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Thermal diagnostics for LTP

Alberto Lobo1,2, M Nofrarias1 and J Sanjuan1

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This is a short note reporting on the current state of development of the temperature sensors which are part of the LTP Diagnostics Subsystem on board the LISA Pathfinder mission (LPF). A thermal insulator has been designed which ensures sufficient stability of a set of eight NTC sensors (negative temperature coefficient of resistance or thermistors), and the front-end electronics has also been designed and manufactured. Tests have been performed which nearly approach the goal of a global stability of 10−5 K Hz−1/2.


PACS

04.80.Nn Gravitational wave detectors and experiments

95.55.Ym Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques

07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing

07.20.Dt Thermometers

MSC

83C35 Gravitational waves

80A20 Heat and mass transfer, heat flow

Subjects

Instrumentation and measurement

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 10 (21 May 2005)

Received 28 October 2004, in final form 4 February 2005

Published 21 April 2005



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