电动车胎噪主被动控制
“最近现代汽车发布了路噪主动降噪技术,至于他们的技术是不是第一,我们肯定不得而知也不能全信一面之词,但是现代的技术解释,非常直接易懂,值得学习”。
主动降噪实现的声学基础是声波的相消干涉,利用人为附加的次级声源,产生与初级声源幅值相等,相位相反的声波,两声波在空间相干性叠加,形成消声“静区”,从而消除指定空间内的低频噪声。
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAxLzI4MTAvMjE0MjEyNTQxXzJfMjAyMTAxMjgxMDUwMzAzMDM=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAxLzI4MTAvMjE0MjEyNTQxXzNfMjAyMTAxMjgxMDUwMzA1ODQ=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAxLzI4MTAvMjE0MjEyNTQxXzRfMjAyMTAxMjgxMDUwMzE2.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAxLzI4MTAvMjE0MjEyNTQxXzVfMjAyMTAxMjgxMDUwMzE0NzU=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAxLzI4MTAvMjE0MjEyNTQxXzZfMjAyMTAxMjgxMDUwMzE4NTA=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfN18yMDIxMDEyODEwNTAzMjQ5MA==.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfOF8yMDIxMDEyODEwNTAzMjg5Nw==.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfOV8yMDIxMDEyODEwNTAzMzQyOA==.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfMTFfMjAyMTAxMjgxMDUwMzQ1MDY=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfMTJfMjAyMTAxMjgxMDUwMzQ5Mjg=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfMTNfMjAyMTAxMjgxMDUwMzU0Mjk=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfMTRfMjAyMTAxMjgxMDUwMzU4NTA=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDEvMjgxMC8yMTQyMTI1NDFfMTVfMjAyMTAxMjgxMDUwMzYyODc=.jpg)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
扩展阅读:
汽车ANC主动降噪开发技术
汽车ANC主动降噪技术
![](http://n4.ikafan.com/assetsj/blank.gif)
赞 (0)
“最近现代汽车发布了路噪主动降噪技术,至于他们的技术是不是第一,我们肯定不得而知也不能全信一面之词,但是现代的技术解释,非常直接易懂,值得学习”。
主动降噪实现的声学基础是声波的相消干涉,利用人为附加的次级声源,产生与初级声源幅值相等,相位相反的声波,两声波在空间相干性叠加,形成消声“静区”,从而消除指定空间内的低频噪声。
扩展阅读: