- Tytuł:
- Explosives vapors–concentrating and optoelectronic detection
- Autorzy:
-
Wojtas, J.
Rutecka, B.
Popiel, S.
Nawała, J.
Wesołowski, M.
Mikołajczyk, J.
Cudziło, S.
Bielecki, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/221395.pdf
- Data publikacji:
- 2014
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
explosives concentrator
explosive detection
optoelectronic sensors
CEAS sensors - Opis:
- Detection of explosives vapors is an extremely difficult task. The sensitivity of currently constructed detectors is often insufficient. The paper presents a description of an explosive vapors concentrator that improves the detection limit of some explosives detectors. These detector s have been developed at the Institute of Optoelectronics. The concentrator is especially dedicated to operate with nitrogen oxide detectors. Preliminary measurements show that using the concentrator, the recorded amount of nitrogen dioxide released from a 0.5 ng sample of TNT increases by a factor of approx. 20. In the concentrator an induction heater is applied. Thanks to this and because of the miniaturization of the container with an adsorbing material (approx. 1 cm3), an extremely high rate of tempera ture growth is achieved (up to 500°C within approx. 25 s). The concentration process is controlled by a microcontroller. Compact construction and battery power supply provide a possibility of using the concentrator as a portable device.
- Źródło:
-
Metrology and Measurement Systems; 2014, 21, 2; 177-190
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł