Journal ArticleDOI
Thermal diagnostics front-end electronics for LISA Pathfinder
TLDR
The front-end electronics design and the associated temperature sensors to achieve the LTP requirements: noise equivalent temperature of 10 microK Hz(-12) in the frequency range from 1 to 30 mHz at room temperature are described.Abstract:
Precision temperature measurements are required in the LTP, the LISA technology package, for various diagnostics objectives. In this article, we describe in detail the front-end electronics design and the associated temperature sensors to achieve the LTP requirements: noise equivalent temperature of 10 microK Hz(-12) in the frequency range from 1 to 30 mHz at room temperature. We designed an ac Wheatstone bridge and a subsequent digital demodulation to minimize 1/f noise. We show experimental results where the required sensitivity in the measurement bandwidth is fulfilled.read more
Citations
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Journal ArticleDOI
Sub-Femto-g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results
Michele Armano,Heather Audley,G. Auger,J. Baird,Massimo Bassan,Pierre Binétruy,M. Born,Daniele Bortoluzzi,N. Brandt,M. Caleno,L. Carbone,Antonella Cavalleri,A. Cesarini,Giacomo Ciani,G. Congedo,A. M. Cruise,Karsten Danzmann,M. de Deus Silva,R. De Rosa,M. Diaz-Aguilo,L. Di Fiore,Ingo Diepholz,G. Dixon,Rita Dolesi,N. Dunbar,Luigi Ferraioli,Valerio Ferroni,Walter Fichter,E. D. Fitzsimons,R. Flatscher,M. Freschi,A. F. García Marín,C. García Marirrodriga,R. Gerndt,Lluis Gesa,Ferran Gibert,Domenico Giardini,R. Giusteri,F. Guzmán,Aniello Grado,Catia Grimani,A. Grynagier,J. Grzymisch,I. Harrison,Gerhard Heinzel,M. Hewitson,Daniel Hollington,D. Hoyland,Mauro Hueller,Henri Inchauspe,Oliver Jennrich,Ph. Jetzer,Ulrich Johann,B. Johlander,Nikolaos Karnesis,B. Kaune,N. Korsakova,Christian J. Killow,J. A. Lobo,Ivan Lloro,L. Liu,J. P. López-Zaragoza,R. Maarschalkerweerd,Davor Mance,V. Martín,L. Martin-Polo,J. Martino,F. Martin-Porqueras,S. Madden,Ignacio Mateos,Paul McNamara,José F. F. Mendes,L. Mendes,A. Monsky,Daniele Nicolodi,Miquel Nofrarías,S. Paczkowski,Michael Perreur-Lloyd,Antoine Petiteau,P. Pivato,Eric Plagnol,P. Prat,U. Ragnit,B. Rais,Juan Ramos-Castro,J. Reiche,D. I. Robertson,H. Rozemeijer,F. Rivas,G. Russano,J Sanjuán,P. Sarra,A. Schleicher,D. Shaul,Jacob Slutsky,Carlos F. Sopuerta,Ruggero Stanga,F. Steier,T. J. Sumner,D. Texier,James Ira Thorpe,C. Trenkel,Michael Tröbs,H. B. Tu,Daniele Vetrugno,Stefano Vitale,V Wand,Gudrun Wanner,H. Ward,C. Warren,Peter Wass,D. Wealthy,W. J. Weber,L. Wissel,A. Wittchen,A. Zambotti,C. Zanoni,Tobias Ziegler,Peter Zweifel +118 more
TL;DR: The first results of the LISA Pathfinder in-flight experiment demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with a relative acceleration noise with a square root of the power spectral density.
Journal ArticleDOI
Design and optimization of a light-emitting diode projection micro-stereolithography three-dimensional manufacturing system
Xiaoyu Zheng,Joshua R. Deotte,Matthew P. Alonso,Matthew P. Alonso,George R. Farquar,Todd H. Weisgraber,Steven Gemberling,Howon Lee,Nicholas X. Fang,Christopher M. Spadaccini +9 more
TL;DR: The critical process parameters that influence polymerization depth and structure quality are discussed, and the LED-based PμSL system for fabricating highly complex three-dimensional structures for a large range of applications is presented.
Journal ArticleDOI
Temperature measurement and stabilization in a birefringent whispering gallery resonator
TL;DR: Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery mode resonator.
Journal ArticleDOI
Temperature measurement and stabilization in a birefringent whispering gallery mode resonator.
TL;DR: In this paper, temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery mode resonator.
Journal ArticleDOI
The diagnostics subsystem on board LISA Pathfinder and LISA
Priscilla Canizares,A. Conchillo,Enrique García-Berro,Lluis Gesa,Catia Grimani,Ivan Lloro,Alberto Lobo,Ignacio Mateos,Miquel Nofrarías,Juan Ramos-Castro,J Sanjuán,Carlos F. Sopuerta +11 more
TL;DR: The scientific and technical aspects of this subsystem, which includes thermal diagnostics, magnetic diagnostics and a radiation monitor, as well as the prospects for their integration within the rest of the LTP, are described.
References
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Journal ArticleDOI
Review of temperature measurement
TL;DR: In this article, a review of the general techniques available, as well as specific instruments for particular applications, is presented, based on the relative merits of different techniques, a guide for their selection is provided.
Book
Design with Operational Amplifiers and Analog Integrated Circuits
TL;DR: In this article, the authors present a design-oriented course for operational amplifiers and analog ICs, which includes additional problems, more in-depth coverage of negative feedback, more effective layout, updated technology (current feedback and folded-cascode amplifiers, and low-voltage amplifiers), and increased topical coverage (current-feedback amplifier, switching regulators and phase-locked loops).
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TL;DR: Signal Conditioning for Resistive Sensors Reactance Variation and Electromagnetic Sensors and Signals for Self-Generating Sensors Signal conditioning for self-Generation Sensors Digital Sensors Telemetry and Data Acquisition.
Journal ArticleDOI
The LTP interferometer and phasemeter
Gerhard Heinzel,V. Wand,Antonio Garcia,Oliver Jennrich,Claus Braxmaier,D. I. Robertson,Kevin Middleton,D. Hoyland,Albrecht Rüdiger,Roland Schilling,Ulrich Johann,Karsten Danzmann +11 more
TL;DR: The LISA Technology Package (LTP) is a technology demonstration mission in preparation for the LISA space-borne gravitational wave detector as mentioned in this paper, which monitors the distance between two test masses with a noise level of 10 pm Hz−1/2 between 3 mHz and 30 mHz.
Book
Analog signal processing
TL;DR: This book discusses signals and Signal Processing, including AC/DC Signal Conversion, Analog Signal Switching, Multiplexing and Sampling, and more.
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