公开(公告)号：US4078981A

公开(公告)日：1978-03-14

申请号：US747447

申请日：1976-12-03

Applicant: Radhakrishna M. Neti ,  Ray L. Roggenkamp

Inventor： Radhakrishna M. Neti ,  Ray L. Roggenkamp

IPC: G01N27/30 ,  G01N27/407 ,  G01N27/416 ,  G01N27/54

CPC classification number: G01N27/404

Abstract: An improved electrode for use in oxygen determination is disclosed. Interference from carbon dioxide is eliminated by combining an improved electrolyte with means for permitting rapid electrolyte movement into and out of the space between the cathode and the membrane covering the cathode to maintain the pH of the electrolyte in the space substantially constant. The electrolyte consists of a KCl solution containing KOH of from 0.1 to 2%.

Abstract translation: 公开了一种用于氧气测定的改进电极。 通过将改进的电解质与允许快速电解质进入和离开阴极和覆盖阴极的膜之间的空间的装置来消除来自二氧化碳的干扰，以将电解质的pH保持在空间中基本上恒定。 电解质由含有0.1至2％的KOH的KCl溶液组成。

公开(公告)号：US6071481A

公开(公告)日：2000-06-06

申请号：US034060

申请日：1998-03-03

Applicant: Loren T. Mathews ,  Radhakrishna M. Neti ,  David R. Whineray

Inventor： Loren T. Mathews ,  Radhakrishna M. Neti ,  David R. Whineray

IPC: B01D53/86 ,  B01D50/00

CPC classification number: B01D53/8678

Abstract: A zero air generating system comprises a hydrocarbon and NO oxidizer and a molecular sieve unit which are interconnected by suitable lines for continuous processing of the air stream. Flow control means is provided to maintain the flow rate of the air being treated to 5 liters/minute or less. The system may also include a separate NO to NO.sub.2 converter. The system purifies shop air by reducing the concentration of contaminants such as NO.sub.2, CO, CO.sub.2, H.sub.2 O and other remaining unoxidized hydrocarbons to levels acceptable under the IM-240 specification for instrument air. In a preferred embodiment of the invention, two parallel connected molecular sieves units are utilized in the system. Thus the air being treated can alternately flow through one molecular sieve while the other unit is in the process of being regenerated.

Abstract translation: 零空气产生系统包括烃和NO氧化剂和分子筛单元，其通过合适的管线互连以连续处理气流。 提供流量控制装置以将被处理的空气的流量保持在5升/分钟以下。 该系统还可以包括单独的NO至NO 2转化器。 该系统通过将NO 2，CO，CO 2，H 2 O和其它剩余的未氧化烃等污染物的浓度降低到仪器空气的IM-240规格下的可接受水平来净化车间空气。 在本发明的优选实施方案中，在该系统中使用两个平行连接的分子筛单元。 因此，被处理的空气可以交替地流过一个分子筛，而另一个单元处于再生过程中。

公开(公告)号：US4990236A

公开(公告)日：1991-02-05

申请号：US485772

申请日：1990-02-21

Applicant: Fred C. Sittler ,  Radhakrishna M. Neti ,  Adrian C. Toy

Inventor： Fred C. Sittler ,  Radhakrishna M. Neti ,  Adrian C. Toy

IPC: G01N27/42

CPC classification number: G01N27/423

Abstract: A solid state, thin film moisture sensing element is disclosed. The sensing element is fabricated by thin film deposition of at least a pair of two layer electrodes on an insulating surface. The active surface of the element is then coated with a layer of hygroscopic material and placed in a diffusion limiting housing to complete the sensing element assembly.

Abstract translation: 公开了一种固态薄膜湿度感测元件。 感测元件通过至少一对两层电极在绝缘表面上的薄膜沉积来制造。 然后将元件的活性表面涂覆有一层吸湿材料，并放置在扩散限制壳体中以完成感测元件组件。

公开(公告)号：US4655900A

公开(公告)日：1987-04-07

申请号：US837802

申请日：1986-03-10

Applicant: Radhakrishna M. Neti ,  John N. Harman, III

Inventor： Radhakrishna M. Neti ,  John N. Harman, III

IPC: G01N27/49 ,  G01N27/46 ,  B05D3/02

CPC classification number: G01N27/3271

Abstract: An improved electrochemical cell is described which comprises at least one electrode having increased signal strength achieved by treating at least the working surface of the electrode with a coating of a polytetrafluoroethylene and a catalyst metal selected from the group consisting of platinum and the oxides thereof in an aqueous oligosaccharide solution. Following coating, the electrode is heated to a temperature below the sintering temperature of the polymer to thermally convert the oligosaccharide in the presence of the catalyst metal and drive off the conversion products. An electrode thus treated exhibits a substantially inproved signal strength as compared to an electrode of the same construction which has not been treated in accordance with the invention.

Abstract translation: 描述了一种改进的电化学电池，其包括至少一个具有增加的信号强度的电极，其通过用聚四氟乙烯和选自铂及其氧化物的催化剂金属的涂层在至少处理电极的工作表面 水寡糖溶液。 在涂覆之后，将电极加热至低于聚合物烧结温度的温度，以在催化剂金属存在下热转化寡糖并驱除转化产物。 与未按照本发明进行处理的相同结构的电极相比，这样处理的电极表现出基本上未改善的信号强度。

公开(公告)号：US4372915A

公开(公告)日：1983-02-08

申请号：US277458

申请日：1981-06-26

Applicant: Radhakrishna M. Neti ,  Raymond E. Rocks

Inventor： Radhakrishna M. Neti ,  Raymond E. Rocks

IPC: G01N21/64 ,  G01N33/00 ,  B01J7/00

CPC classification number: G01N21/643 ,  G01N33/0006 ,  Y10T436/186

Abstract: A fluorescent sulfur dioxide analyzer that includes a generator for producing a standard gas of known sulfur dioxide content. A source of ultraviolet radiation illuminates the interior of a reaction chamber in which an oxygen containing gas is passed over a deposit of sulfur. During passage, a part of the oxygen reacts with the sulfur to produce sulfur dioxide. Because the quantity of sulfur dioxide is predictable and reproducible, the resulting sulfur dioxide containing gas is suitable for use as a standard or span gas in the analyzer with which it is used, thereby eliminating the need for the storage tanks or permeation tubes.

Abstract translation: 一种荧光二氧化硫分析仪，其包括用于产生已知二氧化硫含量的标准气体的发生器。 紫外线辐射源照射了含氧气体通过硫沉积物的反应室内部。 在通过期间，一部分氧与硫反应产生二氧化硫。 因为二氧化硫的数量是可预测的和可再现的，因此所得到的含二氧化硫气体适用于使用它的分析仪中的标准或跨度气体，从而不再需要储罐或渗透管。

公开(公告)号：US4268370A

公开(公告)日：1981-05-19

申请号：US111404

申请日：1980-01-11

Applicant: Radhakrishna M. Neti

Inventor： Radhakrishna M. Neti

IPC: G01N27/28 ,  G01N27/49 ,  G01N27/46

CPC classification number: G01N27/404

Abstract: An electrochemical sensor for determining the O.sub.2 content of a fluid characterized in that the electrolyte employed therein is selected from a group consisting of amino alcohols having 2 to 12 carbon atoms, morpholine, and mixtures thereof. Optimally, the electrolyte can further comprise a supporting electrolyte selected from a group consisting of inorganic halides, organic supporting electrolytes, and mixtures thereof.

Abstract translation: 一种用于确定流体的O 2含量的电化学传感器，其特征在于其中使用的电解质选自具有2至12个碳原子的氨基醇，吗啉及其混合物。 最佳地，电解质可以进一步包括选自无机卤化物，有机支持电解质及其混合物的支持电解质。

公开(公告)号：US4002547A

公开(公告)日：1977-01-11

申请号：US490544

申请日：1974-07-22

Applicant: Radhakrishna M. Neti ,  Colin C. Bing

Inventor： Radhakrishna M. Neti ,  Colin C. Bing

IPC: G01N27/30 ,  G01N27/40 ,  G01N27/46

CPC classification number: G01N27/301

Abstract: An electrochemical reference electrode for use in ion potential measurements of solutions. The liquid junction structure of the electrode comprises a hydrophobic polymer having a suitable salt distributed therethrough and held in place to prevent leaching by a filamentary structure of the polymer. The liquid junction structure is a diffusion membrane material and permits ionic communication between the salt bridge solution of the electrode and the sample solution essentially by means of diffusion, rather than by liquid flow. The entire electrode body may be made of the polymeric material. The electrode is particularly suited for process applications.

Abstract translation: 用于溶液离子电位测量的电化学参比电极。 电极的液体接合结构包括疏水性聚合物，其具有分布在其中的合适的盐并保持在适当位置，以防止聚合物的丝状结构浸出。 液体接合结构是扩散膜材料，并且允许电极的盐桥溶液和样品溶液基本上通过扩散而不是液体流动之间的离子连通。 整个电极体可以由聚合材料制成。 电极特别适用于工艺应用。