Non-Contact Measurement of Small-Module Gears Using Optical Coherence Tomography
Source abstract
Abstract
Due to the small size and harsh transmission conditions of small-module gears, it is very difficult to measure gear characteristics with a modulus smaller than 1 mm. We proposed an optical coherence tomography (OCT) method for measuring small-module gears. Testing of a 30-tooth copper gear with a small modulus of 0.5 mm was carried out for the measurement of its modulus, tooth parameter, tooth number, pressure angle, modification coefficient, and tooth thickness by using OCT. In addition, the influencing factors on the measurement were discussed. The whole teeth profile of a 0.2 mm modulus gear was imaged by processing of the data collected from different clamping angles. Compared with the visual imaging without depth information and small-scale microscopic imaging, the OCT method has shown its superiority, and it has potential in the application of the measurement of micro gears with a small modulus of less than 0.2 mm.
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Research context
OpenAlex topics: Optical Coherence Tomography Applications · Photoacoustic and Ultrasonic Imaging · Image Processing Techniques and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Optics, Terahertz and Non-Destructive Testing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
School of Mechanical and Electrical Engineering, Putian University, Putian 351100, China
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Funding
National Natural Science Foundation of China · State Key Laboratory of Mechanical System and Vibration · Shanghai Natural Science Fund · Putian college campus research project fund
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Show source-provided references
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