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Infra Red light ! I'm guessing you also asked the question 'What does IR use to receive data' too.
Basically there is an IR diode in the transmitter, and a detector in the receiver. The amount of IR emitted by the diode varies with voltage, so when the detector receives the pulse, it can 'de-code' what's being sent.
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∙ 12y ago
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How the infrared burglar alarm works?
Transmitting binary ones and zeros via IR (infrared) light is not as complicated as it may appear at first glance. Just as radio stations transmit information using radio waves, infrared devices transmit data using the infrared frequencies of the electromagnetic spectrum. Also, just as you need a compatible device to listen to a radio broadcast, you must have a device capable of understanding and translating incoming infrared signals. All sending and receiving IR devices contain small, dark windows called IR ports. Inside these ports, transceivers (a combination of a receiver and transmitter) send and receive data using the IR frequency. After a device's CPU (central processing unit) sends the binary ones and zeros to the software controlling the IR transmission process, that information is converted into pulses of IR light. The software then forwards the data to the device's transceiver, which transmits the IR signals to another IR port. The receiving device's IR software converts the infrared transmission back into binary digits. IR devices transmit the binary ones and zeros according to a protocol set by the IrDA (Infrared Data Association; http://www.irda.org). For high-data transmissions, such as from a laptop to a printer, both devices must be within a few feet of each other and the IR ports must be within each other's line of site. The data is sent in a 30-degree wide cone from one IR port to another. Depending on the IR software, a pulse of light could represent a digital one, while the absence of a pulse of light could represent a digital zero. High-speed IR devices don't actually transmit data in a serial string of ones and zeros, however. Rather, bits of data are sent in groups to speed up the transmission process. reference:(http://www.smartcomputing.com/articles/archive/r0403/30r03/30r03.pdf?guid=) *note: Search More You Damned Fool!!!
What does IR use to receive data?
An Infra Red detector !
What is the instrumental difference in IR and FTIR?
In FT-IR, an interferometer is used to collect a spectrum. This interferometer has a source, a beam splitter, two mirrors, a laser, and a detector. One part of the beam is transmitted to a moving mirror and the other is reflected to a fixed mirror. In Dispersive-IR, there is also a source and mirrors, but the source energy is sent though a sample and a reference path, through a chopper to moderate energy that goes to the detector, and directed to a diffraction grating. The diffraction grating separates light into separate wavelengths and each wavelength is measured individually.
Why KBr using in IR?
KBr is transparent to IR radiation, most alkali halides are transparent in ir
Use of ir sensor in robot?
The ir sensor is used in robot's as a input signal.what kind of use u want in ur project of ir sensor
Can photoelectric effect be observed using infrared rays?
Yes, but you have to use just the right metal. One that has an ionization level which matches the frequency of IR radiation your are using.
What does ir mean in irreplaceable?
Ir- is an English prefix meaning not. Irreplaceable means something cannot be replaced. Other words using ir- are irrelevant and irregular.
Which object or material reflects infrared rays?
All materials will reflect, absorb and transmit (allow to pass through) electromagnetic radiation. This is called the Transmit/Reflect (T/R) ratio and it will vary for a material based on the wavelength of the incident radiation. IR radiation does not transmit through most materials. It is absorbed/reflected. Metalized Mylar has a small transmit/reflect ratio.
Is there any Flip down monitor in car can be compatible with IR transmit?
There are many in car Flip down monitor with IR transmit in the market. It can make driving more conveniently. You can see many items here in Eonon, different screen size of monitor with IR can be found:http://www.eonon.com/Flip-Down-Monitor-or-DVD-Player.html?utm_source=wiki.answers.com&utm_medium=answer&utm_campaign=answerhttp://www.dvdgpsplayer.com/flip-down-dvd-monitor_c947There sre so many flip down monitor with TV tuner&DVD(MPEG4/DIVX)&IR&FM transmitter+USB,SD/MMC.
What is IR Receiver TSOP1738?
Its a IR receiver with 3 pin GND, +v, Data-Out which inturn should be connected to Decoder to read the inputgenerally used in TV / DVD players
What is the maximum distance reached using IR transmission?
Between 2 standard IR devices it is 1 meter. Between 2 low power IR devices it is 0.3 meter Between a standard and a low power IR device it is 0.2 meter
How do Honda Odyssey headphones work?
Honda Odyssey headphones for models made after the year 2003 work using Infrared (IR) technology. A beam of IR light, like the one that is used in your TV remote, is used to transmit audio signals. This has advantages over Radio Frequency (RF) headphones in sound quality and battery life. I lots my Honda Oddyssey headphones and ended up having to find replacements from http://www.audiovideo2go.com which is the only reason I discovered the difference between IR and RF headphones.
