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    • 1. 再颁专利
    • Low cost room temperature electrochemical carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes
    • 低成本室温电化学一氧化碳和有毒气体传感器,具有基于质子导电膜的湿度补偿
    • USRE45186E1
    • 2014-10-14
    • US10621637
    • 2003-07-17
    • Yousheng ShenFranco ConsadoriD. George Field
    • Yousheng ShenFranco ConsadoriD. George Field
    • G01N27/407
    • G01N33/004G01N27/4074
    • A low cost room temperature electrochemical gas sensor with humidity compensation for sensing CO, alcohol vapors and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a counter electrode, optionally a counter electrode and a reference electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors, or can be made of a thin electrically conducting film such as platinum. A reservoir of water maintain the solid protonic conductive membrane at constant 100 percent relative humidity to compensate for ambient humidity changes. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor. Analyte gas pumps for the inventive sensor include dual pumping electrodes situated on opposite sides of the membrane, and include a means for applying a DC power across the membrane to the sensing and counter electrodes. Another embodiment of the inventive sensor has first and second solid protonic conductive membranes, one of which has a sensing electrode and a counter electrode separated by the first membrane, and the other of which has dual pump electrodes situated on opposite sides of the second membrane.
    • 具有湿度补偿功能的低成本室温电化学气体传感器用于感测CO,酒精蒸汽和其他有毒分析物气体,具有低体积离子电阻的固体质子导电膜。 由膜分离的感测电极和对电极,可选的对电极和参比电极可以由混合的质子电子导体制成,或者可以由薄的导电膜例如铂制成。 水库保持固体质子导电膜处于恒定的100%相对湿度,以补偿环境湿度变化。 本发明的传感器的实施例还包括用于将分析物气体远离传感器的对电极侧传输的电化学分析物气体泵。 用于本发明传感器的分析气体泵包括位于膜的相对侧上的双重泵浦电极,并且包括用于将DC电力跨越膜施加到感测和对电极的装置。 本发明的传感器的另一实施例具有第一和第二固体质子导电膜,其中之一具有感测电极和由第一膜隔开的对电极,另一个具有位于第二膜的相对侧上的双泵电极。
    • 2. 再颁专利
    • Gas sensor based on protonic conductive membranes
    • 基于质子导电膜的气体传感器
    • USRE45100E1
    • 2014-09-02
    • US10621999
    • 2003-07-17
    • Yousheng ShenFranco ConsadoriD. George Field
    • Yousheng ShenFranco ConsadoriD. George Field
    • G01N27/407
    • G01N33/004G01N27/4074
    • A low cost room temperature electrochemical gas sensor for sensing CO and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a count counter electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor. Analyte gas pumps for the inventive sensor include dual pumping electrodes situated on opposite sides of the membrane, and include a means for applying a DC power across the membrane to the sensing and counter electrodes. Another embodiment of the inventive sensor has first and second solid protonic conductive membranes, one of which has a sensing electrode and a counter electrode separated by the first membrane, and the other of which has dual pumping electrodes situated on opposite sides of the second membrane.
    • 用于感测CO和其他有毒分析气体的低成本室温电化学气体传感器具有低体积离子电阻的固体质子导电膜。 由膜隔开的感测电极和计数对电极可以由混合的质子电子导体制成。 本发明的传感器的实施例还包括用于将分析物气体远离传感器的对电极侧传输的电化学分析物气体泵。 用于本发明传感器的分析气体泵包括位于膜的相对侧上的双重泵浦电极,并且包括用于将DC电力跨越膜施加到感测和对电极的装置。 本发明的传感器的另一实施例具有第一和第二固体质子导电膜,其中之一具有感测电极和由第一膜隔开的对电极,另一个具有位于第二膜的相对侧上的双泵电极。
    • 3. 发明授权
    • Gas sensor with a diagnostic device
    • 具有诊断装置的气体传感器
    • US06200443B1
    • 2001-03-13
    • US09162594
    • 1998-09-29
    • Yousheng ShenFranco Consadori
    • Yousheng ShenFranco Consadori
    • G01N27407
    • G01N27/4175G01N27/4045G01N33/004
    • A highly accurate, long life, low cost gas sensor is disclosed, particularly useful for measuring carbon monoxide and other toxic gases in an environment. The gas sensor has a first, sensing electrode and a second, counting electrode. Positioned between the first and second electrodes is an ion conducting, solid electrolyte membrane. In response to the presence of a toxic gas introduced to the first electrode, an electric signal is produced between the first electrode and the second electrode. The electric signal changes in response to changes in the concentration of the toxic gas. Detection circuitry measures the electric signal to determine the concentration of the toxic gas. An electrically conductive, hydrophobic top membrane electrically connects the first electrode to the detection circuitry while preventing liquid water from contacting the first electrode. An electrically conductive, hydrophobic bottom membrane electrically connects the second electrode to the detection circuitry. The top and bottom membranes, though hydrophobic, are preferably also microporous so as to be gas permeable, including permeable to water vapor. Preferably the top and bottom membranes are ion insulating as well. Optionally the sensor is provided with a water reservoir to maintain constant relative humidity at the ion conducting electrolyte membrane. The sensor may also have a heating element. Internal and external self-diagnostic features to ensure that the sensor is functioning normally are disclosed, as well as self-calibration features, so as to ensure sensor accuracy.
    • 公开了一种高精度,长寿命,低成本的气体传感器,特别适用于测量环境中的一氧化碳和其他有毒气体。 气体传感器具有第一感测电极和第二计数电极。 位于第一和第二电极之间的是离子传导固体电解质膜。 响应于引入到第一电极的有毒气体的存在,在第一电极和第二电极之间产生电信号。 电信号响应于有毒气体浓度的变化而变化。 检测电路测量电信号以确定有毒气体的浓度。 导电的疏水顶膜将第一电极与检测电路电连接,同时防止液态水与第一电极接触。 导电的疏水底膜将第二电极电连接到检测电路。 顶部和底部膜虽然是疏水的,但优选也是微孔的,以便是透气的,包括可透过水蒸气。 优选地,顶部和底部膜也是离子绝缘的。 可选地,传感器设置有储水器,以在离子传导电解质膜处保持恒定的相对湿度。 传感器也可以具有加热元件。 公开了内部和外部的自我诊断功能,以确保传感器正常工作,以及自校准功能,以确保传感器的精度。
    • 4. 发明授权
    • Gas sensor with dual electrolytes
    • 双电解质气体传感器
    • US6080294A
    • 2000-06-27
    • US116121
    • 1998-07-15
    • Yousheng ShenFranco Consadori
    • Yousheng ShenFranco Consadori
    • G01N27/49G01N27/404
    • G01N27/404
    • A highly accurate, long life, low cost gas sensor is disclosed, particularly useful for measuring oxygen in an environment. The gas sensor has a first, sensing electrode and a second, counting electrode. Dual electrolytes are electrically serially connected between the first and second electrodes. One of the electrolytes is an ion conducting solid electrolyte, the second is a liquid electrolyte. In response to an electric current an electrical characteristic is produced, and the electrical characteristic changes in response to changes in the concentration of a gas such as oxygen introduced at the first, sensing electrode. The solid electrolyte can be a perfluorinated polymer which advantageously controls the rate of the electrochemical reaction to give the sensor a long life without need for continuous recalibration. A dense liquid impermeable membrane may be positioned over the first electrode so that only gas reaches the first electrode and all gas that reaches the first electrode passes through the membrane. Advantageously, the solid electrolyte isolates the liquid electrolyte from the first, sensing electrode. The liquid electrolyte may comprise an acidic solution, a basic solution or a salt solution.
    • 公开了一种高精度,长寿命,低成本的气体传感器,其特别用于测量环境中的氧气。 气体传感器具有第一感测电极和第二计数电极。 双电解质电连接在第一和第二电极之间。 电解质中的一种是离子导电固体电解质,第二种是液体电解质。 响应于电流,产生电特性,并且电特性响应于在第一感测电极处引入的诸如氧的气体的浓度的变化而变化。 固体电解质可以是全氟化聚合物,其有利地控制电化学反应的速率以使传感器寿命长,而不需要连续重新校准。 致密液体不可渗透膜可以位于第一电极上方,使得仅气体到达第一电极,并且到达第一电极的所有气体通过膜。 有利地,固体电解质将液体电解质与第一感测电极隔离。 液体电解质可以包含酸性溶液,碱性溶液或盐溶液。
    • 5. 发明授权
    • Gas sensor with electrically conductive, hydrophobic membranes
    • 气体传感器带导电疏水膜
    • US06896781B1
    • 2005-05-24
    • US09590947
    • 2000-06-09
    • Yousheng ShenFranco Consadori
    • Yousheng ShenFranco Consadori
    • G01N27/406G01N27/26G01N27/40G01N27/416G01N27/49G01N33/00G01N27/404G01N27/407
    • G01N27/4175G01N27/4045G01N33/004
    • A highly accurate, long life, low cost gas sensor is disclosed, particularly useful for measuring carbon monoxide and other toxic gases in an environment. The gas sensor has a first, sensing electrode and a second, counting electrode. Positioned between the first and second electrodes is an ion conducting, solid electrolyte membrane. In response to the presence of a toxic gas introduced to the first electrode, an electric signal is produced between the first electrode and the second electrode. The electric signal changes in response to changes in the concentration of the toxic gas. Detection circuitry measures the electric signal to determine the concentration of the toxic gas. An electrically conductive, hydrophobic top membrane electrically connects the first electrode to the detection circuitry while preventing liquid water from contacting the first electrode. An electrically conductive, hydrophobic bottom membrane electrically connects the second electrode to the detection circuitry. The top and bottom membranes, though hydrophobic, are preferably also microporous so as to be gas permeable, including permeable to water vapor. Preferably the top and bottom membranes are ion insulating as well. Optionally the sensor is provided with a water reservoir to maintain constant relative humidity at the ion conducting electrolyte membrane. The sensor may also have a heating element. Internal and external self-diagnostic features to ensure that the sensor is functioning normally are disclosed, as well as self-calibration features, so as to ensure sensor accuracy.
    • 公开了一种高精度,长寿命,低成本的气体传感器,特别适用于测量环境中的一氧化碳和其他有毒气体。 气体传感器具有第一感测电极和第二计数电极。 位于第一和第二电极之间的是离子传导固体电解质膜。 响应于引入到第一电极的有毒气体的存在,在第一电极和第二电极之间产生电信号。 电信号响应于有毒气体浓度的变化而变化。 检测电路测量电信号以确定有毒气体的浓度。 导电的疏水顶膜将第一电极与检测电路电连接,同时防止液态水与第一电极接触。 导电的疏水底膜将第二电极电连接到检测电路。 顶部和底部膜虽然是疏水的,但优选也是微孔的,以便是透气的,包括可透过水蒸气。 优选地,顶部和底部膜也是离子绝缘的。 可选地,传感器设置有储水器,以在离子传导电解质膜处保持恒定的相对湿度。 传感器也可以具有加热元件。 公开了内部和外部的自我诊断功能,以确保传感器正常工作,以及自校准功能,以确保传感器的精度。
    • 6. 发明授权
    • Low cost room temperature electrochemical carbon monoxide and toxic gas
sensor with humidity compensation based on protonic conductive membranes
    • 低成本室温电化学一氧化碳和有毒气体传感器,具有基于质子导电膜的湿度补偿
    • US5650054A
    • 1997-07-22
    • US522946
    • 1995-09-01
    • Yousheng ShenFranco ConsadoriD. George Field
    • Yousheng ShenFranco ConsadoriD. George Field
    • G01N27/407G01N27/49G01N33/00
    • G01N27/4045G01N27/4074G01N33/004
    • A low cost room temperature electrochemical gas sensor with humidity compensation for sensing CO, alcohol vapors and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a counter electrode, optionally a counter electrode and a reference electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors, or can be made of a thin electrically conducting film such as platinum. A reservoir of water maintain the solid protonic conductive membrane at constant 100 percent relative humidity to compensate for ambient humidity changes. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor. Analyte gas pumps for the inventive sensor include dual pumping electrodes situated on opposite sides of the membrane, and include a means for applying a DC power across the membrane to the sensing and counter electrodes. Another embodiment of the inventive sensor has first and second solid protonic conductive membranes, one of which has a sensing electrode and a counter electrode separated by the first membrane, and the other of which has dual pump electrodes situated on opposite sides of the second membrane.
    • 具有湿度补偿功能的低成本室温电化学气体传感器用于感测CO,酒精蒸汽和其他有毒分析物气体,具有低体积离子电阻的固体质子导电膜。 由膜分离的感测电极和对电极,可选的对电极和参比电极可以由混合的质子电子导体制成,或者可以由薄的导电膜例如铂制成。 水库保持固体质子导电膜处于恒定的100%相对湿度,以补偿环境湿度变化。 本发明的传感器的实施例还包括用于将分析物气体远离传感器的对电极侧传输的电化学分析物气体泵。 用于本发明传感器的分析气体泵包括位于膜的相对侧上的双重泵浦电极,并且包括用于将DC电力跨越膜施加到感测和对电极的装置。 本发明传感器的另一实施例具有第一和第二固体质子导电膜,其中之一具有感测电极和由第一膜隔开的对电极,另一个具有位于第二膜相对侧上的双泵电极。
    • 7. 发明授权
    • Gas sensor based on protonic conductive membranes
    • 基于质子导电膜的气体传感器
    • US5573648A
    • 1996-11-12
    • US381718
    • 1995-01-31
    • Yousheng ShenFranco ConsadoriD. George Field
    • Yousheng ShenFranco ConsadoriD. George Field
    • G01N27/407G01N27/49G01N33/00
    • G01N33/004G01N27/4074
    • A low cost room temperature electrochemical gas sensor for sensing CO and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a count counter electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor. Analyte gas pumps for the inventive sensor include dual pumping electrodes situated on opposite sides of the membrane, and include a means for applying a DC power across the membrane to the sensing and counter electrodes. Another embodiment of the inventive sensor has first and second solid protonic conductive membranes, one of which has a sensing electrode and a counter electrode separated by the first membrane, and the other of which has dual pumping electrodes situated on opposite sides of the second membrane.
    • 用于感测CO和其他有毒分析气体的低成本室温电化学气体传感器具有低体积离子电阻的固体质子导电膜。 由膜隔开的感测电极和计数对电极可以由混合的质子电子导体制成。 本发明的传感器的实施例还包括用于将分析物气体远离传感器的对电极侧传输的电化学分析物气体泵。 用于本发明传感器的分析气体泵包括位于膜的相对侧上的双重泵浦电极,并且包括用于将DC电力跨越膜施加到感测和对电极的装置。 本发明的传感器的另一实施例具有第一和第二固体质子导电膜,其中之一具有感测电极和由第一膜隔开的对电极,另一个具有位于第二膜的相对侧上的双泵电极。
    • 9. 发明授权
    • Gas releasing electrochemical cell for fluid dispensing applications
    • 用于流体分配应用的气体释放电化学电池
    • US5567287A
    • 1996-10-22
    • US495211
    • 1995-06-27
    • Ashok V. JoshiJohn H. GordonYousheng Shen
    • Ashok V. JoshiJohn H. GordonYousheng Shen
    • A61M5/142A61M5/148B01J19/24B67D7/02H01M2/10H01M6/16H01M6/18C25B9/00
    • B01J19/2475A61M5/1486B67D7/0255H01M2/1022H01M6/16H01M6/18A61M2005/14204B01J2219/00135B01J2219/00164
    • A self-contained device which continuously dispenses a packaged fluid is disclosed. The device is particularly suited for applications where several months may lapse before performance is manually initiated, after which a consistent steady flow is required for an extended period until the packaged fluid is exhausted. The device is particularly suited for applications where ease of fabrication is important. The device utilizes an electrochemicalIy-generated gas, such as oxygen or nitrogen, to pressurize the packaged fluid to dispense it. Oxygen can be electrochemically released from a solid anode material of the general form AxOy as A ions migrate across a suitable ion-conducting electrolyte. Alternatively, nitrogen can be the pressurizing gas wherein it is electrochemically released from a solid, anode material of the general form A'.sub..alpha. N.sub..beta. where A' is a cation, as A' ions migrate across a suitable ion-conducting electrolyte. At the cathode, several possibilities may occur, either the migrated cations are reduced to their elemental state, or a solid material, R.sub.2, where R is a halogen, is reduced to R.sup.-, or solid material, R', where R' is a group VIB element other than oxygen is reduced to R'.sup.-2, or solid material CR.sub.x, is reduced to C+XR.sup.-. The released gas, oxygen or nitrogen, pressurizes a chamber resulting in fluid contained in a flexible bladder within the chamber to be forced through an outlet. Depending on the selection of anode and cathode materials, the device will be self driven or else will require a battery to provide a driving force.
    • 公开了一种连续分配包装流体的独立装置。 该设备特别适用于手动启动性能之前几个月可能失效的应用,之后需要一段稳定的流量,直到包装的流体耗尽。 该器件特别适用于易于制造重要的应用。 该装置利用电化学产生的气体,例如氧气或氮气,对包装的流体进行加压以分配它。 当A离子迁移穿过合适的离子导电电解质时,氧可以从一般形式AxOy的固体阳极材料电化学释放。 或者,氮可以是加压气体,其中当A'离子迁移穿过合适的离子导电电解质时,其通过电化学释放从其中A'为阳离子的一般形式A'αNβ的固体阳极材料释放。 在阴极,可能会发生几种可能的情况,即迁移的阳离子被还原为其元素状态,或固体物质R 2(其中R是卤素)被还原为R-或固体物质R',其中R'是 氧以外的VIB族元素还原为R'-2,或固体物质CRx还原为C + XR-。 释放的气体,氧气或氮气对腔室加压,导致容纳在腔室内的柔性气囊中的流体被迫通过出口。 根据阳极和阴极材料的选择,器件将自动驱动,否则将需要电池提供驱动力。