SCA3000-D01 datasheet(40/43 Pages) VTI

40 / 43 page

SCA3000 Series

VTI Technologies Oy

40/ 43

www.vti.fi

Doc.Nr. 8257300A.07

Rev.A.07

Equation 10

100

⋅

Cross

where SXY is X-axis sensitivity to Y-axis acceleration [Count/g], SXZ is X-axis sensitivity to Z-axis

acceleration [Count/g] and SX is sensitivity of X-axis [Count/g].

Cross-axis sensitivity [%] of Y-axis is given by

Equation 11

100

⋅

Cross

where SYX is Y-axis sensitivity to X-axis acceleration [Count/g], SYZ is Y-axis sensitivity to Z-axis

acceleration [Count/g] and SY is sensitivity of Y-axis [Count/g].

Cross-axis sensitivity [%] of Z-axis is given by

Equation 12

100

⋅

Cross

where SZX is Z-axis sensitivity to X-axis acceleration [Count/g], SZY is Z-axis sensitivity to Y-axis

acceleration [Count/g] and SZ is sensitivity of Z-axis [Count/g].

Cross-axis sensitivity of SCA3000 family is measured in centrifuge over specified measurement

range during qualification. Correct mounting position of component is important during the

measurement of cross-axis sensitivity.

8.7

Turn-on time

Turn-on time is the time when the last of one X, Y, Z axis output readings stabilizes into its final

value after XRESET is pulled high. The final value limits in turn-on time measurements is defined to

be ±1 % of the sensor’s full scale measuring range (for example for SCA3000-D01 ±2g

→

FS = 2 g). Turn-on time definition for Z-axis is presented in Figure 25 below.

SCA3000 output

inside ±1% FS

limits

SCA3000

Z-axis output

Acceleration

Turn on time

Time scale

XRESET rise up

→ SCA3000 starts

Figure 25. Turn-on time definition for one axis.

SCA3000-D01 Datasheet(PDF) 40 Page - VTI technologies

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