Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Comparison Of Mfcs Between Inrim And Lmps In The Range (10 To 20000) scm3/min
Author: P.G. Spazzini, A. Piccato1, J. Kutin, G. Bobovnik, I. Bajsic
Source: 2012 International Symposium on Fluid Flow Measurement
Year Published: 2012
Abstract: During last winter, a bilateral comparison of gas flow rate measurements was carried out between two laboratories: INRIM, Italy and LMPS, Slovenia. Two mass flow controllers (MFCs) were chosen to be used as transfer standards. Although thermal mass flow sensors are not foreseen as superior transfer standards for gas flow rate 1, we tried to find if they can assure proper stability and robustness when the measurement conditions (pressure, temperature etc.) are set under relatively tight control. One of the reasons for their choice was also having a large number of such instruments on our disposal, which allowed selecting a couple of instruments that permitted an easy comparison through the requested range of flow rates. The results of the comparison were found to be interesting, as they produced some unexpected outcome, and were therefore deemed worthy of publication. The elaboration technique employed a study of the stability of the instruments in the short and medium term that are crucial for validation of measurement capabilities of participating laboratories. In this paper, we describe the measurement system and procedure in Section 2 and the data elaboration in Section 3. Results are discussed in Section 4, while Section 5 summarizes the outcomes and suggests some possible future developments of the analysis

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.