
IMUs AND ACCELEROMETERS
Inertial Measurement Unit
Measure acceleration and gyroscope
• serve as orientation sensors in the human
field of motion.
• At the core of Segways, Airplanes, Ships,
some robots.
• Supplies data to guidance controller.
• IMUs are “blind” and relies on previous
calculations to know their current
location. Periodic “zeroing” or dead
reckoning is needed.
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H BRIDGE
H Bridge has two functions:
• Boost the power to rotate a motor
• Control direction DC motor
• Schematic offers forward and
reverse motor direction.
• H-bridge got its name from its
schematic shape. That is, it forms
an H. Four switching elements at
the "corners" of the H and the
motor forms the cross bar.
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