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    User name Yi Qiang

    Log entry time 14:16:35 on June 17, 2009

    Entry number 281902

    keyword=Current Settings for Compass survey

    BigBite ON: 518A
    
    = 0 degrees =
    Small Coil: -5.608
    Large Coil: -4.533
    Vertical Coil: 0.168
    
    = 45 degrees =
    Small Coil: -0.952
    Large Coil: -7.313
    Vertical Coil: 0.168
    
    = 90 degrees =
    Small Coil: 4.285
    Large Coil: -5.932
    Vertical Coil: 0.168
    
    = 135 degrees =
    Small Coil: 7.032
    Large Coil: -1.207
    Vertical Coil: 0.168
    
    = 180 degrees =
    Small Coil: 5.659
    Large Coil: 4.097
    Vertical Coil: 0.168
    
    = 225 degrees =
    Small Coil: 1.006
    Large Coil: 6.875
    Vertical Coil: 0.168
    
    = 270 degrees =
    Small Coil: -4.234
    Large Coil: 5.507
    Vertical Coil: 0.168
    
    = 315 degrees =
    Small Coil: -6.966
    Large Coil: 0.773
    Vertical Coil: 0.168
    
    === Current/Field Coefficients ===
    
    float32 K = 0.54998;
    float32 EBB = -0.168184;
    float32 W = -0.11322;
    
    float32 R = 0.987111;
    float32 ag = -0.0268564;
    float32 gamma = -0.021912;
    
    float32 bd = 0.216491;
    float32 delta = 0.13428;
    
    I_s = B_s/Scale - (ag-gamma) - gamma*I_BB;
    I_l = B_l/R/Scale - (bd-delta) - delta*I_BB;
    I_v = B_v/K/Scale - (EBB-W) - W*I_BB;
    
    float32 s=Theta*pi/180;
    Z=cos(s)*z+sin(s)*x;
    X=-sin(s)*z+cos(s)*x;
    
    s = -37.0508 degrees
    
    Scale = -3.537