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1: Relative distance variations between TM1 and TM2 (blue line) and variations of the distance between TM1 and the EH (red line) when a current of 1 mA at a frequency of 1 Hz is fed to the coil next to TM1. The red line shows that the S/C motion is considerably noisier than that of the TMs.

1: Relative distance variations between TM1 and TM2 (blue line) and variations of the distance between TM1 and the EH (red line) when a current of 1 mA at a frequency of 1 Hz is fed to the coil next to TM1. The red line shows that the S/C motion is considerably noisier than that of the TMs.

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Figure 4.1: Design picture of the LTP. Coils can be seen around the VE...
Figure 4.2: Global concept drawing of the coils' positions (left), and...
Table 5 .1: On-axis magnetic field and gradient values at three points...
Figure 6.1: Relative distance variations between TM1 and TM2 (blue...
Magnetic experiments on board the LTP
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  • Jan 2011
Document tècnic per la missió espacial LISA Pathfinder. Missió espacial de l'Agència Espacial Europea (ESA). Preprint
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Context 1
... the action of the control loops does prevent the crash. Fig- ure 6.1 shows the x 1 −x 2 interferometer channel signal when TM-1 is subjected to the oscillating magnetic field of the closest coil, together with the x 1 interferometer channel readout, which gives a measure of the distance between the TM and its Electrode Housing (EH). As shown, the TM offset only varies by a few nano-metres during the experiment. ...