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3. 发明授权

US5085759A Apparatus for rapid biological oxidation demand of liquids 失效
标题翻译：用于液体快速生物氧化需求的装置
公开(公告)号：US5085759A
公开(公告)日：1992-02-04
申请号：US436450
申请日：1989-11-13
申请人： Alan R. Harker
发明人： Alan R. Harker
IPC分类号： G01N1/10 , G01N33/18
CPC分类号： G01N33/1806 , G01N2001/1081
摘要： An apparatus is provided for rapidly determining the biochemical oxidation demand (BOD) of a liquid at an on-site location. The apparatus includes a cell body member having a vertically extensive plunger chamber formed therein and a sample holding chamber communicating therewith, a dissolved oxygen sensor for generating a signal in proportion to the amount of dissolved oxygen content in a liquid sample and a culture medium disposed in the sample holding chamber, and a tubular plunger member extensive into the plunger chamber for supporting the dissolved oxygen sensor such that the dissolved oxygen sensor extends into the sample chamber and into contact with the liquid sample and the culture medium. A temperature control assembly, which includes a thermocouple, an internal heat sink element, and a Peltier cell device, is supported by the cell body member such that the internal heat sink element is in close proximity to the sample holding chamber and cooperates with the Peltier cell device for selectively heating and cooling the culture medium and liquid sample in order to maintain same at a predetermined temperature. A computer, programmed to monitor the temperature of the culture medium and the liquid sample via input signals from the thermocouple and provide control signals to the Peltier cell device to maintain the temperature of the culture medium and liquid sample at a substantially constant value, is also programmed to interpret signals from the dissolved oxygen sensor so that the biochemical oxidation demand (BOD) of the liquid sample can be determined.
摘要翻译：提供了用于快速确定现场位置处液体的生物化学氧化需求（BOD）的装置。该装置包括具有形成在其中的垂直广泛的柱塞室的细胞体部件和与其连通的样品保持室，溶解氧传感器，用于产生与液体样品中的溶解氧含量成比例的信号和置于样品保持室，以及广泛地插入柱塞室中的管状柱塞构件，用于支撑溶解氧传感器，使得溶解氧传感器延伸到样品室中并与液体样品和培养基接触。包括热电偶，内部散热元件和珀耳帖元件的温度控制组件由电池本体构件支撑，使得内部散热元件紧邻样品保持室并与珀耳帖配合用于选择性地加热和冷却培养基和液体样品，以便在预定温度下保持其。计算机，其被编程为通过来自热电偶的输入信号监测培养基和液体样品的温度，并向珀耳帖细胞装置提供控制信号以将培养基和液体样品的温度保持在基本恒定的值，也是被编程为解释来自溶解氧传感器的信号，从而可以确定液体样品的生物化学氧化需求（BOD）。

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