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Environment Protection System INC.

Environment Protection System INC. GAS DETECTION SENSOR. CATALYTIC SENSOR. Passivated Bead. Catalyzed. Catalytic Bead 觸媒珠. Wheatstone Bridge. No Temperature or Humidity Effect. Silicone Resistant. 0-100% L.E.L. Scale. Compensator. DC Supply. Detector. Output. Wheatstone Bridge.

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Environment Protection System INC.

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  1. Environment Protection System INC.

  2. GAS DETECTION SENSOR

  3. CATALYTIC SENSOR

  4. Passivated Bead Catalyzed Catalytic Bead 觸媒珠 Wheatstone Bridge No Temperature or Humidity Effect Silicone Resistant 0-100% L.E.L. Scale

  5. Compensator DC Supply Detector Output Wheatstone Bridge

  6. Electrochemical Current Generating Electrolytic Reaction Specificity to Gas of Interest PPM for Toxics or Percent Volume for Oxygen Sensing-electrode 2CO + 2H2O 2CO2 + 4H+ + 4e- Counter-electrode O2 + 4H+ + 4e 2H2O Cell reaction 2CO + O2 2CO2

  7. 隔膜 感應器信號 陰極 20 10 陽極 電解液 (mV) 21 50 100 氧氣濃度 (%O2) mV 信號端子 隔膜電池式 Membrane Type Galvanic Cell Method 陰極 (貴金屬) O2+2H2O + 4e- 40H- 陽極 (鉛) 2Pb 2Pb2 + 4e-

  8. Sensing: CO + H2O CO2 + 2H+ + 2e- Counter: ½O2 + 2H+ + 2e- H2O And the overall reaction is: CO + ½O2 CO2

  9. SPECTROGRAM

  10. SampleCell Detector Source Infrared Methane or Propane Carbon Dioxide Accurate Large Measurement Range Low Maintenance Light Absorption sensors are becoming more affordable and more reliable. They are used for optically absorbing gases that fall in the infrared (IR), visible, or ultraviolet (UV) spectral ranges. Some gases reliably detected by optical sensors are: carbon dioxide, methanol, hydrogen cyanide, chlorine, refrigerant gases and naphthalene.

  11. SEMICONDUCTOR SENSOR

  12. SENSOR ARRAY

  13. High-Temperature Gas Sensor Array

  14. SENSOR ARRAY APPLICATION

  15. Methanol Concentration Sensor (化學式CH3OH) Integrated Sensing Systems, Inc. (ISSYS) in Ypsilanti, Michigan, announced the small methanol concentration sensors under development, targeting the active Direct Methanol Fuel Cell (DMFC) market. These small sensors can also be utilized in a variety of other industrial and analytical applications for the need of a low-cost, accurate, small, inline density or chemical concentration sensors

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