Velocity Pattern Synchronization for Shape Measuring Apparatus
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Solution Overview
Problem
Conventional shape measuring apparatuses experience control lag due to unsynchronized acceleration/deceleration timing with control sampling cycles, leading to inaccuracies and reduced measurement efficiency.
Innovation Solution
A method to generate and correct velocity patterns for the shape measuring apparatus, ensuring synchronization with control sampling cycles by adjusting the timing of acceleration and deceleration phases, particularly through calculations involving control sampling cycles and insertion of adjustment sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If velocity pattern is generated without synchronization to control sampling cycle, then measurement efficiency is improved through faster probe movement, but control lag occurs leading to measurement inaccuracies
Solution Approach 1:
The system continuously monitors the timing relationship between velocity pattern events and control sampling cycle events, and dynamically adjusts the velocity pattern to maintain synchronization. This feedback mechanism ensures that acceleration and deceleration timing is corrected based on actual timing deviations, preventing control lag while maintaining high measurement efficiency
Solution Approach 2:
The velocity pattern is made dynamically adjustable by introducing correction amounts for acceleration and deceleration timing. Instead of using a fixed velocity pattern, the system modifies the velocity pattern in real-time based on synchronization requirements, allowing the probe to maintain optimal speed while staying synchronized with control sampling cycles
2Device complexity
If acceleration and deceleration timing is not adjusted, then velocity pattern generation is simpler and faster, but control lag accumulates causing probe position errors
Solution Approach 1:
The system performs preliminary calculations to determine correction amounts for acceleration and deceleration timing before executing the velocity pattern. By pre-calculating the necessary adjustments based on timing relationships with control sampling cycles, the system prepares synchronization corrections in advance, ensuring control accuracy without adding significant complexity to the execution phase
Data Source
AI summary
There is provide a method for controlling a shape measuring apparatus that synchronize an acceleration/deceleration changing timing of a velocity pattern with a control sampling cycle, and prevents a control lag.Based on a shape of a movement path set based on preliminarily-obtained shape data of an object to be measured, a velocity pattern for a probe to move along the movement path.It is determined whether a velocity changing timing of the velocity pattern is synchronized with a control sampling cycle of a shape measuring apparatus.When the velocity changing timing of the velocity pattern is not synchronized with the control sampling cycle, the velocity pattern is corrected such that the velocity changing timing of the velocity pattern is synchronized with the control sampling cycle of the shape measuring apparatus.