公开(公告)号：US3787308A

公开(公告)日：1974-01-22

申请号：US3787308D

申请日：1972-02-16

Applicant: ESB INC

Inventor： MALASPINA F ,  AKER W ,  WERTH J

IPC: G01N27/49 ,  G01N27/46

CPC classification number: G01N27/404

Abstract: A comparator element for gaseous oxygen comprises a first and a second oxygen-inert metal electrochemical cell. The first cell is fed with an oxygen containing gas of known oxygen content and the second cell is fed with a gas of unknown oxygen content. The design of the electrochemical cells is such that their electrical resistance when current is passed therethrough is inversely proportional to the oxygen content of the feed gas over a useful range. By comparing the resistances of the two cells, an accurate determination of the oxygen content of the unknown gas may be made with self compensation for ambient temperature. The range of the instrument may be increased by restricting the flow of gas to the oxygen electrodes. This may be accomplished by flowing the gas through a diffusion membrane and an orifice. Oxygen evolved from the metal electrode of the standard cell may be used to feed the oxygen electrode of the same cell thus providing a self sustaining standard atmosphere. The comparator may be compensated for pressure by providing pressure equalizing means between the gas feed to the first cell and the gas feed to the second.

Abstract translation: 用于气态氧的比较元件包括第一和第二氧惰性金属电化学电池。 向第一个电池中加入已知氧含量的含氧气体，第二个电池供给未知氧含量的气体。 电化学电池的设计使得当电流通过时它们的电阻与进料气体在有用范围内的氧含量成反比。 通过比较两个电池的电阻，可以对环境温度进行自补偿，对未知气体的氧含量进行精确测定。 可以通过限制气体向氧电极的流动来增加仪器的范围。 这可以通过使气体流过扩散膜和孔而实现。 可以使用从标准电池的金属电极放出的氧气来供给相同电池的氧电极，从而提供自我维持的标准气氛。 比较器可以通过在第一电池的气体供给和第二电池的气体供给之间提供压力均衡装置来补偿压力。

公开(公告)号：US3746580A

公开(公告)日：1973-07-17

申请号：US3746580D

申请日：1971-08-19

Applicant: ESB INC

Inventor： AKER W ,  MC CORMICK R

IPC: H01M12/06 ,  H01M27/00

CPC classification number: H01M12/06

Abstract: A GAS-DEPOLARIZABLE GALVANIC CELL HAVING AN INSERT MOLDED CATHODE SUBASSEMBLY IS DISCLOSED. THE CATHODE SUBASSEMBLY HAS PORTIONS THEREOF FORMED OF ELECTRICALLY NONCONDUCTIVE MATERIAL AND A PORTION THEREOF COMPRISED OF A GAS-DEPOLARIZABLE ELECTRODE.