SCA100T 查看數據表（PDF） - Murata Manufacturing

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SCA100T

THE SCA100T DUAL AXIS INCLINOMETER SERIES

Murata Manufacturing 

2 Functional Description

2.1 Measuring Directions

X-axis

SCA100T Series

Y-axis

VOUT >

VOUT =2.5V

Figure 8. The measuring directions of the SCA100T

> VOUT

2.2 Voltage to Angle Conversion

Analog output can be transferred to angle using the following equation for conversion:





arcsin



Vout  Offset

Sensitivity



where: Offset = output of the device at 0° inclination position, Sensitivity is the sensitivity of the

device and VDout is the output of the SCA100T. The nominal offset is 2.5 V and the sensitivity is 4

V/g for the SCA100T-D01 and 2 V/g for the SCA100T-D02.

Angles close to 0° inclination can be estimated quite accurately with straight line conversion but for

the best possible accuracy, arcsine conversion is recommended to be used. The following table

shows the angle measurement error if straight line conversion is used.

Straight line conversion equation:

  Vout  Offset

Sensitivity

Where: Sensitivity = 70mV/° with SCA100T-D01 or Sensitivity= 35mV/° with SCA100T-D02

Tilt angle [°]

0

1

2

3

4

5

10

15

30

Straight line conversion error [°]

0

0.0027

0.0058

0.0094

0.0140

0.0198

0.0787

0.2185

1.668

Murata Electronics Oy

www.muratamems.fi

Subject to changes

Doc. nr. 8261800

9/17

Rev.B2

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