Network measurement

from Wikipedia, the free encyclopedia

A network measurement is used in measurement technology to form an average . It is the determination of a measured variable in a fixed grid of measuring points .

background

With the help of a network measurement, an average value of the variable to be measured is to be determined. Measurement cross-sections are to be determined for each individual network measurement and then measuring points are to be defined in the respective measurement cross-section. The number of measuring points depends on the geometry and size of the measuring cross-section.

In emission monitoring network measurements to inhomgene distributions take into account the component to be measured in for sampling flow channel are applied. In the case of particulate air pollution, emission measurements must always be carried out as network measurements. The sampling was then isokinetic be made. The same applies to measuring cross-sections that are at least 0.1 m 2 .

Individual evidence

  1. ↑ DIN EN 15259 air quality ; Measurement of emissions from stationary sources; Requirements for measuring sections and measuring stations and for the measuring task, the measuring plan and the measuring report; German version EN 15259: 2007. Beuth Verlag, Berlin, p. 6.
  2. ↑ VDI 2066 sheet 1: 2006-11 measurement of particles; Dust measurements in flowing gases; Gravimetric determination of dust load (Particulate matter measurement; Dust measurement in flowing gases; Gravimetric determination of dust load). Beuth Verlag, Berlin, p. 11.
  3. ↑ a b VDI / VDE 2640 sheet 1: 1993-06 network measurements in flow cross-sections ; General guidelines and mathematical principles. Beuth Verlag, Berlin, pp. 6-7.
  4. ↑ a b VDI 3951: 2013-09 Overview on relevant regulations on the performance of emission measurements. Beuth Verlag, Berlin, pp. 14–15.
  5. ↑ VDI 3460 sheet 1 : 2014-02 emission reduction; Thermal waste treatment; Basics (Emission control; Thermal waste treatment; Fundamentals). Beuth Verlag, Berlin. P. 182.
  6. ↑ DIN EN 15259 air quality ; Measurement of emissions from stationary sources; Requirements for measuring sections and measuring stations and for the measuring task, the measuring plan and the measuring report; German version EN 15259: 2007. Beuth Verlag, Berlin, p. 22.
  7. ↑ DIN EN 15259 air quality ; Measurement of emissions from stationary sources; Requirements for measuring sections and measuring stations and for the measuring task, the measuring plan and the measuring report; German version EN 15259: 2007. Beuth Verlag, Berlin, p. 26.