公开(公告)号：US07257986B2

公开(公告)日：2007-08-21

申请号：US11058654

申请日：2005-02-15

申请人： Stephan Haupt ,  Michael Sick ,  Rigobert Chrzan ,  Andreas Nauber ,  Dieter Krüger ,  Christoph Bernstein ,  Wilfried Diekmann

发明人： Stephan Haupt ,  Michael Sick ,  Rigobert Chrzan ,  Andreas Nauber ,  Dieter Krüger ,  Christoph Bernstein ,  Wilfried Diekmann

IPC分类号： G01N27/00

CPC分类号： G01N33/0016

摘要： A gas sensor (1) with a detector element (2), which is specific to a gas to be measured and sends a measured signal that depends on the measured gas concentration, has increased measuring sensitivity for measurements in the concentration range from less than 1 ppb to a few ppb. The detector element (2) is exposed in a gas admission adapter (4) to a gas to be measured via a diaphragm (3) arranged in front of the detector element (2), wherein the gas admission adapter (4) has at least a first opening (20) for the entry of the gas to be measured as well as at least a second opening (30), which is connected with a pressure modulator, which generates periodic gas pressure vibrations in the gas admission adapter (4) and is designed, for example, as a pump (5).

摘要翻译： 具有检测器元件（2）的气体传感器（1），其特异于被测量的气体并发送取决于测量的气体浓度的测量信号，具有增加的测量灵敏度，其浓度范围从小于1 ppb到几ppb 检测器元件（2）通过布置在检测器元件（2）前面的隔膜（3）暴露在气体接纳适配器（4）中至要测量的气体，其中气体接纳适配器（4）至少具有 用于输入待测气体的第一开口（20）以及与压力调节器连接的至少第二开口（30），其在气体进入适配器（4）中产生周期性的气体压力振动，以及 例如被设计为泵（5）。

公开(公告)号：US5932079A

公开(公告)日：1999-08-03

申请号：US987206

申请日：1997-12-09

申请人： Stephan Haupt ,  Christoph Bernstein ,  Gero Sagasser ,  Johannes Lagois

发明人： Stephan Haupt ,  Christoph Bernstein ,  Gero Sagasser ,  Johannes Lagois

IPC分类号： G01N27/49 ,  G01N27/26

CPC分类号： G01N27/4045

摘要： An electrochemical measuring cell for the simultaneous detection of different gas components in a gas sample, with a plurality of measuring electrodes (4, 5, 6) behind a diffusion barrier (7), with a common reference electrode (8) and counterelectrode (9) in an acid electrolyte, and with a potentiostatic evaluating circuit. Improvements in terms of service life for a sensor for the simultaneous detection of oxygen and carbon monoxide is provided with a reference electrode formed of a sintered mixture of metal and its metal oxide, preferably from the platinum group, the iridium group or gold and the potential of the CO-measuring electrode (5) relative to the reference electrode (8) is set at about 0 to 300 mV, and that of the O.sub.2 -measuring electrode (4) is set at a value between -300 and -800 mV.

摘要翻译： 一种用于同时检测气体样品中不同气体组分的电化学测量单元，其具有在扩散阻挡层（7）后面的多个测量电极（4,5,6），具有公共参考电极（8）和反电极（9 ）在酸性电解质中，并具有恒电位评估电路。 用于同时检测氧气和一氧化碳的传感器的使用寿命方面的改进提供了由金属和其金属氧化物的烧结混合物形成的参比电极，优选由铂族，铱基或金形成的电极和电位 相对于参考电极（8）的CO测量电极（5）设定为约0〜300mV，将O 2测量电极（4）设定为-300〜-800mV。

公开(公告)号：US20050229675A1

公开(公告)日：2005-10-20

申请号：US11058654

申请日：2005-02-15

申请人： Stephan Haupt ,  Michael Sick ,  Rigobert Chrzan ,  Andreas Nauber ,  Dieter Kruger ,  Christoph Bernstein ,  Wilfried Diekmann

发明人： Stephan Haupt ,  Michael Sick ,  Rigobert Chrzan ,  Andreas Nauber ,  Dieter Kruger ,  Christoph Bernstein ,  Wilfried Diekmann

IPC分类号： G01N1/28 ,  G01N27/00 ,  G01N27/16 ,  G01N27/26 ,  G01N27/413 ,  G01N27/416 ,  G01N33/00 ,  G01N37/00

CPC分类号： G01N33/0016

摘要： A gas sensor (1) with a detector element (2), which is specific of the gas to be measured and sends a measured signal that depends on the measured gas concentration, has increased measuring sensitivity for measurements in the concentration range from less than 1 ppb to a few ppb. The detector element (2) is exposed in a gas admission adapter (4) to a gas to be measured via a diaphragm (3) arranged in front of it, wherein the gas admission adapter (4) has at least a first opening (20) for the entry of the gas to be measured as well as at least a second opening (30), which is connected with a pressure modulator, which generates periodic gas pressure vibrations in the gas admission adapter (4) and is designed, for example, as a pump (5).

摘要翻译： 具有检测器元件（2）的气体传感器（1），其被测量的气体的特异性并且发送取决于测量的气体浓度的测量信号具有增加的测量灵敏度，其浓度范围从小于1 ppb到几ppb 检测器元件（2）通过布置在其前面的隔膜（3）暴露在气体接纳适配器（4）中的待测气体中，其中气体接纳适配器（4）至少具有第一开口（20） ），以及至少第二开口（30），其与压力调节器连接，其在气体进入适配器（4）中产生周期性气体压力振动，并被设计为例如 ，作为泵（5）。

公开(公告)号：US5316648A

公开(公告)日：1994-05-31

申请号：US943678

申请日：1992-09-11

申请人： Uwe Kuhn ,  Herbert Kiesele ,  Stephan Haupt

发明人： Uwe Kuhn ,  Herbert Kiesele ,  Stephan Haupt

IPC分类号： G01N27/49 ,  G01N27/26

CPC分类号： G01N27/4045

摘要： An electrochemical measuring cell has a three-electrode system including electrode, counter electrode and reference electrode in an electrolyte. The measuring cell has an additive promoting the electrochemical reaction and is selective and highly sensitive for the detection of hydrogen halides and also provides a stable measuring signal. A measuring cell of this kind has an additive of tetrachloroauric acid in the electrolyte for detecting hydrochloric acid with all electrodes being made of gold. The counter electrode is protected by a cation exchange membrane to provide a further improvement.

摘要翻译： 电化学测量单元具有在电解质中包括电极，对电极和参比电极的三电极系统。 测量池具有促进电化学反应的添加剂，并且对于检测卤化氢具有选择性和高度敏感性，并且还提供稳定的测量信号。 这种测量电池在用于检测所有电极由金制成的盐酸的电解质中具有四氯金酸的添加剂。 对电极由阳离子交换膜保护以提供进一步的改进。

公开(公告)号：US5228974A

公开(公告)日：1993-07-20

申请号：US804722

申请日：1991-12-11

申请人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

发明人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

IPC分类号： G01N27/49 ,  G01N33/00

CPC分类号： G01N27/4045 ,  G01N33/0054

摘要： The invention is directed to an electrochemical measuring cell for measuring ammonia or hydrazine and includes at least a measuring electrode and a counter electrode in an electrolyte. The measuring cell provides a signal increase having a shorter response time and an improved signal stability. For this purpose, the electrolyte is an aqueous solution of a hygroscopic salt of an alkali metal or earth alkali metal such as calcium nitrate or lithium nitrate or a mixture of both salts.

摘要翻译： 本发明涉及用于测量氨或肼的电化学测量池，并且在电解质中至少包括测量电极和对电极。 测量单元提供具有较短响应时间和改进的信号稳定性的信号增加。 为此，电解质是碱金属或碱土金属的吸湿盐如硝酸钙或硝酸锂或这两种盐的混合物的水溶液。

公开(公告)号：US5076904A

公开(公告)日：1991-12-31

申请号：US507755

申请日：1990-04-12

申请人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

发明人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

IPC分类号： G01N27/404 ,  C25B11/08 ,  G01N27/416 ,  G01N27/49

CPC分类号： G01N27/4045

摘要： The invention is directed to an electrochemical measuring cell for determining ammonia or hydrazine in a gaseous or liquid measuring sample. The measuring cell has at least one measuring electrode and at least one counter electrode which are disposed in an electrolyte chamber filled with a soluble electrolyte. The electrolyte chamber is closed off in the direction facing toward the measuring sample by a permeable membrane. The measuring cell provides a selective ammonia measurement having the following advantages: a short response time, a linear response and a low tendency to drift. The electrodes of the measuring cell are so configured that the oxidation of the ammonia as a measurement reaction has no influence on the sensitivity of the measuring cell. For this purpose, at least the measuring electrode is provided with a coating containing cobalt oxide which is in direct contact with the electrolyte.

摘要翻译： 本发明涉及用于测定气态或液体测量样品中的氨或肼的电化学测量池。 测量单元具有至少一个测量电极和至少一个对电极，它们设置在填充有可溶性电解质的电解质室中。 电解质室通过渗透膜在朝向测量样品的方向上封闭。 测量池提供选择性氨测量，其具有以下优点：响应时间短，线性响应和低漂移倾向。 测量单元的电极被配置为使得作为测量反应的氨的氧化对测量单元的灵敏度没有影响。 为此，至少测量电极设置有与电解质直接接触的含有氧化钴的涂层。

公开(公告)号：US5344546A

公开(公告)日：1994-09-06

申请号：US19764

申请日：1993-02-19

申请人： Herbert Kiesele ,  Stephan Haupt ,  Uwe Kuhn

发明人： Herbert Kiesele ,  Stephan Haupt ,  Uwe Kuhn

IPC分类号： G01N27/49 ,  G01N33/00 ,  G01N27/404

CPC分类号： G01N27/4045 ,  G01N33/0054

摘要： The invention is directed to an electrochemical cell for measuring ammonia, amines, hydrazine and hydrazine derivatives and includes a measuring electrode in an electrolyte. The measuring electrode is provided with a coating made of a transition metal oxide and is improved in that its measuring sensitivity during long-term loading is increased. The cross sensitivity of the measuring cell is reduced especially with respect to NO.sub.2 and SO.sub.2. For this purpose, the oxide constituents of the coating are made of a metal conducting oxide of one element or an oxide mixture of several elements of the platinum metal group. Oxides of ruthenium and iridium have proven especially useful. The invention is also directed to an electrochemical measuring cell for measuring ammonia or hydrazine and includes at least a measuring electrode and a counter electrode in an electrolyte. The measuring cell provides a signal increase having a shorter response time and an improved signal stability. For this purpose, the electrolyte is an aqueous solution of a hygroscopic salt of an alkali metal or alkaline earth metal such as calcium nitrate or lithium nitrate or a mixture of both salts.

摘要翻译： 本发明涉及用于测量氨，胺，肼和肼衍生物的电化学电池，并且在电解质中包括测量电极。 测量电极设置有由过渡金属氧化物制成的涂层，并且改进了其在长期负载期间的测量灵敏度增加。 测量池的交叉灵敏度特别是相对于NO2和SO2而降低。 为此，涂层的氧化物组分由一种元素的金属导电氧化物或铂金属基团的若干元素的氧化物混合物制成。 钌和铱的氧化物被证明是特别有用的。 本发明还涉及一种用于测量氨或肼的电化学测量池，并且在电解质中至少包括测量电极和对电极。 测量单元提供具有较短响应时间和改进的信号稳定性的信号增加。 为此，电解质是碱金属或碱土金属的吸湿盐如硝酸钙或硝酸锂或这两种盐的混合物的水溶液。

公开(公告)号：US5198092A

公开(公告)日：1993-03-30

申请号：US696089

申请日：1991-05-06

申请人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

发明人： Herbert Kiesele ,  Uwe Kuhn ,  Stephan Haupt

IPC分类号： G01N27/49

CPC分类号： G01N27/4045

摘要： The invention is directed to an electrochemical measuring cell for determining ammonia or hydrazine in a gaseous or liquid measuring sample. The measuring cell has at least one measuring electrode and at least one counter electrode which are disposed in an electrolyte chamber filled with a soluble electrolyte containing a cobalt salt dissolved therein. The electrolyte chamber is closed off in the direction facing toward the measuring sample by a permeable membrane. The measuring cell provides a selective ammonia measurement having the following advantages: a short response time, a linear response and a low tendency to drift. The electrodes of the measuring cell are so configured that the oxidation of the ammonia as a measurement reaction has no influence on the sensitivity of the measuring cell. For this purpose, at least the measuring electrode is provided with a coating containing cobalt oxide which is in direct contact with the electrolyte.

摘要翻译： 本发明涉及用于测定气态或液体测量样品中的氨或肼的电化学测量池。 测量单元具有至少一个测量电极和至少一个对电极，其设置在填充有溶解有钴盐的可溶性电解质的电解质室中。 电解质室通过渗透膜在朝向测量样品的方向上封闭。 测量池提供选择性氨测量，其具有以下优点：响应时间短，线性响应和低漂移倾向。 测量单元的电极被配置为使得作为测量反应的氨的氧化对测量单元的灵敏度没有影响。 为此，至少测量电极设置有与电解质直接接触的含有氧化钴的涂层。

公开(公告)号：US5041204A

公开(公告)日：1991-08-20

申请号：US543436

申请日：1990-06-26

申请人： Uwe Kuhn ,  Herbert Kiesele ,  Stephan Haupt

发明人： Uwe Kuhn ,  Herbert Kiesele ,  Stephan Haupt

IPC分类号： G01N27/49

CPC分类号： G01N27/4045

摘要： The invention is directed to an electrochemical measuring cell for detecting hydrogen cyanide or sulfur dioxide by means of at least one measuring electrode and a counter electrode disposed in an electrolyte. The electrolyte is accommodated in a measuring chamber closed off with respect to the ambient by a membrane permeable to the substance to be detected. This measuring cell is improved in that the long-term stability of the measuring signal is increased and a corrosion of the electrodes is prevented. For this purpose, the electrolyte in the electrolyte chamber contains an additive of copper salts for catalyzing the oxidation of the substance to be detected.

摘要翻译： 本发明涉及一种用于通过至少一个测量电极和设置在电解质中的对电极来检测氰化氢或二氧化硫的电化学测量池。 电解质容纳在相对于环境的封闭的测量室中，所述测量室可被待检测物质透过的膜。 该测量单元的改进在于测量信号的长期稳定性增加，并且防止了电极的腐蚀。 为此，电解质室中的电解质含有用于催化待检测物质的氧化的铜盐添加剂。