Image measurement technique on vibration amplitude of ultrasonic horn

Yong-bin Zhang; Zhi-qun Wu; Jian-ping Zhu; Jian-guo He; Guang-min Liu

doi:10.1117/12.2035683

10 October 2013 Image measurement technique on vibration amplitude of ultrasonic horn

Yong-bin Zhang, Zhi-qun Wu, Jian-ping Zhu, Jian-guo He, Guang-min Liu

Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 891645 (2013) https://doi.org/10.1117/12.2035683
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

Abstract

The paper proposes a method to measure vibration amplitude of ultrasonic horn which is a very important component in the spindle for micro-electrical-chemical discharging machining. The method of image measuring amplitude on high frequency vibration is introduced. Non-contact measurement system based on vision technology is constructed. High precision location algorithm on image centroid, quadratic location algorithm, is presented to find the center of little light spot. Measurement experiments have been done to show the effect of image measurement technique on vibration amplitude of ultrasonic horn. In the experiments, precise calibration of the vision system is implemented using a normal graticule to obtain the scale factor between image pixel and real distance. The vibration amplitude of ultrasonic horn is changed by modifying the voltage amplitude of pulse power supply. The image of feature on ultrasonic horn is captured and image processing is carried out. The vibration amplitudes are got at different voltages.

Citation Download Citation

Yong-bin Zhang, Zhi-qun Wu, Jian-ping Zhu, Jian-guo He, and Guang-min Liu "Image measurement technique on vibration amplitude of ultrasonic horn", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891645 (10 October 2013); https://doi.org/10.1117/12.2035683

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