Advance Sensor

8/13/2019 Advance Sensor

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Advanced SensorsBy: Ashay Tejwani

Presenter: Debajyoti Nandy


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Purpose

To give you a general idea of whichsensor will be best suited for a certain

application you think of.


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Temperature Sensors


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Infra Red Thermopile Sensors

All objects give out IR Radiation.

This radiation is a fixed function of the

temperature.

IR Thermopile sensors give a voltage

output proportional to the intensity of

radiation received.

This can be then related to thetemperature of the object.


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Ambient Temperature sensor

LM35DT

A precise integrated circuit

temperature sensor

Has linearity better than thermistorsand an accuracy of 0.5oC


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Ambient Temperature sensor

Uses:

Thermostat

Along thermopiles to remove ambient

temperature interference.

http://www.therobotlab.co.uk/2011/sim

ple-thermostat-lm35dt-arduino/
http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/http://www.therobotlab.co.uk/2011/simple-thermostat-lm35dt-arduino/


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Light sensors

A Light Dependent Resistor (LDR)gives a resistance proportional to the

ambient light.

The resistance decreases as intensityof light increases.


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Light sensors

Uses:

Automating lights to start working when

ambient light falls below a minima.

In detecting the intensity of light from asource.

http://little-

scale.blogspot.in/2007/11/connecting-ldr-to-arduino.html
http://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.htmlhttp://little-scale.blogspot.in/2007/11/connecting-ldr-to-arduino.html


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Occupancy Sensors


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Motion Sensor

These sensors work by detectingchanges in IR power/sound/ultrasonic

waves/microwaves within their Field of

View. The sensor works by converting these

changes into 5 Volts signal on its

output.


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Motion Sensor

Uses:

Motion detection

Object presence detection

Surveillance

http://elcodis.com/parts/2241627/AMN

34112.html
http://elcodis.com/parts/2241627/AMN34112.htmlhttp://elcodis.com/parts/2241627/AMN34112.htmlhttp://elcodis.com/parts/2241627/AMN34112.htmlhttp://elcodis.com/parts/2241627/AMN34112.html


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Humidity Sensor


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Humidity Sensor

The sensor element is built out of afilm capacitor on different substrates

(glass, ceramic, etc.).

The dielectric is a polymer whichabsorbs or releases water proportional

to the relative environmental humidity,

and thus changes the capacitance ofthe capacitor, which is measured by

an onboard electronic circuit.


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Humidity Sensor

Uses: Moisture regulation

Wheather conditions measurement

Sound measurement experiments

http://www.instructables.com/id/Arduin

o-Temperature-Humidity/
http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/http://www.instructables.com/id/Arduino-Temperature-Humidity/


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Force Sensors


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Force Sensors

These sensors work on the primaryprinciple of Piezo-electricity.

They convert mechanical stimulus into

an electrical / voltage signalproportional to the deformation it

brings about on the piezo sensitive

element.


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Force Sensors

Uses: Pressure Gauge

Tap detection

Force/impact measurement Load Cells

Strain Gauge

http://www.ladyada.net/learn/sensors/fsr.html
http://www.ladyada.net/learn/sensors/fsr.htmlhttp://www.ladyada.net/learn/sensors/fsr.htmlhttp://www.ladyada.net/learn/sensors/fsr.htmlhttp://www.ladyada.net/learn/sensors/fsr.html


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IMUs


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IMUs

Inertial Measurement Units: anelectronic device that measures and

reports on a craft's velocity,

orientation, and gravitational forces,using a combination of accelerometers

and gyroscopes, sometimes also

magnetometers


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IMUs

Uses: Unmanned Aerial Vehicles

Quadrotors

Satellites

http://code.google.com/p/ardu-imu/
http://code.google.com/p/ardu-imu/http://code.google.com/p/ardu-imu/http://code.google.com/p/ardu-imu/http://code.google.com/p/ardu-imu/


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Accelerometers

Accelerometers are commonly used tomeasure rate of change of velocity and tilts insystems.

Their usage has become common in a widerange of devices, including mobile phones.

Refer to: Hand Gesture Input Gloves

Gesture Controlled Car

Hypnotized car

all completed in ECSP 2011, based onaccelerometers.

http://arduino.cc/en/Tutorial/ADXL3xx

http://www2.usfirst.org/2005comp/Manuals/A

cceler1.pdf
http://arduino.cc/en/Tutorial/ADXL3xxhttp://www2.usfirst.org/2005comp/Manuals/Acceler1.pdfhttp://www2.usfirst.org/2005comp/Manuals/Acceler1.pdfhttp://www2.usfirst.org/2005comp/Manuals/Acceler1.pdfhttp://www2.usfirst.org/2005comp/Manuals/Acceler1.pdfhttp://arduino.cc/en/Tutorial/ADXL3xx


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Gyrsocope

A gyroscope measures rate of changeof acceleration.

It is used in inertial measurement units

along with an accelerometer http://www.instructables.com/id/Guide-

to-gyro-and-accelerometer-with-

Arduino-inclu/
http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/


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Magnetometer

It measures the strength and directionof magnetic fields.

It can detect ferrous materials to a

greater depth than a normal metaldetector.


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Flex Sensors


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Flex Sensors

The resistance of these sensors varieswith the extent to which one bends

them.

However, their sensitivity degradeswith time. Hence, not a highly

recommended sensor.

Also, contacts melt on soldering,hence difficult to interface.


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Flex Sensors

Uses: Finger motion detection

Detecting motion of joints

http://www.sparkfun.com/datasheets/Sensors/Flex/flex22.pdf
http://www.sparkfun.com/datasheets/Sensors/Flex/flex22.pdfhttp://www.sparkfun.com/datasheets/Sensors/Flex/flex22.pdfhttp://www.sparkfun.com/datasheets/Sensors/Flex/flex22.pdfhttp://www.sparkfun.com/datasheets/Sensors/Flex/flex22.pdf


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Proximity Sensors


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Proximity Sensors

Emits an electromagnetic beam(Infrared, for instance), and looks for

changes is field of the return signal.

Types: Phototransistor

SHARP sensors

TSOP Ultrasonic Range finders


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Proximity Sensors

Uses Obstacle detection

Touch switch

Vibration measurements in turbinesAnti aircraft warfare

Automatic car parking systems

http://bildr.org/2011/03/various-proximity-sensors-arduino/
http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/http://bildr.org/2011/03/various-proximity-sensors-arduino/


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Microphone

Convert audible sound into voltagesignals.

Uses:

Microphones

Pick-ups

Acoustic projects

http://negativeacknowledge.com/2008/06/final-lightbar-controller/
http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/http://negativeacknowledge.com/2008/06/final-lightbar-controller/


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Non Invasive Current Sensor

Also known as Split Core CurrentTransformer, it can be clamped

around a wire to know the amount of

current flowing through it. http://openenergymonitor.org/emon/no

de/58
http://openenergymonitor.org/emon/node/58http://openenergymonitor.org/emon/node/58http://openenergymonitor.org/emon/node/58http://openenergymonitor.org/emon/node/58


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The End

Hope this session was informative andhelps in deciding the kind of sensor

you need for your projects.

You can refer to the links for moreinformation about each sensor and

contact mentors for further

information.All the best for ITSP 2012.

Advance Sensor

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