垂直探鱼仪换能器的改进  

Improvement on The Transducer of Vertical Fish Finder

作　　者：王清池[1] 

机构地区：[1]厦门大学海洋系

出　　处：《海洋技术》1992年第2期54-57,共4页Ocean Technology

摘　　要：研究目前国内垂直探鱼仪使用的夹心式换能器存在的问题。提出前盖板采用多孔结构的轻金属铝,后盖板采用重金属钢,并加预应力螺杆等改进措施,从而提高夹心式换能器的电声性能。The problems excisting in the sandwich transducer (recently used in the domestic vertical fish finder) have been studied in this paper. It is concluded that when light metal aluminium with porous structure is used for front cover, heavy metal steel is used for back cover and the prest- ressed bolt is also added, the electro-acoustic properties of the trans- ducer can be improved.

关 键 词：垂直探鱼仪 夹心型 换能器 结构 

分 类 号：S951[农业科学—水产养殖]