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公开(公告)号:US4132899A
公开(公告)日:1979-01-02
申请号:US707655
申请日:1976-07-22
IPC分类号: G01F23/292 , G01N21/26
CPC分类号: G01F23/2925 , Y10S250/906
摘要: A light-emitting element and a light-responsive element are optically connected with each other through a U-shaped optical guide. An output level of the light-responsive element indicates whether the U-shaped guide is above or below the liquid-level.
摘要翻译: 发光元件和光响应元件通过U形光导件彼此光学连接。 光响应元件的输出电平表示U形引导件是否高于或低于液位。