发明授权
- 专利标题： Apparatus for monitoring the toxicant contamination of water by using aquatic animals
- 专利标题（中）： 通过使用水生动物监测水的毒物污染的装置
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申请号： US93034申请日： 1987-09-04
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公开(公告)号： US4888703A公开(公告)日： 1989-12-19
- 发明人: Kenji Baba , Hayao Yahagi , Shoji Watanabe , Naoki Hara , Mikio Yoda , Shunji Mori , Takashi Iida , Takashi Katori , Masahiko Ishida
- 申请人： Kenji Baba , Hayao Yahagi , Shoji Watanabe , Naoki Hara , Mikio Yoda , Shunji Mori , Takashi Iida , Takashi Katori , Masahiko Ishida
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Hitachi Engineering Co., Ltd.,Hitachi, Ltd.
- 当前专利权人： Hitachi Engineering Co., Ltd.,Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX61-210798 19860909; JPX61-210800 19860909; JPX61-278830 19861125; JPX61-288849 19861205; JPX62-6000 19870116; JPX62-9878 19870121
- 主分类号： G01N33/18
- IPC分类号： G01N33/18 ; G06T7/00
摘要：
A fish is bred in a transparent basin, into which water to be tested is supplied. A light source and a television camera are arranged in such a manner that images of the fish are taken by the camera as a silhouette. From the thus obtained fish images, the frequency distribution of the gravity centers of the fish images in the direction of the depth of water are obtained. The abnormality of the behavior of the fish is detected by comparison of the obtained frequency distribution with a reference distribution provided in advance.
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