Journal Published Online: 18 September 2008
Volume 36, Issue 6

On-Site Environmental Conditions—Do They Really Affect the Measuring Accuracy?

CODEN: JTEVAB

Abstract

According to requirements of the ISO/IEC 17025:2005 standard, environmental conditions while calibrating are monitored and stated in the calibration certificate. In this paper we present an experiment for evaluation of the behavior of our on-site measuring equipment regarding its specifications and the suitability of these specifications for our typical on-site work. We built a measuring setup for determining the temperature and relative humidity dependence of our on-site equipment. Main units of the equipment were placed in a climatic chamber, while temperature sensors and humidity sensors were placed into an ice bath and humidity generator, respectively. The temperature and relative humidity conditions in the climatic chamber were changed incrementally from 5°C to 45° and from 80 % to 20 %. Results are presented and evaluated. The built measuring setup was proven to be a useful tool for determining the temperature and relative humidity dependence of our on-site equipment. By observing the dynamic transitions of the instrumentation between changes of conditions possible dynamic effects could be evaluated also.

Author Information

Geršak, G.
University of Ljubljana, Ljubljana, Slovenia
Bojkovski, J.
University of Ljubljana, Ljubljana, Slovenia
Batagelj, V.
University of Ljubljana, Ljubljana, Slovenia
Hudoklin, D.
University of Ljubljana, Ljubljana, Slovenia
Begeš, G.
University of Ljubljana, Ljubljana, Slovenia
Pušnik, I.
University of Ljubljana, Ljubljana, Slovenia
Drnovšek, J.
University of Ljubljana, Ljubljana, Slovenia
Pages: 5
Price: $25.00
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Stock #: JTE101866
ISSN: 0090-3973
DOI: 10.1520/JTE101866