公开(公告)号：US3654540A

公开(公告)日：1972-04-04

申请号：US3654540D

申请日：1971-01-15

Applicant: CAVITRON CORP

Inventor： HONIG WILLIAM M ,  PASCHKE RICHARD H ,  HAGGAG JACOB

IPC: B06B1/02 ,  H01V9/00

CPC classification number: B06B1/0261 ,  B06B2201/58

Abstract: A feedback coil is placed in surrounding relation to a magnetostrictive member which is vibrating under the influence of a drive coil being energized by a power amplifier. Ideally, the voltage induced in the feedback coil should be proportional only to the vibrational amplitude of the magnetostrictive member. The induced voltage is fed back to the input of the power amplifier insuring that the member is vibrating at one of its resonant frequencies. The feedback coil is designed so that there is no transformer coupling between the feedback and drive coils. The feedback coil can be positioned along the length of the device in one of two ways, so as to maximize the induced voltage. Each way relies on a different magnetostrictive effect.

Abstract translation: 反馈线圈与磁致伸缩构件的周围关系放置，该磁致伸缩构件在由功率放大器激励的驱动线圈的影响下振动。 理想地，在反馈线圈中感应的电压应仅与磁致伸缩元件的振动振幅成比例。 感应电压被反馈到功率放大器的输入端，确保该部件在其谐振频率之一处振动。 反馈线圈被设计成使得在反馈和驱动线圈之间不存在变压器耦合。 反馈线圈可以以两种方式之一沿着装置的长度定位，以便最大化感应电压。 每种方式都依赖于不同的磁致伸缩效应。