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Updated: Jun 5, 2026
08:49
Multimodal Nonlinear Hyperspectral Chemical Imaging Using Line-Scanning Vibrational Sum-Frequency Generation Microscopy
Published on: December 1, 2023
Transient full-field vibration measurement using spectroscopical stereo photogrammetry.
Kaiduan Yue1, Zhongke Li, Ming Zhang
1State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China.
Optics Express
|January 4, 2011
Summary
This study introduces a novel spectroscopical photogrammetric method for vibration measurement. This technique achieves high accuracy, measuring vibrations to within 0.02 mm.
Area of Science:
- Optics and Photonics
- Mechanical Engineering
- Measurement Science
Background:
- Traditional vibration measurement techniques can be limited in accuracy and scope.
- Photogrammetry offers a non-contact method for dimensional measurement.
- Spectroscopy can provide additional information for enhanced analysis.
Purpose of the Study:
- To propose a novel spectroscopical photogrammetric approach for vibration measurement.
- To develop a new calibration method for improved accuracy in photogrammetric measurements.
- To demonstrate the effectiveness of the proposed method in measuring vibrations.
Main Methods:
- Utilized two colored light filters and a CCD color camera to emulate two traditional cameras.
- Developed a novel calibration method focusing on the vibrating object for enhanced accuracy.
- Employed spectroscopical analysis in conjunction with photogrammetry.
Main Results:
- The proposed spectroscopical photogrammetric method was successfully implemented.
- The new calibration method demonstrated superior accuracy compared to traditional camera calibration.
- Test results confirmed a measurement accuracy of 0.02 mm for vibrations.
Conclusions:
- The spectroscopical photogrammetric approach is a viable and accurate method for vibration measurement.
- The object-focused calibration technique significantly enhances measurement precision.
- This novel method offers a promising alternative to existing vibration analysis techniques.
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