Internship time series analysis


Time series analysis

The fiscal metering of natural gas is often performed using a flow meter and a gas chromatograph. The flow meter is used to measure the volume (𝑉) of the gas passing the metering station and the gas
chromatograph is used to measure the composition, from which the calorific value (𝐻) is determined. The energy is calculated as  𝐸 = ΣNₜ=1  𝐻ₜVₜ
The uncertainty of the energy delivered (or received) is an important parameter for operating the gas grid, ensuring that suppliers can feed the grid and users can draw gas from the grid. Current  methods to estimate the uncertainty associated to the energy do not take into account temporal correlations among subsequent measurements. The aim of this internship is to validate the proposed  methodology to determine temporal correlations between measurements using time series analysis. Specifically, the following steps will be performed:

  1. Study relevant literature
  2. Generate a synthetic dataset reproducing some of the characteristics typical in volume flow and composition measurements in a gas grid
  3. Validate and improve the proposed methodology on the synthetic dataset
  4. Further analyze the available measurement data


Solliciteer en word onze collega!

Lydia de Koning
HR Business Partner

About VSL

VSL is the National Metrology Institute of the Netherlands and has over a hundred passionate employees. We develop and manage national measurement standards on behalf of the Dutch government. We ensure that these are among the best in the world and are internationally accepted. We also provide customer calibrations, customized projects, reference materials, interlaboratory comparisons and training. As a national metrology institute (NMI), we make the measurement results of companies, laboratories and institutions directly traceable to international standards. VSL thus makes an important contribution to the reliability, quality and innovation of products and processes in business and society.

Internship term

5-7 months


Hybrid. VSL main office is in Delft.


A monthly allowance of € 615,- (gross) is applicable.

If you are interested and will apply, please send your CV and letter to and/or or .