Balancing Section Reduces Vibration in Shape Measuring Device
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Solution Overview
Problem
Conventional shape measuring devices face challenges in achieving high-speed and accurate surface shape measurement over a wide range while maintaining a compact configuration, as increasing the measurement range or speed leads to vibration issues that require larger and heavier devices.
Innovation Solution
A shape measuring device with a light projecting section emitting light of multiple peak wavelengths, a movable section with a reciprocating optical system, and a balancing section, which allows for precise surface shape acquisition without significant vibration, enabling high-speed and accurate measurements across a wide range without increasing device size or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the moving range of the optical system is increased to expand the measurement range, then the measurement range is improved, but vibration of the entire shape measuring device increases
Solution Approach 1:
The patent introduces a balancing section with a counterweight that offsets the weight of the movable section. This counterbalancing mechanism reduces the vibration generated when the optical system moves over a wide range, allowing the device to maintain stability while expanding the measurement range.
2Productivity
If the moving speed of the optical system is increased to accelerate the measurement, then the measurement speed is improved, but vibration of the entire shape measuring device increases
Solution Approach 1:
The balancing section with counterweight compensates for the inertial forces generated during high-speed movement of the optical system. This reduces vibration even when the moving speed is increased to accelerate measurement, allowing high productivity without compromising device stability.
3Stability of the object's composition
If the shape measuring device is increased in size and weight to prevent vibration, then vibration is reduced, but the device becomes less compact
Solution Approach 1:
Instead of increasing the overall device size and weight to prevent vibration, the patent uses a counterbalancing mechanism where the balancing section offsets the movable section's weight. This approach reduces vibration while maintaining a compact device configuration, as the counterweight integrates into the existing structure rather than requiring additional bulk.
4Stability of the object's composition
If the shape measuring device is increased in size and weight to prevent vibration, then vibration is reduced, but the device becomes heavier
Solution Approach 1:
The balancing section with counterweight offsets the weight of the movable optical system components. This allows vibration reduction without increasing the overall device weight, as the counterbalancing mass is integrated into the existing structure rather than adding net weight to the system.
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 high-speed and accurate surface shape measurement over a wide range while maintaining a compact device configuration, reducing vibration and the need for increased size or weight, by using a reciprocating mechanism with a balancing section to stabilize the device and a light receiving section with multiple peak wavelengths for precise interference pattern analysis.
Implementation Method 1
generate interference light of the measurement light reflected by the measuring object and the reference light reflected by the reference body
Data Source
AI summary
To provide a shape measuring device capable of measuring a surface shape of a measuring object at high speed and with high accuracy in a wide measurement range while configuring the shape measuring device compact. A movable section 141 and a balancing section 142 are supported by a supporting section 125 and reciprocatingly moved by a driving unit 150 with respect to the supporting section 125 in opposite directions each other.