公开(公告)号：US5146169A

公开(公告)日：1992-09-08

申请号：US582425

申请日：1990-09-13

申请人： Shinya Morishita ,  Kenichi Suzuki ,  Masae Oohori ,  Masahiko Nakada

发明人： Shinya Morishita ,  Kenichi Suzuki ,  Masae Oohori ,  Masahiko Nakada

IPC分类号： G01N27/30 ,  G01N27/333 ,  G01N27/38 ,  G01N27/416 ,  G01N33/28

CPC分类号： G01N33/2876

摘要： A reference electrode is formed of lead, zinc, tin, indium, cadmium, magnesium, or any alloy thereof. A pair of electrodes comprising the reference electrode and a responding electrode made of a conductive solid, when placed in oil, develop a potential difference varying with the acidity or basicity of the oil and thus enable the efficient determination of the acidity or basicity.

摘要翻译： 参考电极由铅，锌，锡，铟，镉，镁或其任何合金形成。 包括参比电极的一对电极和由导电固体制成的响应电极放置在油中时，产生随着油的酸度或碱度变化的电位差，从而能够有效地测定酸度或碱度。

公开(公告)号：US4950378A

公开(公告)日：1990-08-21

申请号：US215804

申请日：1988-07-06

申请人： Yasuhiro Nagata

发明人： Yasuhiro Nagata

IPC分类号： G01N27/327 ,  G01N27/38

CPC分类号： G01N27/38

摘要： An electrode refreshing arrangement of a biosensor includes a constant reverse bias voltage arranged to be supplied between a working electrode and a reference electrode, so as to thereby refresh the working electrode, that is, to remove the disturbance film or substance formed on the surface of the working electrode as a result of the enzyme reaction, thus reviving the activity of the working electrode.

摘要翻译： 生物传感器的电极刷新装置包括：恒定的反向偏置电压，被配置为供给到工作电极和参考电极之间，从而刷新工作电极，即除去形成在表面上的干扰膜或物质 作为酶反应的结果的工作电极，从而恢复了工作电极的活性。

公开(公告)号：US4833909A

公开(公告)日：1989-05-30

申请号：US142523

申请日：1988-01-11

申请人： Hans Matthiessen

发明人： Hans Matthiessen

IPC分类号： G01N1/00 ,  G01N27/38 ,  G01N27/42 ,  G01N33/00

CPC分类号： G01N33/0062

摘要： The invention is directed to an apparatus for sensing a gaseous component in air and includes a housing having a flushing chamber through which an air sample can flow via a closeable inlet and a closeable outlet. The sensor is mounted in a measuring chamber above the flushing chamber and is hermetically sealed from its ambient not only during the time that the flushing chamber is flushed with the air sample; rather, and most important, during the measuring operation itself in order that any influences from a diffusion of the ambient air into the measuring chamber is prevented. For this purpose and to determine the sample quantity diffusing into the measuring chamber at the beginning of a specific period of time, the inlet as well as the outlet of the flushing chamber is closed while at the same time the diffusion passage interconnecting the two chambers is opened. After the time period has run, the diffusion passage is again closed.

摘要翻译： 本发明涉及一种用于感测空气中的气态组分的设备，并且包括具有冲洗室的壳体，空气样品可以经由可关闭的入口和可闭合的出口流过。 传感器安装在冲洗室上方的测量室中，并且不仅在冲洗室与空气样品冲洗的时间内气密密封， 而且最重要的是在测量操作本身期间，以防止环境空气扩散到测量室中的任何影响。 为此，为了确定在特定时间段开始时扩散到测量室中的样品量，冲洗室的入口以及出口被关闭，同时将两个室相互连接的扩散通道是 开了 在时间段运行之后，扩散通道再次关闭。

公开(公告)号：US4822474A

公开(公告)日：1989-04-18

申请号：US44876

申请日：1987-04-30

申请人： Daniel R. Corrado

发明人： Daniel R. Corrado

IPC分类号： G01N27/38 ,  G01N27/49 ,  G01N27/46

CPC分类号： G01N27/404 ,  G01N27/38

摘要： A residual analyzer assembly including an analyzer probe, typically of the amperometric type having a stable zero calibration, and a working fluid sampler system having means for backflushing the flow so as to periodically cleanse the system. The residual analyzer probe having two bare electrodes operating as a working electrode and a counter electrode. The working electrode being formed in a double spiral helix with the counter electrode being formed in an outer peripheral ring closely adjacent the working electrode. The probe also including a third electrode within an electrolytic solution and positioned behind a membrane located directly behind the working electrode. The three electrode system operated utilizing a potentiostat type circuit. The working fluid sampler system adapted to sample a portion of the working fluid flow and maintain a constant pressure into a flow block. A controlled amount of reagent being added for proper residual analyzation of the sample. The sample flow being directed into an impeller chamber which provides a constant flow velocity directly adjacent the exposed electrodes of the analyzer probe. A backflush mechanism is also provided to cleanse the internal flow passageways of the system on a periodic basis.

摘要翻译： 一种残余分析器组件，其包括通常具有稳定的零校准的电流型的分析器探针，以及具有用于反冲流以便周期性地清洁系统的装置的工作流体取样器系统。 剩余分析器探针具有作为工作电极工作的两个裸电极和对电极。 工作电极形成为双螺旋螺旋，相对电极形成在紧邻工作电极的外周环中。 探针还包括在电解溶液内的第三电极并且位于工作电极正后方的膜后面。 三电极系统利用恒电位仪电路操作。 工作流体取样器系统适于对工作流体流的一部分进行采样并将恒定压力保持在流动块中。 加入受控量的试剂以适当地残留分析样品。 样品流被引导到叶轮室中，其提供与分析器探针的暴露电极直接相邻的恒定流速。 还提供反吹机构以周期性地清洁系统的内部流动通道。

公开(公告)号：US4803869A

公开(公告)日：1989-02-14

申请号：US53302

申请日：1987-05-22

申请人： Michael J. Barcelona ,  Edward E. Garske ,  Michael R. Schock

发明人： Michael J. Barcelona ,  Edward E. Garske ,  Michael R. Schock

IPC分类号： G01N27/38 ,  G01N33/18

CPC分类号： G01N33/1893

摘要： An improved portable apparatus is provided for the flow-through measurement of analytical parameters of liquids, particularly ground water. A concave end design, employing transparent materials, together with selected transparent pipe sections, affords an adjustable cell volume to minimize turbulence at the point of analysis, while also monitoring electrode fouling.

摘要翻译： 提供了一种改进的便携式装置，用于流体测量液体，特别是地下水的分析参数。 使用透明材料的凹端设计与所选择的透明管段一起提供可调节的电池体积以最小化分析点的湍流，同时还监测电极结垢。

公开(公告)号：US4745798A

公开(公告)日：1988-05-24

申请号：US30234

申请日：1987-03-26

申请人： Hans-Joachim Scherer ,  Andreas Gazinski

发明人： Hans-Joachim Scherer ,  Andreas Gazinski

IPC分类号： G01N1/10 ,  G01N15/06 ,  G01N27/38 ,  G01N15/00

CPC分类号： G01N27/38

摘要： A method for measuring parameters in suspensions containing particles which have a specific gravity greater than the liquid, by means of measuring probes in the interior of a quiescent-flow vessel. The method includes tangentially introducing a stream of the suspension into the flow vessel at one end thereof and tangentially withdrawing it therefrom at the other end thereof, under the same direction of rotation. The device is adapted for measuring a descending or an ascending stream, whereby, for measuring an ascending stream, the diameter at the top of the vessel is larger than the diameter at the bottom.

摘要翻译： 通过在静态流动容器的内部的测量探针来测量含有比重大于液体的比重的颗粒的悬浮液中的参数的方法。 该方法包括将悬浮液的一端在其一端切向引入流动容器中，并在相同的旋转方向上将其从其另一端切向地引出。 该装置适于测量下降流或上升流，由此，为了测量上升流，容器顶部的直径大于底部的直径。

公开(公告)号：US4701252A

公开(公告)日：1987-10-20

申请号：US906633

申请日：1986-09-10

申请人： Masahiro Oita

发明人： Masahiro Oita

IPC分类号： G01N27/38 ,  G01N27/46

CPC分类号： G01N27/38

摘要： An automatically depolarizing electrode system for analyzing ions and gases in a solution, especially in blood. A magnetic stirrer is placed in a test chamber of the electrode system and rubs the sensing surface of the electrode which constitutes the wall of the test chamber. During analysis, the rotating stirrer prevents blood from coagulating on the sensing portion of the electrode, so that the electrode is constantly kept clean and depolarized. Preferred is a flat and solid state ion selective electrode for this electrode system. Additionally, the size of the stirrer is designed not only to lessen the amount of a sample solution which is present in the test chamber but to prevent the reading response from retarding.

摘要翻译： 一种自动去极化电极系统，用于分析溶液中的离子和气体，特别是在血液中。 将磁力搅拌器放置在电极系统的测试室中，并摩擦构成测试室壁的电极的感测表面。 在分析过程中，旋转的搅拌器防止血液在电极的感测部分上凝结，使得电极始终保持清洁并去极化。 优选的是用于该电极系统的扁平和固态离子选择性电极。 此外，搅拌器的尺寸不仅设计成减少试验室中存在的样品溶液的量，而且防止读取响应延迟。

公开(公告)号：US4550011A

公开(公告)日：1985-10-29

申请号：US510415

申请日：1983-07-01

申请人： Roy L. McCollum

发明人： Roy L. McCollum

IPC分类号： G01N27/403 ,  G01N33/18 ,  G01N27/38

CPC分类号： G01N33/1893

摘要： A cylindrical closed housing formed of clear material provides a test flow cell for monitoring the halogen and pH level in a flowing liquid stream. The cylindrical housing includes a circumferential, longitudinally extending side surface with front and back end surfaces secured to the circumferential cylindrical surface to form the closed, hollow housing test cell. The housing has a first inlet opening at one side for the liquid stream; an outlet opening for the liquid stream at the top of the housing and a second inlet opening for acid at the bottom of the housing. A pair of additional openings, one on each side of the outlet opening receives and positions electronic sensing probes diagonally within the test flow cell; the probes terminate between the top outlet and bottom second inlet openings and opposite the first inlet side opening.A controller includes circuitry which enables the halogen and pH levels desired in a reservoir of water to be preset. The sensing probes measure the actual halogen and pH levels in the reservoir water, and the actual and preset levels are continuously compared by a comparator circuit in the controller. When the measured halogen level is below the set halogen level, additional halogen is injected in the reservoir water. A timer provides a timed electric signal at a predetermined interval to actuate pump means to inject muriatic acid during the timed signal period into the reservoir water if the measured pH is higher than the preset pH level of the reservoir water.

摘要翻译： 由透明材料形成的圆柱形封闭壳体提供用于监测流动液体流中的卤素和pH水平的测试流动池。 圆柱形壳体包括周向纵向延伸的侧表面，其前后表面固定到周向圆柱形表面以形成封闭的中空壳体测试单元。 壳体在一侧具有用于液体流的第一入口; 在壳体顶部的液体流的出口和用于在壳体底部的酸的第二入口开口。 一对额外的开口，一个在出口开口的每一侧，在测试流通池内对角地接收和定位电子感测探头; 探针在顶部出口和底部第二入口之间终止并且与第一入口侧开口相对。 控制器包括能够预设在水库中所需的卤素和pH水平的电路。 传感探头测量储层水中的实际卤素和pH值，并通过控制器中的比较器电路连续比较实际和预设值。 当测量的卤素水平低于设定的卤素水平时，额外的卤素被注入储层水中。 定时器以预定的间隔提供定时电信号，以便在测量的pH高于储水器的预设pH水平的情况下致动泵装置，以在定时信号周期期间将蓄水酸注入储存器水中。

公开(公告)号：US4472261A

公开(公告)日：1984-09-18

申请号：US482556

申请日：1983-04-06

申请人： Masahiro Oita ,  Naohumi Tonoka

发明人： Masahiro Oita ,  Naohumi Tonoka

IPC分类号： G01N27/404 ,  G01N27/38 ,  G01N27/49 ,  G01N27/46

CPC分类号： G01N27/404 ,  G01N27/38

摘要： An electrode system for measuring oxygen gas in a solution comprises a pair of electrodes consisting of an indicator electrode and a reference electrode immersed in an electrolyte solution and a membrane pressed against the indicator electrode. On the other side of the membrane, is a solution to be analyzed. In determination of gas in solution especially in blood, good reproducibility of data, a stable reading and a long performance life are obtained by rubbing the surface of the indicator electrode and rotating a magnetic stirrer on the membrane. These effective measures prevent the electrode and the membrane from being contaminated. Accordingly, continuous analysis of arterial blood can be achieved.

摘要翻译： 用于测量溶液中的氧气的电极系统包括一对电极，该电极由浸渍在电解质溶液中的指示电极和参比电极组成，并且压在指示电极上。 在膜的另一侧，是待分析的溶液。 在确定溶液中特别是血液中的气体时，通过摩擦指示器电极的表面并旋转膜上的磁力搅拌器，可获得数据的良好重现性，稳定的读数和长的使用寿命。 这些有效的措施可防止电极和膜被污染。 因此，可以实现动脉血的连续分析。

公开(公告)号：US4415858A

公开(公告)日：1983-11-15

申请号：US273154

申请日：1981-06-12

申请人： Charles J. Hale

发明人： Charles J. Hale

IPC分类号： G01N27/28 ,  G01N27/38 ,  G01N27/56

CPC分类号： G01N27/28 ,  G01N27/38

摘要： An assembly for mounting a pH probe in a flowing solution, such as a sanitary sewer line, which prevents the sensitive glass portion of the probe from becoming coated with grease, oil, and other contaminants, whereby the probe gives reliable pH indication over an extended period of time. The pH probe assembly utilizes a special filter media and a timed back-rinse feature for flushing clear surface contaminants of the filter. The flushing liquid is of a known pH and is utilized to check performance of the probe.

摘要翻译： 用于将pH探针安装在诸如卫生污水管线的流动溶液中的组件，其防止探针的敏感玻璃部分涂覆润滑脂，油和其它污染物，由此探针在延伸的溶液中提供可靠的pH指示 一段的时间。 pH探针组件采用特殊的过滤介质和定时反冲洗功能，可以清洗过滤器的清洁表面污染物。 冲洗液是已知的pH值，用于检查探针的性能。