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Sense Stage Workshop » infrared

Archive

Posts Tagged ‘infrared’

Camera motion tracking

May 10th, 2009

There will be an infrared camera looking at part of the stage from the top. Using the software MotionTrackOSC, we can do blob-tracking, resulting in a number of tracked areas, as movement occurs in them.
The camera feed will also be available for use with other software.

Author: marije Categories: Sensors Tags: , ,

Infrared motion detector

May 8th, 2009

From Wikipedia:

A Passive InfraRed sensor (PIR sensor) is an electronic device that measures infrared (IR) light radiating from objects in its field of view. PIR sensors are often used in the construction of PIR-based motion detectors (see below). Apparent motion is detected when an infrared source with one temperature, such as a human, passes in front of an infrared source with another temperature, such as a wall.
All objects emit what is known as black body radiation. It is usually infrared radiation that is invisible to the human eye but can be detected by electronic devices designed for such a purpose. The term passive in this instance means that the PIR device does not emit an infrared beam but merely passively accepts incoming infrared radiation.

Amount in workshop: 4 (as part of the “environmental unit”).
How PIR Motion Sensors Work
datasheet
schematic

Author: marije Categories: Sensors Tags: , ,

Infrared distance sensor

May 8th, 2009

The infrared distance sensor, sends out an infrared pulse and measures how long it takes for a reflection to get back to the device. The longer this takes, the further away the sensor is from an object.

From the datasheet:

“GP2Y0A02YK0F is a distance measuring sensor unit, composed of an integrated combination of PSD (position sensitive detector) , IRED (infrared emitting diode) and signal processing circuit.
The variety of the reflectivity of the object, the environmental temperature and the operating duration are not influenced easily to the distance detection because of adopting the triangulation method.
This device outputs the voltage corresponding to the detection distance. So this sensor can also be used as a proximity sensor.”

Amount in the workshop: 2
datasheet

Author: marije Categories: Sensors Tags: ,