发明名称 |
METHOD FOR ACOUSTIC ACCOUNTING OF FISHES IN WATER FLOW |
摘要 |
FIELD: fishery, in particular, process used in systems for controlling and counting of fishes during passage thereof to spawning sites in rivers, channels and fishery constructions. ^ SUBSTANCE: method involves sonicating cross section of flow by means of N discrete sources of vertical acoustic fields spaced apart from one another along said flow. Acoustic field sources are located on carriers staggered is parallel with one another in the vicinity of bottom and surface zones of flow section. Method allows control zones adjoining water surface and bottom to be sonified. Distances between vertical axes of adjacent acoustic fields are set to be exceeding half of their width at boundaries of zone under control and account. ^ EFFECT: increased precision and enhanced reliability in fish accounting. ^ 3 dwg |
申请公布号 |
RU2291615(C1) |
申请公布日期 |
2007.01.20 |
申请号 |
RU20050112848 |
申请日期 |
2005.04.28 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATEL'SKIJ INSTITUT RYBNOGO KHOZJAJSTVA I OKEANOGRAFII" |
发明人 |
KUDRJAVTSEV VALERIJ IVANOVICH |
分类号 |
A01K61/00 |
主分类号 |
A01K61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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