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1. 发明申请

US20120178151A1 UNITARY PLASTIC CONDUCTIVITY SENSOR 有权
标题翻译：单位塑料电导率传感器
公开(公告)号：US20120178151A1
公开(公告)日：2012-07-12
申请号：US13325265
申请日：2011-12-14
申请人： Chang-Dong Feng , Barry W. Benton
发明人： Chang-Dong Feng , Barry W. Benton
IPC分类号： G01R27/28 , B29C45/14 , C12M1/34
CPC分类号： G01N27/07 , G01N27/30
摘要： A contacting-type conductivity sensor includes an electrically-insulative plastic body and a plurality of electrodes. The plurality of conductive electrodes is disposed in the plastic body. Each electrode is constructed of plastic and fused with the electrically-insulative plastic body. A method of manufacturing the conductivity sensor is provided along with a single-use bioreactor employing the sensor.
摘要翻译：接触型电导率传感器包括电绝缘塑料体和多个电极。多个导电电极设置在塑料体中。每个电极由塑料构成，并与电绝缘塑料体熔合。与使用该传感器的一次性生物反应器一起提供制造电导率传感器的方法。

2. 发明授权

US08063644B2 Impedance measurement of a pH electrode 有权
标题翻译： pH电极的阻抗测量
公开(公告)号：US08063644B2
公开(公告)日：2011-11-22
申请号：US11894038
申请日：2007-08-17
申请人： Behzad Rezvani , Jeffrey Lomibao , Chang-Dong Feng
发明人： Behzad Rezvani , Jeffrey Lomibao , Chang-Dong Feng
IPC分类号： G01N27/416
CPC分类号： G01N27/4165
摘要： A method of measuring impedance of a pH electrode is provided. A test current is applied to the pH electrode for a time duration that is less than 50 percent of a time constant that is associated with electrical characteristics of the pH electrode. A voltage response of the pH electrode is measured when the test current is applied to the pH electrode. An impedance of the pH electrode is calculated as a function of the voltage response.
摘要翻译：提供了测量pH电极的阻抗的方法。将测试电流施加到pH电极上持续时间小于与pH电极的电特性相关联的时间常数的50％。当测试电流施加到pH电极时，测量pH电极的电压响应。根据电压响应计算pH电极的阻抗。

3. 发明授权

US07640784B2 System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning 有权
标题翻译：在清洁过程中使用压缩流体校准溶解氧分析仪的系统
公开(公告)号：US07640784B2
公开(公告)日：2010-01-05
申请号：US11522828
申请日：2006-09-18
申请人： Chang-Dong Feng
发明人： Chang-Dong Feng
IPC分类号： G12B13/00
CPC分类号： G01N33/1806
摘要： A dissolved oxygen measurement system, and a method for calibrating a dissolved oxygen analyzer are provided. The method includes directing a pressurized cleaning fluid, having a known oxygen content, upon a sensing surface of a dissolved oxygen sensor disposed in a fluid. Then, the analyzer waits until the dissolved oxygen sensor response to the pressurized cleaning fluid is relatively stable, and stores a calibration value relative to the dissolved oxygen sensor response to the pressurized cleaning fluid. A dissolved oxygen measurement system is also provided. The system includes a dissolved oxygen sensor disposed in a fluid and a first source of a first compressed cleaning fluid that has a first dissolved oxygen content. A dissolved oxygen analyzer is coupled to the dissolved oxygen sensor and to the first valve and is configured to obtain a first calibration value related to the first dissolved oxygen content.
摘要翻译：提供溶解氧测量系统和用于校准溶解氧分析仪的方法。该方法包括将具有已知氧含量的加压清洁流体引导到设置在流体中的溶解氧传感器的感测表面上。然后，分析仪等待直到对加压清洗流体的溶解氧传感器响应相对稳定，并且存储相对于加压清洗流体的溶解氧传感器响应的校准值。还提供了一种溶解氧测量系统。该系统包括设置在流体中的溶解氧传感器和具有第一溶解氧含量的第一压缩清洁流体的第一源。溶解氧分析仪耦合到溶解氧传感器和第一阀，并被配置成获得与第一溶解氧含量相关的第一校准值。

4. 发明申请

US20080297179A1 MULTILAYER MANUFACTURING FOR CONDUCTIVITY SENSOR 审中-公开
标题翻译：电导率传感器的多层制造
公开(公告)号：US20080297179A1
公开(公告)日：2008-12-04
申请号：US12128081
申请日：2008-05-28
申请人： Chang-Dong Feng , Fong Shyr Yang
发明人： Chang-Dong Feng , Fong Shyr Yang
IPC分类号： G01R27/02
CPC分类号： G01N27/07
摘要： A contacting-type conductivity sensor is provided. A first insulating layer has a proximal surface to contact a liquid sample, and an opposite, distal surface. A plurality of electrodes is disposed on the proximal surface of the first insulating layer. Each of a plurality of conductive vias is electrically coupled to a respective one of the plurality of electrodes, where each via defines a conductive path from the proximal surface to the distal surface of the first insulating layer. A plurality of traces is disposed adjacent the distal surface of the first insulating layer, and each of the plurality of traces is electrically coupled to a respective one of the plurality of conductive vias. A plurality of conductors is provided where each conductor is electrically coupled to a respective one of the plurality of traces. A cover layer is coupled to the first insulating layer.
摘要翻译：提供接触型电导率传感器。第一绝缘层具有接触液体样品的近端表面和相对的远端表面。多个电极设置在第一绝缘层的近端表面上。多个导电通孔中的每一个电耦合到多个电极中的相应一个，其中每个通孔限定从第一绝缘层的近端表面到远端表面的导电路径。多个迹线被布置成与第一绝缘层的远端表面相邻，并且多个迹线中的每一个电连接到多个导电通孔中的相应一个。提供多个导体，其中每个导体电耦合到多个迹线中的相应一个迹线。覆盖层耦合到第一绝缘层。

5. 发明申请

US20080283399A1 POTENTIOMETRIC PROCESS ANALYTIC SENSOR WITH ISOLATED TEMPERATURE SENSOR 审中-公开
标题翻译：具有隔离温度传感器的电位分析过程分析传感器
公开(公告)号：US20080283399A1
公开(公告)日：2008-11-20
申请号：US12120619
申请日：2008-05-14
申请人： Chang-Dong Feng , Barry W. Benton
发明人： Chang-Dong Feng , Barry W. Benton
IPC分类号： G01N27/26
CPC分类号： G01N27/36 , G01N27/4035
摘要： A sensor for analyzing a liquid sample is provided. The sensor includes a sensor body defining a chamber therein. A sensing cell is disposed within the chamber and is adapted to contact the sample solution. The sensing cell has a sensing cell fill solution therein, and a sensing electrode disposed within the sensing cell fill solution. A reference fill solution is disposed within the sensor body. A reference junction is arranged to contact the reference fill solution and the sample solution. A temperature sensitive device is disposed within the body and is configured to provide a temperature sensitive device output. A reference electrode is disposed within the sensor body in contact with the reference fill solution. A solution ground electrode is disposed within the sensor body and spaced from the reference electrode.
摘要翻译：提供了用于分析液体样品的传感器。传感器包括在其中限定室的传感器主体。感测单元设置在室内并且适于接触样品溶液。感测单元在其中具有感测单元填充溶液，以及设置在感测单元填充溶液内的感测电极。参考填充溶液设置在传感器主体内。参考连接点被布置成接触参考填充溶液和样品溶液。温度敏感设备设置在主体内并且被配置为提供温度敏感的设备输出。参考电极设置在与参考填充溶液接触的传感器主体内。溶液接地电极设置在传感器主体内并与参考电极间隔开。

6. 发明申请

US20080067065A1 System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning 有权
标题翻译：在清洁过程中使用压缩流体校准溶解氧分析仪的系统
公开(公告)号：US20080067065A1
公开(公告)日：2008-03-20
申请号：US11522828
申请日：2006-09-18
申请人： Chang-Dong Feng
发明人： Chang-Dong Feng
IPC分类号： G01N27/26
CPC分类号： G01N33/1806
摘要： A dissolved oxygen measurement system, and a method for calibrating a dissolved oxygen analyzer are provided. The method includes directing a pressurized cleaning fluid, having a known oxygen content, upon a sensing surface of a dissolved oxygen sensor disposed in a fluid. Then, the analyzer waits until the dissolved oxygen sensor response to the pressurized cleaning fluid is relatively stable, and stores a calibration value relative to the dissolved oxygen sensor response to the pressurized cleaning fluid. A dissolved oxygen measurement system is also provided. The system includes a dissolved oxygen sensor disposed in a fluid and a first source of a first compressed cleaning fluid that has a first dissolved oxygen content. A first valve is operably coupled to the first source and configured to selectively direct the first compressed cleaning fluid against a sensing surface of the dissolved oxygen sensor. A dissolved oxygen analyzer is coupled to the dissolved oxygen sensor and to the first valve and is configured to obtain a first calibration value related to the first dissolved oxygen content while the first valve directs the first cleaning fluid against the sensing surface.
摘要翻译：提供溶解氧测量系统和用于校准溶解氧分析仪的方法。该方法包括将具有已知氧含量的加压清洁流体引导到设置在流体中的溶解氧传感器的感测表面上。然后，分析仪等待直到对加压清洗流体的溶解氧传感器响应相对稳定，并且存储相对于加压清洗流体的溶解氧传感器响应的校准值。还提供了一种溶解氧测量系统。该系统包括设置在流体中的溶解氧传感器和具有第一溶解氧含量的第一压缩清洁流体的第一源。第一阀可操作地联接到第一源并且被配置为选择性地将第一压缩清洁流体导向溶解氧传感器的感测表面。溶解氧分析仪耦合到溶解氧传感器和第一阀，并且被配置为获得与第一溶解氧含量相关的第一校准值，同时第一阀将第一清洁流体引导到感测表面。

7. 发明申请

US20060219564A1 Conductivity sensor and manufacturing method therefor 失效
标题翻译：电导传感器及其制造方法
公开(公告)号：US20060219564A1
公开(公告)日：2006-10-05
申请号：US11396403
申请日：2006-03-30
申请人： Chang-Dong Feng
发明人： Chang-Dong Feng
IPC分类号： C25D21/12
CPC分类号： C25D17/02 , C25D21/12 , G01N27/07 , G01R27/22
摘要： A contacting-type conductivity sensor includes a plurality of electrodes disposed on a distal surface of a substrate. The substrate includes a plurality of vias through which electrical interconnection to the electrodes is accomplished. The conductivity sensor can employ two or four electrodes and may have a temperature sensitive element disposed on the distal surface. The electrodes may be patterned or otherwise deposited using semiconductor processing techniques.
摘要翻译：接触型电导率传感器包括设置在基板的远侧表面上的多个电极。衬底包括多个通孔，通过该通孔与电极实现电互连。电导率传感器可以使用两个或四个电极，并且可以具有设置在远端表面上的温度敏感元件。可以使用半导体处理技术将电极图案化或以其他方式沉积。

8. 发明授权

US07087150B2 Chloramine amperometric sensor 失效
公开(公告)号：US07087150B2
公开(公告)日：2006-08-08
申请号：US10138359
申请日：2002-05-03
申请人： Chang-Dong Feng
发明人： Chang-Dong Feng
IPC分类号： G01N27/404
CPC分类号： G01N27/4045 , G01N2033/184
摘要： A chloramine amperometric sensor includes a sensor body with an electrolyte disposed inside the sensor body. A membrane is coupled to the sensor body and adapted to pass chloramine therethrough. A reference electrode is disposed in the electrolyte and coupled to a first conductor. A second conductor is coupled to a working electrode that is disposed proximate the membrane. The working electrode is constructed from a noble metal in non-compact form. The non-compact form can be a Gas Diffusion Electrode, which can include metal mesh, carbon paper, carbon cloth, metal/carbon powder loaded on a porous membrane or any combination thereof.

9. 发明申请

US20060163088A1 Amperometric sensor with counter electrode isolated from fill solution 审中-公开
标题翻译：电流传感器与反电极隔离填充液
公开(公告)号：US20060163088A1
公开(公告)日：2006-07-27
申请号：US11340834
申请日：2006-01-26
申请人： Joshua Xu , Chang-Dong Feng
发明人： Joshua Xu , Chang-Dong Feng
IPC分类号： G01F1/64 , G01N27/26
CPC分类号： G01N27/404
摘要： An amperometric sensor includes a sensor body having a distal end and an interior containing an electrolytic fill solution. A porous membrane is disposed proximate the distal end to allow diffusion of molecules or ions of interest. A working electrode is disposed within the sensor body proximate the membrane. A counter electrode is disposed to conduct current between the counter electrode and the working electrode. The counter electrode is physically isolated from the electrolytic fill solution. A method of measuring a concentration of the molecules or ions of interest is also provided.
摘要翻译：电流传感器包括具有远端的传感器本体和包含电解填充溶液的内部。多孔膜靠近远端设置以允许感兴趣的分子或离子的扩散。工作电极设置在靠近膜的传感器体内。设置对电极以在对电极和工作电极之间传导电流。对电极与电解填充液物理隔离。还提供了测量感兴趣的分子或离子的浓度的方法。

10. 发明授权

US06602401B1 Amperometric sensor for low level dissolved oxygen with self-depleting sensor design 有权
公开(公告)号：US06602401B1
公开(公告)日：2003-08-05
申请号：US09707740
申请日：2000-11-01
申请人： Chang-Dong Feng
发明人： Chang-Dong Feng
IPC分类号： G01N27404
CPC分类号： G01N27/404
摘要： A dissolved oxygen sensor having a cathode and anode immersed in an electrolyte is designed to provide a low background current in the sensor when a potential is applied to the cathode. The background current is maintained at a desired level by selecting the area and length of a channel or path of diffusion of residual oxygen in the electrolyte to the cathode. The area (A) of the diffusion channel in relation to its length (L) is selected to be at or below a selected ratio, A/L.

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