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Sensores, Transmisores,
Interruptores
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Información
• http://www.omega.com/techref/
• http://www.wika.us/knowledge_en_us.WIKA
•
http://www.sensorsmag.com/ •
http://www.sensorwiki.org/doku.php
http://www.omega.com/techref/http://www.wika.us/knowledge_en_us.WIKAhttp://www.sensorsmag.com/http://www.sensorwiki.org/doku.phphttp://www.sensorwiki.org/doku.phphttp://www.sensorsmag.com/http://www.wika.us/knowledge_en_us.WIKAhttp://www.omega.com/techref/
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Fabricantes
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Tipos de Sensores
• Analógicos
– 4-20 mA
– 0 – 5 V DC , 0 – 10 V DC , -10 - +10
V DC
• Discretos
• Digitales
– IIC (I2C) / TWI (2-Wire)
– SPI – One-Wire
– HART (4-20 mA + Datos)
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Discretos
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SPI
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I2C
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One-Wire
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Accelerometers
• What’s an accelerometer measure? how fast
something is speeding up or slowing down. You’ll
see acceleration displayed either in units of
meters per second squared (m/s2), or G-force (g).•
Accelerometers are used to sense both static
(e.g. gravity) and dynamic (e.g. sudden
starts/stops) acceleration.• An accelerometer can tell you how
it’s oriented
with respect to the Earth’s surface
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Accelerometers
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Gyroscopes
• Gyroscopes measure angular velocity, how
fast something is spinning about an axis.
• You’ll usually see angular velocity represented
in units of rotations per minute (RPM), or
degrees per second (°/s).
• The three axes of rotation are either
referenced as x, y, and z, or roll, pitch, and
yaw.
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Gyroscopes
• If you’re trying to monitorthe orientation of anobject in
motion, anaccelerometer may not
give you enoughinformation to knowexactly how it’s oriented.
• Unlike accelerometers
gyros are not affected bygravity, so they make agreat complement
toeach other
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Gyroscopes
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Inertial Measurement Unit (IMU)
• Gyroscopes and accelerometers are great, butalone they don’t
give you quite enough
information to be able to comfortably calculate
things like orientation, position, and velocity.• To measure
those and other variables many
people combine the two sensors, to create aninertial measurement
unit (IMU) which provides
two to six degrees of freedom (DOF).• IMUs are widely used in
devices that require
knowledge of their exact position.
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Inertial Measurement Unit (IMU)
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Inertial Measurement Unit (IMU)
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Acc, Gyro and IMU
Accelerometer, Gyro and IMU Buying Guide
• https://www.sparkfun.com/pages/accel_gyro
_guide
https://www.sparkfun.com/pages/accel_gyro_guidehttps://www.sparkfun.com/pages/accel_gyro_guidehttps://www.sparkfun.com/pages/accel_gyro_guidehttps://www.sparkfun.com/pages/accel_gyro_guide
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Donde Comprar
