Recent content by El_Burnie
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Detection of ground level ozone with light
Thanks, you don't know how big relief this is for me. For a moment I thought the whole project was lost... So if I switch the 2 lights lets say every quarter seconds, than I will get a wave signal at the output of the sensor. Does that mean that in a simplified model, the wave's peak is at a...- El_Burnie
- Post #9
- Forum: Materials and Chemical Engineering
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Detection of ground level ozone with light
with the second desing (2 different spectra UV leds) stability would not be a problem, as the leds light stay constant after reaching operating temperature. However with the low signal difference, I'll probably have to look into signal amplifyers and other circuitry to cancel electrical noise- El_Burnie
- Post #6
- Forum: Materials and Chemical Engineering
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Detection of ground level ozone with light
Putting the light sources at the intake part would probably heat the measuring tube up, which would distort the measurement. I was expecting a reading anywhere between 10 and 50ppb, however I've just come across a HUGE miscalculation... The equation I used was the following...- El_Burnie
- Post #5
- Forum: Materials and Chemical Engineering
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Detection of ground level ozone with light
Hi there, I'm working on a project where I'm trying create a sensor to measure the relatively lower concentrations of O3 at ground level. The main idea is to use the unique spectral characteristics of O3, shine a UVC light (at 254nm, where the absorption cross section is the highest) through...- El_Burnie
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- Sensor
- Replies: 12
- Forum: Materials and Chemical Engineering