Capacitive sensing of test mass motion with nanometer precision over millimeter-wide sensing gaps for space-borne gravitational reference sensors

被引:55
作者
Armano, M. [1 ]
Audley, H. [2 ,3 ]
Auger, G. [4 ]
Baird, J. [5 ]
Bassan, M. [6 ,7 ]
Binetruy, P. [4 ]
Born, M. [2 ,3 ]
Bortoluzzi, D. [8 ,9 ]
Brandt, N. [10 ]
Caleno, M. [11 ]
Cavalleri, A. [12 ]
Cesarini, A. [9 ,13 ]
Cruise, A. M. [14 ]
Danzmann, K. [2 ,3 ]
Silva, M. de Deus [1 ]
De Rosa, R. [15 ]
Di Fiore, L. [16 ]
Diepholz, I. [2 ,3 ]
Dixon, G. [14 ]
Dolesi, R. [9 ,13 ]
Dunbar, N. [17 ]
Ferraioli, L. [18 ]
Ferroni, V. [9 ,13 ]
Fitzsimons, E. D. [19 ]
Flatscher, R. [10 ]
Freschi, M. [1 ]
Marirrodriga, C. Garcia [11 ]
Gerndt, R. [10 ]
Gesa, L. [20 ]
Gibert, F. [9 ,13 ]
Giardini, D. [18 ]
Giusteri, R. [9 ,13 ]
Grado, A. [16 ,21 ]
Grimani, C. [22 ]
Grzymisch, J. [11 ]
Harrison, I. [23 ]
Heinzel, G. [2 ,3 ]
Hewitson, M. [2 ,3 ]
Hollington, D. [5 ]
Hoyland, D. [14 ]
Hueller, M. [9 ,13 ]
Inchauspe, H. [4 ]
Jennrich, O. [11 ]
Jetzer, P. [24 ]
Johlander, B. [11 ]
Karnesis, N. [2 ,3 ]
Kaune, B. [2 ,3 ]
Korsakova, N. [25 ]
Killow, C. J. [25 ]
Lobo, J. A. [20 ]
机构
[1] European Space Agcy, European Space Astron Ctr, Villanueva Canada, Madrid 28692, Spain
[2] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Callinstr 38, D-30167 Hannover, Germany
[3] Leibniz Univ Hannover, Callinstr 38, D-30167 Hannover, Germany
[4] Univ Paris Diderot, APC UMR7164, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France
[5] Imperial Coll London, Dept Phys, Blackett Lab, High Energy Phys Grp, Prince Consort Rd, London SW7 2BW, England
[6] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[7] INFN, Sez Roma Tor Vergata, I-00133 Rome, Italy
[8] Univ Trento, Dept Ind Engn, Via Sommarive 9, I-38123 Trento, Italy
[9] INFN, Trento Inst Fundamental Phys & Applicat, I-38123 Povo, Trento, Italy
[10] Airbus Def & Space, Claude Dornier Str, D-88090 Immenstadt, Germany
[11] European Space Technol Ctr, European Space Agcy, Keplerlaan 1, NL-2200 AG Noordwijk, Netherlands
[12] CNR, Fondaz Bruno Kessler, Ist Foton & Nanotecnol, I-38123 Povo, Trento, Italy
[13] Univ Trento, Dipartimento Fis, I-38123 Povo, Trento, Italy
[14] Univ Birmingham, Dept Phys & Astron, Edgbaston Pk Rd, Birmingham B15 2TT, W Midlands, England
[15] Univ Napoli Federico II, Dipartimento Fis, Naples, Italy
[16] INFN, Sez Napoli, I-80126 Naples, Italy
[17] Airbus Def & Space, Gunnels Wood Rd, Stevenage SG1 2AS, Herts, England
[18] ETH, Inst Geophys, Sonneggstr 5, CH-8092 Zurich, Switzerland
[19] UK Astron Technol Ctr, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
[20] CSIC, IEEC, Inst Ciencies Espai, Campus UAB,Carrer Can Magrans s/n, Cerdanyola Del Valles 08193, Spain
[21] INAF, Osservatorio Astron Capodimonte, I-I80131 Naples, Italy
[22] Univ Urbino Carlo Bo, DISPEA, INFN, Via S Chiara 27, I-61029 Urbino, Italy
[23] European Space Technol Ctr, European Space Agcy, D-64293 Darmstadt, Germany
[24] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland
[25] Univ Glasgow, Inst Gravitat Res, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[26] Univ Politecn Cataluna, Dept Engn Elect, Barcelona 08034, Spain
[27] CGS SpA Compagnia Gen Spazio, Via Gallarate, I-15020151 Milan, Italy
[28] NASA, Gravitat Astrophys Lab, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
[29] Univ Firenze, Dipartimento Fis & Astron, I-50019 Florence, Italy
[30] INFN, Sez Firenze, I-50019 Florence, Italy
基金
瑞士国家科学基金会;
关键词
LISA;
D O I
10.1103/PhysRevD.96.062004
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on the performance of the capacitive gap-sensing system of the Gravitational Reference Sensor on board the LISA Pathfinder spacecraft. From in-flight measurements, the system has demonstrated a performance, down to 1 mHz, that is ranging between 0.7 and 1.8 aF Hz(-1/2). That translates into a sensing noise of the test mass motion within 1.2 and 2.4 nm Hz(-1/2) in displacement and within 83 and 170 nrad Hz(-1/2) in rotation. This matches the performance goals for LISA Pathfinder, and it allows the successful implementation of the gravitational waves observatory LISA. A 1/f tail has been observed for frequencies below 1 mHz, the tail has been investigated in detail with dedicated in-flight measurements, and a model is presented in the paper. A projection of such noise to frequencies below 0.1 mHz shows that an improvement of performance at those frequencies is desirable for the next generation of gravitational reference sensors for space-borne gravitational waves observation.
引用
收藏
页数:11
相关论文
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