mobilecal
Dec2-11, 01:40 PM
Hi everyone,
Yes Im a newbie here so forgive me if I dont ask the question correctly. I am trying to understand how to determine the minimal and maximum path length based on gas absorption.
I know this is based on Beer Lamberts Law but I am not sure which formulas to use and the order to use them. I appologize but I am not degreed in physics, but I have been a hobbist in spectroscopy and gas analysis for about 2 years.
In my thoughts I figured tat a minimal the following parameters must be considered.
1. Path Length
2. Gas (O2-760nms, 1% by volume)(range is .5% to 20%)
3. Beam Diameter
4. Pressure
5.Temperature
6. Tansmission
So if I did not ask correctly, I know the gas Im trying to measure, but not sure how to calculate what path length would be acceptable based on the sensitivity and range.
I am willing to do the work, just looking for some guidance here. Thank you in advance.
Yes Im a newbie here so forgive me if I dont ask the question correctly. I am trying to understand how to determine the minimal and maximum path length based on gas absorption.
I know this is based on Beer Lamberts Law but I am not sure which formulas to use and the order to use them. I appologize but I am not degreed in physics, but I have been a hobbist in spectroscopy and gas analysis for about 2 years.
In my thoughts I figured tat a minimal the following parameters must be considered.
1. Path Length
2. Gas (O2-760nms, 1% by volume)(range is .5% to 20%)
3. Beam Diameter
4. Pressure
5.Temperature
6. Tansmission
So if I did not ask correctly, I know the gas Im trying to measure, but not sure how to calculate what path length would be acceptable based on the sensitivity and range.
I am willing to do the work, just looking for some guidance here. Thank you in advance.