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    UN ANALIZADOR DE GASES
    1.
    发明专利
    UN ANALIZADOR DE GASES 未知

    公开(公告)号：ES2005076A6

    公开(公告)日：1989-03-01

    申请号：ES8602546

    申请日：1986-10-10

    Applicant: ANDROS ANALYZERS INC

    Inventor： PARNOFF GEORGE KENNET ,  PASSARO ROBERT EUGENE ,  ROGERS RAYMOND EARL ,  WILLIAMS KEVIN GRAHAM

    IPC: G01N21/31 ,  G01N21/35 ,  G01N21/37 ,  G01N21/61 ,  G01N21/03

    Abstract: UN ANALIZADOR DE GASES DOTADO DE UNA FUENTE (11), UNA RUEDA DE FILTROS (17), UNA CELDA DE MUESTRA (21), UN DETECTOR (15) Y UN CIRCUITO DE TRATAMIENTO DE SEÑALES (24) PARA PRODUCIR UNA SALIDA INDICATIVA DE LA CONCENTRACION DE UN GAS PREDETERMINADO COMPARANDO SEÑALES ELECTRICAS PRODUCIDAS POR EL DETECTOR CON UN FILTRO Y REGIONES DE NIVEL OSCURO DE DICHA RUEDA SITUADOS PERIODICAMENTE EN LA TRAYECTORIA DE LA ENERGIA INFRARROJA, DEJANDO PASAR DICHO FILTRO ENERGIA INFRARROJA LIMITADA A UNA BANDA COMPRENDIDA DENTRO DE LA BANDA DE ABSORCION DE DICHO GAS. LA RUEDA CITADA LLEVA UN SEGUNDO FILTRO QUE DEJA PASAR DOS BANDAS DE INFRARROJOS FUERA DE LAS REGIONES DE ABSORCION DE OTROS GASES PRESENTES EN LA CELDA MUESTRA, SIGUIENDO ESTE SEGUNDO FILTRO LA VARIACION DE ABSORCION DEBIDO A LA PRESENCIA DE VAPOR DE AGUA. EL INVENTO ES UTIL PARA CONTROLAR LOS GASES ADMINISTRADOS A PACIENTES ANESTESIADOS.

    AN IMPROVED SET POINT CONTROL CIRCUIT FOR AN INFRARED GAS ANALYZER
    4.
    发明专利
    AN IMPROVED SET POINT CONTROL CIRCUIT FOR AN INFRARED GAS ANALYZER 未知

    公开(公告)号：AU617178B2

    公开(公告)日：1991-11-21

    申请号：AU3557389

    申请日：1989-04-14

    Applicant: ANDROS ANALYZERS INC

    Inventor： ROGERS RAYMOND EARL

    IPC: G01N21/61 ,  G01J1/18 ,  G01N21/27 ,  G01N21/31 ,  G01N21/35 ,  G01N21/01

    Abstract: An arrangement for ensuring the stability of the set point for a gas analyzer is disclosed. The set point control circuit utilizes an amplifier which is alternately switched between a reference voltage and a sensor signal to provide a signal to a processor representing the reference signal and the sensor signal. The processor compares the two signals and adjusts the heater associated with the sensor to provide a stable set point for the gas analyzer. The arrangement eliminates the need for precision resistors within the set point control circuit and therefore significantly reduces the cost of the circuitry.

    5.
    发明专利
    未知

    公开(公告)号：FI905019A0

    公开(公告)日：1990-10-12

    申请号：FI905019

    申请日：1990-10-12

    Applicant: ANDROS ANALYZERS INC

    Inventor： ROGERS RAYMOND EARL

    IPC: G01N21/61 ,  G01J1/18 ,  G01N21/27 ,  G01N21/31 ,  G01N21/35 ,  G01N

    Abstract: An arrangement for ensuring the stability of the set point for a gas analyzer is disclosed. The set point control circuit utilizes an amplifier which is alternately switched between a reference voltage and a sensor signal to provide a signal to a processor representing the reference signal and the sensor signal. The processor compares the two signals and adjusts the heater associated with the sensor to provide a stable set point for the gas analyzer. The arrangement eliminates the need for precision resistors within the set point control circuit and therefore significantly reduces the cost of the circuitry.

    RED GAS ANALYZER
    6.
    发明专利
    RED GAS ANALYZER 未知

    公开(公告)号：AU3557389A

    公开(公告)日：1989-11-03

    申请号：AU3557389

    申请日：1989-04-14

    Applicant: ANDROS ANALYZERS INC

    Inventor： ROGERS RAYMOND EARL

    IPC: G01N21/61 ,  G01J1/18 ,  G01N21/27 ,  G01N21/31 ,  G01N21/35

    Abstract: An arrangement for ensuring the stability of the set point for a gas analyzer is disclosed. The set point control circuit utilizes an amplifier which is alternately switched between a reference voltage and a sensor signal to provide a signal to a processor representing the reference signal and the sensor signal. The processor compares the two signals and adjusts the heater associated with the sensor to provide a stable set point for the gas analyzer. The arrangement eliminates the need for precision resistors within the set point control circuit and therefore significantly reduces the cost of the circuitry.

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