DIODE-LASER BASED PHOTO-ACOUSTIC SPECTROSCOPY IN ATMOSPHERIC NO2 DETECTION
| Main Authors: | Mitrayana, -, Pierera, T., Moeskops, B.W.M., Persijn, S., Naus, H., Harren, F.J.M., Wasono, M.A.J., Muslim, -, Rochmah, W. |
|---|---|
| Format: | Article info application/pdf Journal |
| Bahasa: | eng |
| Terbitan: |
BIMIPA
, 2008
|
| Subjects: | |
| Online Access: |
https://jurnal.ugm.ac.id/bimipa/article/view/13751 https://jurnal.ugm.ac.id/bimipa/article/view/13751/9839 |
Daftar Isi:
- We have developed a simple, low cost, and compact NO2 detection system. It’s based on photoacoustic spectroscopy (PAS) method uses a diode laser as a source of radiation. The PAS system has a detection limit of 10 ppbv for NO2. With this set-up we were able to detect the NO2 concentration from urban air near our campus. We have also investigated the NO2 dissociation effect on the PAS system via NO measurements using a direct absorption spectroscopy method on quantum cascade laser (QCL) system. Keywords: photoacoustic spectroscopy