English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Thermal conditions in the LTP, the LISA Technology Package, are required tobe very stable, and in such environment precision temperature measurements arealso required for various diagnostics objectives. A sensitive temperaturegauging system for the LTP is being developed at IEEC, which includes a set ofthermistors and associated electronics. In this paper we discuss the derivedrequirements applying to the temperature sensing system, and address theproblem of how to create in the laboratory a thermally quiet environment,suitable to perform meaningful on-ground tests of the system. The concept is atwo layer spherical body, with a central aluminium core for sensor implantationsurrounded by a layer of polyurethane. We construct the insulator transferfunction, which relates the temperature at the core with the laboratory ambienttemperature, and evaluate the losses caused by heat leakage through connectingwires. The results of the analysis indicate that, in spite of the verydemanding stability conditions, a sphere of outer diameter of the order onemetre is sufficient. We provide experimental evidence confirming the modelpredictions.Comment: 18 pages, 5 figures, LaTeX2e (compile with pdflatex), sumbitted to  CQG. This paper is a significant extension of gr-qc/060109

On-ground tests of the LISA PathFinder thermal diagnostics system