reduced throughput, as existing feedforward and feedback control techniques are not effective in compensating for the reaction forces caused by the transferring device's movement.
Innovation Solution
The implementation of a support device with circuitry that obtains predefined motion data of the transferring device, determines the movement and resulting forces, and applies a compensation force to counteract the reaction forces, using feedforward control to actively dampen vibrations before the transferring device moves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If feedforward control is applied to counteract reaction forces, then chamber vibration is reduced, but device complexity increases
Solution Approach 1:
The system obtains predefined motion data associated with the transferring device and determines movement before the transferring device actually moves. This preliminary determination allows the support device to apply compensation forces in advance, counteracting reaction forces before they cause chamber vibration, thereby resolving the contradiction between vibration reduction and system complexity.
Solution Approach 2:
The circuitry continuously monitors the transferring device motion and dynamically adjusts the compensation force applied by the support device. This feedback mechanism ensures effective vibration counteraction while optimizing control complexity by using predefined motion data combined with real-time adjustments.
2Productivity
If the transferring device moves faster to increase throughput, then productivity improves, but chamber vibration increases
Solution Approach 1:
The support device applies a compensation force that is equal in magnitude and opposite in direction to the reaction force generated by the transferring device motion. By determining the movement based on predefined motion data before the transferring device moves, the system counteracts the reaction force that would otherwise cause chamber vibration, allowing faster transfer speeds without vibration penalties.
3Strength
If the transferring device is stiffly coupled to the chamber for structural integrity, then strength improves, but reaction forces cause chamber vibration
Solution Approach 1:
The support device acts as an intermediary between the transferring device and the chamber. It receives the reaction forces from the stiffly coupled transferring device and applies equal and opposite compensation forces, isolating the chamber from vibration while maintaining the beneficial structural integrity of the stiff coupling.
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
This approach significantly reduces chamber vibration by up to 90% and increases sample transfer throughput by 20%, improving the precision and efficiency of the inspection process while minimizing errors and the need for additional monitoring systems.
Implementation Method 1
determine, based on the movement, a first force to be applied to the chamber caused by the movement
Implementation Method 2
cause the support device to apply a second force to the chamber for counteracting the first force
Data Source
AI summary
Systems, apparatuses, and methods for reducing vibration of a chamber may include obtaining predefined motion data associated with a transferring device stiffly coupled to a chamber; determining movement of the transferring device based on the predefined motion data before the transferring device moves; determining, based on the movement, a first force to be applied to the chamber caused by the movement; and causing a support device of the chamber to apply a second force to the chamber to counteract the first force when the transferring device moves.