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  • 1
    Electronic Resource
    Electronic Resource
    Direct digital frequency modulation in NMR spectrometers (1991)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 62 (1991), S. 1285-1287 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An instrument is described that allows fast phase-continuous frequency switching and modulation. The instrument is designed to switch to a new frequency for a period of time or to a series of frequencies, and then switch back to the original frequency with the phase of the original output signal as if no frequency switching occurred (phase-coherent switching). The described device is implemented in Bruker NMR spectrometers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142486
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Time-encoded nuclear magnetic resonance spectrometer control (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 3340-3341 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A device is described that enables time control of many external devices on any nuclear magnetic resonance spectrometer even if it has only one control output available for switching external appliances. Furthermore, it allows activation of extra devices during so-called "wait states'' which cannot be served by most standard spectrometer setups. The basic idea is to decode the pulse length applied to one "standard'' control output in order to create a whole new set of "nonstandard'' controls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144305
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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