Acoustic transducer calibration system

被引：2

作者：

Baldwin, KC ^{[1
]}

Mayer, L ^{[1
]}

McLeod, A ^{[1
]}

Millar, J ^{[1
]}

机构：

[1] Univ New Hampshire, Chase Ocean Engn Lab, Ctr Ocean Engn, Durham, NH 03824 USA

来源：

OCEANS 2003 MTS/IEEE: CELEBRATING THE PAST...TEAMING TOWARD THE FUTURE | 2003年

关键词：

D O I：

10.1109/OCEANS.2003.178224

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Multibeam sonars are being used increasingly to image fish. To realize their quantitative potential for measuring the numerical density of fish and other aquatic organisms, it is essential that they be calibrated. This can be done by the use of standard targets. The calibration of narrow beam acoustic arrays requires precise angular control of the transducer under test. Precision is defined as 0.1degrees. This degree of control is achievable with a precision rotary table typically used in the CNC machining industry. This paper describes the system specifications and the development of the LabView interface that coordinates position and acoustic data acquisition. The initial evaluation of the rotary table for repeatability and possible backlash demonstrated that the system was within the required specifications. Finally, representative acoustic measurements made with a Kongsberg-Simrad SM 2000 and Reson SeaBat 8101 multi-beam sonars using the new system are presented.

引用

页码：2093 / 2099

页数：7