منابع مشابه
Hysteresis Nutation Damper for Spin Satellite
Hysteresis dampers are commonly used in Passive magnetic Attitude Control System (PACS). In PACS these rods produce a damping torque and reduce the satellite angular momentum and angular velocity. In this paper, a spin satellite was investigated which utilizes a passive magnetic damper consisting of magnetic hysteresis rods aligned with principal axis or spin axis of satellite and de-tumbling o...
متن کاملSpin States of C60 and C120O (n ) 2, 3, 4) Anions Using Electron Spin Transient Nutation Spectroscopy
Electron spin transient nutation (ESTN) experiments show that the spin multiplicity of the ground state of C60 in frozen solution is a doublet with S ) /2. In purified samples, there is no evidence for excited states or other species with higher multiplicity. In the anions of C120O (n ) 2, 3, 4), where the CW EPR experiments have shown that a mixture of species is present, ESTN experiments conf...
متن کامل2D Off-Resonance Nutation NQR Spectroscopy of Spin 3/2 Nuclei*
The effects of off-resonance irradiation in nutation NQR experiments are demonstrated both experimentally and theoretically. The theoretical description of the off-resonance effects in 2D nutation NQR spectroscopy is given, and general exact formulas for the asymmetry parameter are obtained. It is shown that the outcome of the off-resonance nutation experiments depends on the data acquisition p...
متن کاملVISCOUS NUTATION DAMPER, MODELING AND ANALYSIS
In some aerospace vehicles, the tracking sensors which act in a tracking loop as stabilizer are mounted on a two degree of freedom gyro. The gyro must align its rotor axis with the line of sight in order to remove tracking errors. The tracking precision and sensitivity are functions of the gyros performance. One of the main factors in reducing the precision and producing instabilities is nutati...
متن کاملQuadrupole Nutation NMR in Solids *
The nutation frequency of a quadrupolar spin I depends on the quadrupole interaction. From nutation spectra, therefore, one obtains information about the direct surrounding of the atom. The theory of the straightforward and of more complicated nutation N M R experiments is outlined. Two applications of nutation N M R , to 2 3 Na in zeolites and A1 in alumina, are shown. In this way in CaO • 6 A...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2011
ISSN: 0096-3941,2324-9250
DOI: 10.1029/2011eo040004