Difference between revisions of "Sensors"
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=== Accelerometer === | === Accelerometer === | ||
These measure ( gasp ) acceleration. May be caused by gravity or the second derivative of position ( relative to an inertial frame ). Since acceleration is a vector to go the whole distace you need a 3 axis sensor, but often 1 or 2 D will do. Often the output is a voltage(s). Feed it to a microcontroller with an a to d converter, perhaps through an operational amplifier. [[Op amp]] | These measure ( gasp ) acceleration. May be caused by gravity or the second derivative of position ( relative to an inertial frame ). Since acceleration is a vector to go the whole distace you need a 3 axis sensor, but often 1 or 2 D will do. Often the output is a voltage(s). Feed it to a microcontroller with an a to d converter, perhaps through an operational amplifier. [[Op amp]] | ||
| − | |||
* [http://podophile.com/2006/08/02/accelerometer-101-understanding-the-nike-ipod-sport-kit-sensor/ Accelerometer 101: Understanding the Nike iPod Sport Kit Sensor] | * [http://podophile.com/2006/08/02/accelerometer-101-understanding-the-nike-ipod-sport-kit-sensor/ Accelerometer 101: Understanding the Nike iPod Sport Kit Sensor] | ||
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*[[PIC Links]] Then search for Accelerometer. | *[[PIC Links]] Then search for Accelerometer. | ||
| − | === | + | === Gas sensor === |
* [[Image:4514.jpg|100px]] [[MiCS 4514]] CO and NOx sensor | * [[Image:4514.jpg|100px]] [[MiCS 4514]] CO and NOx sensor | ||
---- | ---- | ||
| − | === | + | |
| + | === Knock Sensor === | ||
| + | * [http://www.arduino.cc/en/Tutorial/KnockSensor Knock Sensor] | ||
| + | |||
| + | === Magnetic Field Sensor === | ||
* [http://en.wikipedia.org/wiki/Hall_effect_sensor Hall effect sensor] | * [http://en.wikipedia.org/wiki/Hall_effect_sensor Hall effect sensor] | ||
| + | |||
=== Photo Diode/Transistor === | === Photo Diode/Transistor === | ||
*[http://www.ladyada.net/forums/viewtopic.php?p=22251 Hack a MiniPOV3 for IR capture] | *[http://www.ladyada.net/forums/viewtopic.php?p=22251 Hack a MiniPOV3 for IR capture] | ||
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* [http://www.arduino.cc/playground/Main/RotaryEncoders Reading Rotary Encoders] | * [http://www.arduino.cc/playground/Main/RotaryEncoders Reading Rotary Encoders] | ||
| − | == Further | + | |
| + | === Temperature Sensor === | ||
| + | some are analog some use microcontroller interfaces | ||
| + | LM34, LM35 | ||
| + | |||
| + | == Further Reading == | ||
* [http://wsn.oversigma.com/wiki/index.php/Sensors WSN:Sensors] | * [http://wsn.oversigma.com/wiki/index.php/Sensors WSN:Sensors] | ||
Revision as of 19:14, 3 March 2008
Accelerometers, Gyroscopes, Temperature Sensors, Pressure Sensors, ...
Contents
Accelerometer
These measure ( gasp ) acceleration. May be caused by gravity or the second derivative of position ( relative to an inertial frame ). Since acceleration is a vector to go the whole distace you need a 3 axis sensor, but often 1 or 2 D will do. Often the output is a voltage(s). Feed it to a microcontroller with an a to d converter, perhaps through an operational amplifier. Op amp
- Accelerometer Breakout Board - ADXL322 +/-2g SKU#: SEN-00849 Price: $29.95 From SparkFun. Also links to other info.
- Buffered ±2g Accelerometer Product ID: DE-ACCM2G Price: $22.95 Also other links.
- PIC Links Then search for Accelerometer.
Gas sensor
MiCS 4514 CO and NOx sensor
Knock Sensor
Magnetic Field Sensor
Photo Diode/Transistor
Rotary Encoder
Temperature Sensor
some are analog some use microcontroller interfaces LM34, LM35
Further Reading
- WSN:Sensors
- Interfacing with Hardware See the section on "Input" Writtern for the arduino but usefull just for the info on sensors.
- Welcome to the ITP Sensor Workshop Wiki. A whole wiki on sensors, looks good.
