The aim of this work package is to improve the accuracy of the underlying spectral line intensities of the sensor molecules CO, CO2 and O2 in the temperature range of 200 K to 400 K that are needed for the RVSGT temperature method. Both experimental measurements and theoretical calculations will be carried out and intercompared.
The aim of this work package is to develop and evaluate ro-vibrational spectroscopic gas thermometry. To reach this goal, development and testing in highly controllable environment is needed for determining the best spectral parameters and analysis methods allowing high absolute accuracy thermometry. This work package is closely linked to WP1 and WP3. WP1 will provide theoretical calculation and measurements of line intensities of selected bands of the CO and CO2 molecules covering the temperature range from 200 K to 400 K. WP3 will provide input for validation of the equivalence of temperature measurements between all laboratories performing spectroscopic measurements and in relation to the overall uncertainty evaluations provide classical temperature measurements and calibrations.
The aim of this work package is to establish the link between the new spectroscopic measurements of gas temperature and the best possible realisation of thermodynamic temperature. The project will establish the link via ITS-90 with calibrated contact sensors in an optimal geometric configuration and then via published T-T90 values. This work package is closely connected with WP1 and WP2. The accurate measurement of the improved spectral line parameters in Tasks 1.4 and 1.5 requires knowledge of the absolute temperatures in each of the setups. Furthermore, for a reliable cross-validation between the spectrometric methods (WP2, Task 2.3) and setups it is necessary to validate the equivalence of temperature measurements between all laboratories.
To share the findings of the project, WP 4 includes building a stakeholder community, maintaining the website, sending out an annual newsletter, inform the scientific and general public via social media, being involved in standardisation activities (contact with standards bodies and committees)as well as scientific discussion at cinferences etc., staff exchanges, and organising stakeholder workshops.
The project will be managed on a day-to-day-basis by the dedicated coordinator from PTB, Dr. Gang Li. The project manager will be supported by the project management board (PMB) consisting of the coordinator and the work package leaders who will act as official delegates from each work package adn , furthermore, by a project assistant, Judith Krakowski, M.A. When necessary, experts in the field will be included in the PMB to help with validation of the technical decisions made by the PMB.