| GGG prototype: the reference signal (I) |
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| Led (non
rotating)used |
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| to get a
voltage signal |
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| once per
spin period of |
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| the
rotor (reference |
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| signal) |
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| Microprocessor
outside the |
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| vacuum
chamber will |
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| process
the reference |
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| signal,
combine it with |
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| measurement
data of the |
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| bridges,
and format it for |
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| computer
acquisition as |
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| binary file |
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| C program reads binary file of all |
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| data (bridges+reference signal) in |
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| a run and transforms it in a text file |
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| ready to be analysed |
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