基本信息:
- 专利标题： THE CANCELLING OF VIBRATIONS TRANSMITTED THROUGH A FLUID IN A CONTAINING VESSEL
- 专利标题（中）：成液体在容器中，传送的减少的振动。
- 申请号：EP80902061.0 申请日：1980-11-10
- 公开(公告)号：EP0041954A1 公开(公告)日：1981-12-23
- 发明人： CHAPLIN, George Brian Barrie , SMITH, Roderick Alan , BEARCROFT, Robert George
- 申请人： SOUND ATTENUATORS LIMITED , Chaplin, George Brian Barrie
- 申请人地址： Eastgates Colchester, Essex C01 2TW GB
- 专利权人： SOUND ATTENUATORS LIMITED,Chaplin, George Brian Barrie
- 当前专利权人： SOUND ATTENUATORS LIMITED,Chaplin, George Brian Barrie
- 当前专利权人地址： Eastgates Colchester, Essex C01 2TW GB
- 优先权： GB19790039005 19791110
- 国际公布： WO1981001479 19810528
- 主分类号： G10K11
- IPC分类号： G10K11 ; H01F27
摘要：
Method of and apparatus for reducing the vibration (e.g. noise) transmitted into the environment of a fluid-containing vessel by a vibration source within the vessel. The invention relies on an "active" attenuation method in which a specially tailored cancelling vibration is applied to the fluid in the vessel, whereby at least partial cancellation of the vibration from the source occurs within the fluid. The invention has particular application to reducing the environmental noise nuisance caused by the core (2) in an oil-filled transformer tank (1), a vibrator (7) being energised by a waveform generator (8) and injecting the cancelling vibration into the oil (3) via a diaphragm (5). The output from vibration sensors (M u....M u) can be used to control the generator (8), The invention can also be applied to pumps and fluid filled pipes.