ACC XServo Calibration Data
---------------------------

XServo data conversion parameters

Xservo acceleration conversion

XServo(m/s2) = (XServo_Eng_Val/(R*sf)-offset)*9.80708                   Eq. 1


sf=1.30675E-03-1.35046E-07*(T(K))+4.02821E-10*(T(K))^2                  (A.1)

offset = -8.9642327E-04+3.83652E-06*(T(K))-0.00761E-06*(T(K))^2  g      (A.2)
obtained as polynomial fit of the value reported in table, page 5 of [AD4]
where T(K)= temperature sensor is Temp1 [K]:

Temp1(K)= 109,23 (0,1Temp1_Eng_Val+2,5)                                 Eq. 3

R               Gain    Resolution
453 O           Low     Low
4.294718 E03O   High    Low
411109 O        Low     High
3.897566E06 O   High    High


g is the terrestrial acceleration of gravity: 9.80708 m/s2 (as provided by
manufacturer)


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ACC Piezo Calibration Data
--------------------------

Piezo parameters calculation

Piezo acceleration conversions

XPiezo(g)= ((XPIEZO_Eng_Val-m*Temp2_Eng_Val+offset)/sf)*9.80655         Eq. 2

g is the terrestrial acceleration of gravity: 9.80665 m/s2 (as provided by
[AD4])
.  

ACC Piezo m (temperature gradient) offset (temperature offset) as derived 
during In-Flight CO (at 0 gravity). For mission data, the values considered 
are relevant to the most recent CO
        XPZR            YPZR            ZPZR
        m       offset  m       offset  m       offset
FCO16   -0,408  4,764   -0,288  -0,892  -0,416  3,705

The value of sf (scale factor) for each sensor (X,Y,Z) is calculated as follow
[AD4] from calibration data:

sfx= 0,3122-0,0007(Temp2(K)-300)                        (B.1)
sfy= 0,2395-0,0007(Temp2(K)-300)                        (B.2)
sfz= 0,1826-0,0007(Temp2(K)-300)                        (B.3)
where 
Temp2(K)= 109,71 (0,1Temp2_Eng_Val+2,5)                 Eq. 3


Piezo calibration data as from Calibration data sheet
Sensor  Sensitivity (@100Hz, 10 g pk)   Transverse sensitivity
X PIEZO 0.3122 mV/g                             0.7%
YPIEZO  0.2395 mV/g                             0.4%
ZPIEZO  0.1826 mV/g                             0.6%
Thermal sensitivity shift -0.07% deg C typical