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July 31, 2010 Register Login
 
 Technical InfoMagnetometer Specification   

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Characteristics
Conditions*
Min
Typ
Max
Units
Field Range
Full scale (FS) – total applied field
-1
 
1
gauss
Full Digital decimal counts
Full scale (FS) – total applied field
200
 
8000
counts
Resolution on Full Rotation
decimal counts per North America earth magnet ( 0.6 guass)
 
4000
4800
counts
Vref (zero offset setting)
Factory calibration setting center point
7500
8192
8900
counts
Linearity Error
Best fit straight line ± 1 gauss
 
0.4
 
%FS
Hysteresis Error
3 sweeps across ±1 gauss
 
0.06
 
%FS
Repeatability Error
3 sweeps across ±1 gauss
 
0.1
 
%FS
Sensitivity
Set/Reset Current = 0.5A
0.8
1
1.2
mV/V/gauss
Noise Density
@ 1kHz, Vbridge=5V
 
50
 
nV/sqrt Hz
Resolution
50Hz Bandwidth, Vbridge=5V
 
120
 
mgauss
Bandwidth
Magnetic signal (lower limit = DC)
 
10
 
KHz
Bridge Offset Tempco
TA= 0 to 70°C, No Set/Reset, ±1 gauss TA= 0 to 70°C, With Set/Reset
 
±700 ±10
 
ppm/°C
Cross-Axis Effect
Cross field = 1 gauss, Happlied = ±1 gauss
 
±0.3
 
%FS
Max. Exposed Field
No perming effect on zero reading
 
 
10000
gauss
X,Y, Z sensor Orthogonality
X toY sensors X to Z or Y to Z
 
0.01
1
degree

 

 
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