What's inside a gas detection Station?

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SUMMARY

This discussion focuses on the types of sensors used in professional gas detection stations, particularly highlighting the limitations of electrochemical and metal-oxide sensors when deployed outdoors. Participants emphasize the precision of gas detection stations, which utilize advanced technologies such as infrared absorption and laser-based systems. The conversation reveals that while electrochemical sensors face cross-sensitivity issues, infrared sensors provide a more reliable means of measuring gas concentrations accurately. Resources such as Wikipedia and Sick's product portfolio are recommended for further exploration of gas detection technologies.

PREREQUISITES
  • Understanding of electrochemical and metal-oxide gas sensors
  • Familiarity with infrared gas detection technology
  • Knowledge of gas concentration measurement principles
  • Basic concepts of laser technology in gas analysis
NEXT STEPS
  • Research the principles of infrared gas detection technology
  • Explore the applications of laser-based gas analyzers
  • Learn about the limitations and advantages of different gas sensor types
  • Investigate the certification processes for gas concentration measurements
USEFUL FOR

Environmental engineers, safety professionals, and anyone involved in gas detection technology will benefit from this discussion, particularly those seeking to enhance their understanding of advanced gas sensor systems.

ervays
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Good Morning guys!

I'm trying to understand more about gas sensors. I know a lot about electrochemical and metaloxide sensors. I've faced all the limits that those sensors presents when you are using them outdoors.

Now I'm wondering how the gas sensors stations can measure different gases with such precission. I suppose that they use different gas sensors and I'd like to know more about them.
Does anyone knows about this professional gas sensors? Some web where I can start looking?

Cheers flokes/ladys^^!
 
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Baluncore said:
Can you please be more specific about what type of sensor you do not understand.

https://en.wikipedia.org/wiki/Gas_detector#Types

It's not about what sensor do I understand or not. What I'd like to know is which kind of sensors are inside this stations.

I've worked with metal-oxide and electrochemical. I know there are infrared, but what are the top ones? What kind of sensors are the ones that can certify that there is X concentration of the gas for sure?

Electrochemical sensors can not, cause they have the cross sensitivity issue which doesn't have a mathematical solution.
 
As Mr Baluncore has indicated, it's all lasers and mirrors.
https://www.sick.com/de/en/product-portfolio/gas-analyzers/in-situ-gas-analyzers/c/g284253

upload_2017-5-23_19-23-18.png
 

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