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bare-tune.txt

Kyle Hazelwood, 01/15/2015 12:01 PM

 
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The  delta-tune, operating tune(op-tune), bare tune in R2
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dQ.h/v(delta-tune) -  
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	Input to trombone  dQ.h/v -> required QT currents calculation
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              It is only matter in R2 tune controls.
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Op-tune(operating-tune or total tune) -
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	Seen as "Q.h/v" in the main tune page
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	Q.h/v = bare tune.h/v + dQ.h/v
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	only for display
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Bare tune - 
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	seen in parameter page and used to calc total tune, defined as machine               tune with zero currents in trombones. Current values are from Mei-qin's                MAD 'tape' output file.  
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	Only for display, no where it entered calc to affect any setting.
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	It is one of parameters stored in DB table pa4208_tune_pars.
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             By measuring the tune one can have more accurate bare tune and 
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             so op-tune. But replacing with a new number doesn't affect tune 
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	control.