Acoustic noise cancellation by phase alignment of cooling fans

被引：4

作者：

Guthridge, Scott ^{[1
]}

Harper, Richard E. ^{[1
]}

Marr, Harry ^{[1
]}

Abali, Bulent ^{[1
]}

机构：

[1] IBM Res, PO Box 218, Yorktown Hts, NY 10598 USA

来源：

TWENTY-THIRD ANNUAL IEEE SEMICONDUCTOR THERMAL MEASUREMENT AND MANAGEMENT SYMPOSIUM, PROCEEDINGS 2007 | 2007年

关键词：

noise reduction; noise cancellation; power; cooling;

D O I：

10.1109/STHERM.2007.352412

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

With increasing power consumption of computer systems, faster and larger cooling fans are used and acoustic noise management becomes difficult. In this paper, we show that by locking a pair of cooling fan motors into a common frequency and 180 degrees out of phase, the dominant tone most perceptible by human ear can be reduced.

引用

页码：131 / +

页数：2