130-28029 Parallax Inc, 130-28029 Datasheet - Page 118

• Manufacturer Part Number: 130-28029
• Description: KIT PARTS SMART SENSORS
• Manufacturer: Parallax Inc

Specifications of 130-28029

• Accessory Type: Education Kit
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Page 106 · Smart Sensors and Applications
Figure 3-31: Tilting the Board of Education, Tilting the Memsic Accelerometer
Figure 3-32 shows how arcsine can be used to determine the tilt angle. Looking at the
Memsic Accelerometer Module from the side, the component of gravity acting on its x
is the x-axis acceleration (A
determined by taking the arcsine of A
The same principle applies to the accelerometer's y
θ
θ
X
X
=
=
sin
sin
−
−
1
1
⎛
⎜
⎜
⎝
⎛
⎜
⎜
⎝
A
A
g
g
X
Y
⎞
⎟
⎟
⎠
⎞
⎟
⎟
⎠
x
), which is g × sin θ. Since sin θ is equal to A
x
/ g. In terms of an equation, that's :
m
axis, and the result is:
x
/ g, θ
x
can be
m