動平衡檢測儀之自動追蹤濾波系統開發

Design of an Auto-Tracking Filter System for Dynamic Balancer

徐邦磊(Pang-Lei Hsu)

指導教授 ： 吳明川

國立臺北科技大學/機電學院/自動化科技研究所/碩士(2006年)

https://doi.org/10.6841/NTUT.2006.00046

摘要

動平衡檢測儀對於旋轉機械的產品檢測佔有相當重要地位，隨著光電產業諸如冷卻風扇、硬碟及光碟機轉速及定位精密度要求嚴苛之下，檢測應用的頻率及檢測精密等級隨之提高，亦促進動平衡技術的發展。由於傳統動平衡檢測儀對於不同的主頻率，需利用人工的方式來調整濾波器的中心頻率使其趨進目前待測物振動訊號之中心頻率，而人工調整很難使兩者相符合，導致待測物不平衡量的大小及相位無法準確得知，除影響到檢測儀之檢測精度與檢測儀的等級，也間接的影響到待測物件之檢測品質。由此可知，動平衡檢測儀自動追蹤濾波系統之設計已成為動平衡檢測儀技術領先的指標。
本研究藉由鎖相迴路以及開關電容濾波器概念，對於現有的風扇動平衡檢測儀設計自動追蹤濾波系統，能精確量測待測物不平衡量，以即時提供線上檢測及品質管制依據，亦能提昇傳統動平衡檢測儀之應用範圍，開拓更高階之檢測技術。

關鍵字

動平衡測試儀 ； 鎖相迴路 ； 開關電容濾波器

並列摘要

Dynamic balancer is an import instrument for the balancing test of rotating machinery. In order to satisfy the higher rotating and positioning accuracy required in the produces such as coolant fan, hard disk driver, CD driver, the development of a high performance dynamic balancer is obvious necessary. At present, the main frequency of balancer is still tuned manually by adjusting the central frequency of filter to fit the central frequency of coolant fan during the test. It is still hard to have a perfect balancing inspection for the coolant fan. Therefore, the development of an auto-tracking filter used in dynamic balancer is an important leading index for the technology.
In this research, the phase-lock loop and switching-capacitor filter techniques are used to design an auto-tracking filter system for the traditional dynamic balancer. The proposed system has the features like on-line inspection for quality control of products, broaden applicative scope of the balancer, and higher inspection ability.

並列關鍵字

Dynamic Balancer ； Phase Lock Loop ； Switched-Capacity Filter

參考文獻

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