Some causes of differences in the NH3 concentration measured with the semiconductor sensors by one manufacturer

P. Zabloudilová, J. Pecen and M. Češpiva
Additional contact information
P. Zabloudilová: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
J. Pecen: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
M. Češpiva: Research Institute of Agricultural Engineering, Prague, Czech Republic

Research in Agricultural Engineering, 2016, vol. 62, issue 4, 190-197

Abstract: The paper deals with continuous monitoring of NH3 desorption from material used as bedding in animal breeding establishments, using five semiconductor sensors SP-53 (FIS Inc.). In lab experiments, two groups of sensors from two categories, to which the manufacturer divided the sensors based on the value of their resistance RS, were used. Also the influence of air humidity over the values of NH3 concentrations measured by individual sensors was monitored. The study ascertained statistically relevant differences between NH3 concentration values measured by both groups of sensors, in the range from 8.5% to 23.1%. The biggest differences were confirmed for relative air humidity around 85%. It was verified that setting a convenient value of the load resistance RL with regard to the RS of each sensor, along with the selection of limited range of measured temperatures and relative air humidity, leads to satisfactory correction of the sensor output data, regardless of the division of sensors in categories pursuant to the value of their resistance in manufacturing.

Keywords: load resistence; sensor resistence; air humidity; continuous NH3 monitoring (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://rae.agriculturejournals.cz/doi/10.17221/80/2015-RAE.html (text/html)
http://rae.agriculturejournals.cz/doi/10.17221/80/2015-RAE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:62:y:2016:i:4:id:80-2015-rae

DOI: 10.17221/80/2015-RAE

Access Statistics for this article

Research in Agricultural Engineering is currently edited by Bc. Michaela Polcarová

More articles in Research in Agricultural Engineering from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().