What's inside a gas detection Station?

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Discussion Overview

The discussion centers around the types of gas sensors used in gas detection stations, particularly focusing on their precision and capabilities. Participants explore various sensor technologies, including electrochemical, metal-oxide, and infrared sensors, while seeking to understand the professional-grade sensors utilized in these stations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses familiarity with electrochemical and metal-oxide sensors but seeks information on the types of sensors used in professional gas detection stations.
  • Another participant requests clarification on which specific sensors are not understood, suggesting a link to a Wikipedia page on gas detectors.
  • A participant clarifies that they are interested in the specific sensors within gas detection stations, mentioning infrared sensors and questioning which sensors can reliably certify gas concentrations.
  • Infrared absorption is mentioned as a type of sensor relevant to gas detection.
  • A later reply indicates that gas detection technology involves lasers and mirrors, referencing a specific product page for further information.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specific types of sensors used in gas detection stations, and multiple viewpoints regarding sensor capabilities and technologies are presented.

Contextual Notes

Participants express uncertainty regarding the limitations of different sensor types, such as cross-sensitivity issues with electrochemical sensors, and the discussion does not resolve these technical challenges.

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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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