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Analytic Equipment

The Experts below are selected from a list of 36 Experts worldwide ranked by ideXlab platform

Shinwon Kang – 1st expert on this subject based on the ideXlab platform

  • Development of non-invasive optical transcutaneous pCO/sub 2/ gas sensor and Analytic Equipment
    The 13th International Conference on Solid-State Sensors Actuators and Microsystems 2005. Digest of Technical Papers. TRANSDUCERS '05., 2005
    Co-Authors: Dae-hyuk Kwon, Shinwon Kang

    Abstract:

    This paper presents an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement method adapts Beer-Lambert’s law and the embodied system uses the NDTR (non-dispersive infrared) method. Since CO/sub 2/ gas reacts to a 4.3 /spl mu/m wavelength, this wavelength is selected using an optical filter, and used energy decrease by molecule oscillations. The CO/sub 2/ concentration is then measured by a MFC (mass flow controller) using basic steps, instead of collecting pCO/sub 2/ gas by inflicting heat on the outer skin. The measuring system consists of an IR lamp, optical filter, optical reaction chamber, pyroelectric sensor, and signal process part. To make the sensor system portable, the length of the optical reaction chamber is minimized to 1 mm using a Si wafer based on MEMS technology. When CO/sub 2/ gas is injected into the optical reaction chamber, a result of 4.3 mV was confirmed when using a photoreaction path of 1 mm with a CO/sub 2/ gas reaction. The response time of the system was within 2 seconds, which is fairly fast.

  • development of non invasive optical transcutaneous pco sub 2 gas sensor and Analytic Equipment
    International Conference on Solid-State Sensors Actuators and Microsystems, 2005
    Co-Authors: Dae-hyuk Kwon, Shinwon Kang

    Abstract:

    This paper presents an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement method adapts Beer-Lambert’s law and the embodied system uses the NDTR (non-dispersive infrared) method. Since CO/sub 2/ gas reacts to a 4.3 /spl mu/m wavelength, this wavelength is selected using an optical filter, and used energy decrease by molecule oscillations. The CO/sub 2/ concentration is then measured by a MFC (mass flow controller) using basic steps, instead of collecting pCO/sub 2/ gas by inflicting heat on the outer skin. The measuring system consists of an IR lamp, optical filter, optical reaction chamber, pyroelectric sensor, and signal process part. To make the sensor system portable, the length of the optical reaction chamber is minimized to 1 mm using a Si wafer based on MEMS technology. When CO/sub 2/ gas is injected into the optical reaction chamber, a result of 4.3 mV was confirmed when using a photoreaction path of 1 mm with a CO/sub 2/ gas reaction. The response time of the system was within 2 seconds, which is fairly fast.

  • basic research of non invasive optical transcutaneous pco 2 gas sensor Analytic Equipment
    Journal of Sensor Science and Technology, 2004
    Co-Authors: Shinwon Kang

    Abstract:

    In this study, we carried out a basic study for the development of optical transcutaneous gas sensor and analyzer using non-invasive method. The basic principle of measurement is adapted Beer lambert`s law and embodied the system using NDIR method. This measuring system was composed of a IR lamp, a optical filter, a optical reaction chamber, pyroelectric sensor and a signal process. We measured concentration in basis step instead of gas that can collect by inflicting heat in outer skin. We minimize the size of optical reaction chamber which takes up the largest volume, to make the portable sensor. We made optical reaction chamber in Si wafer using MEMS technology and the optical reaction chamber was shortened to 2 mm and we carried out an experiment. When we injected the to the inside of the optical reaction chamber, we could confirm change of 4.6 mV. The system response time was within 2 second that is fairly fast.

Dae-hyuk Kwon – 2nd expert on this subject based on the ideXlab platform

  • Development of non-invasive optical transcutaneous pCO/sub 2/ gas sensor and Analytic Equipment
    The 13th International Conference on Solid-State Sensors Actuators and Microsystems 2005. Digest of Technical Papers. TRANSDUCERS '05., 2005
    Co-Authors: Dae-hyuk Kwon, Shinwon Kang

    Abstract:

    This paper presents an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement method adapts Beer-Lambert’s law and the embodied system uses the NDTR (non-dispersive infrared) method. Since CO/sub 2/ gas reacts to a 4.3 /spl mu/m wavelength, this wavelength is selected using an optical filter, and used energy decrease by molecule oscillations. The CO/sub 2/ concentration is then measured by a MFC (mass flow controller) using basic steps, instead of collecting pCO/sub 2/ gas by inflicting heat on the outer skin. The measuring system consists of an IR lamp, optical filter, optical reaction chamber, pyroelectric sensor, and signal process part. To make the sensor system portable, the length of the optical reaction chamber is minimized to 1 mm using a Si wafer based on MEMS technology. When CO/sub 2/ gas is injected into the optical reaction chamber, a result of 4.3 mV was confirmed when using a photoreaction path of 1 mm with a CO/sub 2/ gas reaction. The response time of the system was within 2 seconds, which is fairly fast.

  • development of non invasive optical transcutaneous pco sub 2 gas sensor and Analytic Equipment
    International Conference on Solid-State Sensors Actuators and Microsystems, 2005
    Co-Authors: Dae-hyuk Kwon, Shinwon Kang

    Abstract:

    This paper presents an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement method adapts Beer-Lambert’s law and the embodied system uses the NDTR (non-dispersive infrared) method. Since CO/sub 2/ gas reacts to a 4.3 /spl mu/m wavelength, this wavelength is selected using an optical filter, and used energy decrease by molecule oscillations. The CO/sub 2/ concentration is then measured by a MFC (mass flow controller) using basic steps, instead of collecting pCO/sub 2/ gas by inflicting heat on the outer skin. The measuring system consists of an IR lamp, optical filter, optical reaction chamber, pyroelectric sensor, and signal process part. To make the sensor system portable, the length of the optical reaction chamber is minimized to 1 mm using a Si wafer based on MEMS technology. When CO/sub 2/ gas is injected into the optical reaction chamber, a result of 4.3 mV was confirmed when using a photoreaction path of 1 mm with a CO/sub 2/ gas reaction. The response time of the system was within 2 seconds, which is fairly fast.

  • Development of non-invasive optical transcutaneous pCO/sub 2/ gas sensor and Analytic Equipment
    SENSORS 2004 IEEE, 2004
    Co-Authors: Dae-hyuk Kwon, Shinwon Kang

    Abstract:

    We have studied the development of an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement adapted Beer-Lambert’s law and the embodied system using the NDIR (non dispersive infrared) method. CO/sub 2/ gas reacts with a 4.3 /spl mu/m wavelength, so we selected this wavelength by an optical filter, and used energy decrease by molecule oscillations. We measured the CO/sub 2/ concentration using the MFC (mass flow controller) in basic steps instead of the pCO/sub 2/ gas that can collect by inflicting heat on the outer skin. This measuring system consisted of an IR lamp, an optical filter, an optical reaction chamber, a pyroelectric sensor and a signal processing system. We minimized the volume of the optical reaction chamber in order to make the sensor portable. We made an optical reaction chamber with a Si wafer using MEMS technology and it was shortened to 1 mm. We carried out an experiment in photoreaction length variation from 1 mm to 10 mm. We confirmed the linear graph of CO/sub 2/ concentration variation from 1,000 ppm (parts per million) to 100,000 ppm at 1 mm photoreaction length. The response time of this system was within 2 seconds, which is fairly fast.

Fernando Estrada – 3rd expert on this subject based on the ideXlab platform

  • The visual model of the Aufbau
    , 2011
    Co-Authors: Fernando Estrada

    Abstract:

    This paper proposes an interpretation theoretical model of the Aufbau of Rudolf Carnap, this interpretation contributes to upgrade the project original carnapian, in the sense of conferring to the constitutional program of construction logical, less committed Analytic Equipment with an ontology or clearly defined epistemology. The setting in phenomenal logical reconstruction practice is elaborated for the visual field as a model whose potential user is a fellow ideal percipient, and, a subject epistemic that operates in the same way that a scheduled computer when he has been given basic phenomenal information and some algorithms logical.

  • The Carnapian Aufbau model: epistemology of the sense-data
    SSRN Electronic Journal, 2011
    Co-Authors: Fernando Estrada

    Abstract:

    This paper proposes an interpretation theoretical model of the Aufbau of Rudolf Carnap, this interpretation contributes to upgrade the project original carnapian, in the sense of conferring to the constitutional program of construction logical, less committed Analytic Equipment with an ontology or clearly defined epistemology. The setting in phenomenal logical reconstruction practice is elaborated for the visual field as a model whose potential user is a fellow ideal percipient, and, a subject epistemic that operates in the same way that a scheduled computer when he has been given basic phenomenal information and some algorithms logical.