1 / 9

Calibration of Gas Sensors

Calibration of Gas Sensors. Block Diagram of Setup. 500 sccm. 200 sccm Flow rate. Pure Nitrogen. CO2 1028 ppm. 200 sccm. MFC. Sensor details. TGS 4161 Figaro- co 2 Range: 350 ppm -10000ppm Atmospheric concentration: 350-400 ppm Calibrated range: 350-900 ppm.

donal
Download Presentation

Calibration of Gas Sensors

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Calibration of Gas Sensors

  2. Block Diagram of Setup 500 sccm 200 sccm Flow rate Pure Nitrogen CO2 1028 ppm 200 sccm

  3. MFC

  4. Sensor details • TGS 4161 Figaro- co2 • Range: 350 ppm -10000ppm • Atmospheric concentration: 350-400 ppm • Calibrated range: 350-900 ppm

  5. CO2 calibration Result

  6. Comments • PPM is inversely proportional to o/p voltage • Emf’s at 350 ppm is consistent (Column B) • Transition from synthetic air to 350 ppm is consistent.(Column E) • But, transition from base value of 350 ppm totest gas concentration is not the values that we are looking for.(Column G) the value’s should have slightly higher as per data sheet.

  7. As per data sheet Note: The maximum change in emf that we noticed is around 12 mv. These should have been little bit higher as per data sheet.

  8. Δ ppm v/s Δ EMF X-axis Δ PPM Y-axis Δ EMF

  9. THANK YOU

More Related