Laser torch based voice transmitter and receiver pdf download

Turn on delay, frequency chirping and temperature effects. This amazing demo shows how you can transmit sound over a laser beam. The phototransistor of the receiver must be accurately oriented towards the laser beam from the torch. Lasar torch based voice transmitter and receiver using this circuit you can communicate with your neighbours wirelessly. Deepak kumar, kundan kumar singh and anand mohan 2 ii. Photo detector at receiver detects the laser light and voice output through loud speaker. Either the transmitter as well as the receiver are assembled around ic lm386, it is powered by a 9v battery. Presentation covers basic design details and requirements. This laser transmitter receiver use a laser torch as the carrier in the circuit. Laser torch based voice transmitter and receiver amplifier. Project report on laser torch based voice transmitter and receiver. Laser transmitter circuit here the circuit diagram of laser transmitter. Introduction to laser torchbased voice transmitter and receiver project.

Scribd is the worlds largest social reading and publishing site. This laser transmitter receiver circuit project can be used as an spy device by mounting the transmitter in one building and the receiver in other building, but. Apply the audio signal at transmitter section, now you can listen the sound from speaker. Laser torchbased voice free download as powerpoint presentation. The laser beam passed from the transmitter laser torch is received by t3 it produces a signal in correspondence to the light signal received from the led transmitter circuit. Voice transmitter and receiver based on laser torch free. As per usual i have the detailed instructions in the video. In this paper we designed the circuit, using that circuit we can communicate with our neighbors wirelessly. Project report laser communication system eceprojects.

The project laser based communication system is designed and fabricated successfully, it works based on the emissions of laser torch and this paper has relevant information the pcb fabrication, implementation of the proposed laser based communication system. Download ppt laser torchbased voice transmitter and receiver group members jishnu sebastian ctaieae014 jithin cheriyan. The laser used in the transmitter is a simply a laser diode that it used in cheap laser pointers and at the receiver, the laser sensor is a photodiode. Laser torch based voice transmitter and receiver embedded systems ieee project topics, robotics base paper, synopsis, abstract, report, source code, full pdf, working details for electronics science electical engineering, diploma, btech, be, mtech and msc college students. Talking about the other half of the project, which is a receiving portion, it comprises a photo sensitive transistor.

Laser voice transmitter circuit engineering projects. Abstractin this paper we designed the circuit, using that circuit we can communicate with our neighbors wirelessly. I assembled both in minutes, and it was strange in a good way to hear music whenever i held the cell in the beam. This paper is designed for voice transmission system based on laser torch. Laser based communication link engineering projects.

The laser needs to be turned off while the transmitter is scanning for the receiver, mainly for safety and power reasons. Using a simple laser pen pointer, a few misc parts, and about 15 minutes, you can make a simple laser communicator that converts a sound source into light that travels across a room, and back into. Design and implementation of mobile laser data transceiver. Easily share your publications and get them in front of issuus. Laser transmitter the main properties of the laser diode transmitter are. This set of two circuits from the basis for a very simple light wave transmitter. The transmitting section mainly comprises with condenser microphone, ic 741, bc 548, bd 9 and laser torch. Laser torch based voice transmitter and receiver k. Transmitter circuit of laser voice transmitter circuit.

Low cost transmission of voice and dtmf signals using. Laser torch based voice communication system slideshare. Pdf study of laser based transmission reception parameters. Transmit voice,music,data via a laser beam with this transmitter and receiver. Objectives a laser communication system by using low cost laser torch and electronic equipment which can be got easily form local electronics and people can construct for their personal use. Govinda1 waseem arshad2 santosh ram3 shashank agrawal4 1scse, university, vellore, india 2, 3, 4, sense, vit university vellore, india. In this work, we summarize development of inp based pic transmitters.

Voice transmitter and receiver based on laser torch. Taotronics official website offers true wireless headphones, noise cancelling headphones, sports headphones, a tv sound bar and pc sound bar, humidifiers, led lamp, therapy lamp, desk lamp as well as floor lamp at factory direct prices. Objectives of project the main aim of this paper is to construct a laser communication system by using low cost laser torch and available electronic equipment which can be got easily form local electronics shop everywhere and people can construct for. A laser beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information voice, data, etc. The lm386 is a power amplifier audio amp chip ic designed for use in low voltage customer applications. Laser communication transmitter receiver schematic. Receiver circuit of laser based communication link. Mims circuit in the late 70s was based on 1960s projects involving solar cells and lamps. Download project report on laser torchbased voice transmitter and. And at receiver circuit 1ordinary ldr instead of npn photo transistor. Laser torch based voice transmitter and receiver ppt presentation covers important information for understanding project over view. Wireless transmitter receiver voice bug fm audio listening device ear spy bug. Laser torchbased voice transmitter and receiver engineering.

Simple circuits using only a handful of cheap parts. Yes, you need an audio input to the transmitter so it can modulate the light. Then the receiver will catch the light and demodulate. Laser transmits audio using frequency modulation make. In transmitter i used 1ordinary laser pointer instead of laser tube and 2 audio transformer of 8. A laser torch can transmit light up to a distance of about 500 metres. Laser torchbased voice transmitter and receiver pdf. Unduh sebagai docx, pdf, txt atau baca online dari scribd. Right from the origin communication system had undergone.

I made some changes to also support a microphonein this tutorial, i will demonstrate how audio music or sound can be transmitted over a light beam generated by a led. Wireless voice communication device design using laser. The inside gain is set to 20, but adding of an external resistor and capacitor between pins 1 and 8 will enlarge the gain to any value from 20 to 200. Laser communication transmitter receiver circuit scheme.

Abstractin this paper we designed the circuit, using that circuit we can communicate with our. Instead of rf signals, light from an ir led is used as. Make sure that distance between transmitter and receiver sections is below 4 meters. Take a note that this circuit is different with av transmitter and av receiver which can be used for sound and video communication, this laser communication circuit only work for audio sound transmission. It is mainly built from a few ics, operational amplifiers and transistors. Introduction to laser torch based voice transmitter and receiver project. Objectives a laser communication system by using low cost laser torch and electronic equipment which can be got easily form local electronics and. Pdf laser torch based voice transmitter and receiver semantic. This laser transmitter receiver circuit use light from a laser torch to transmit an receive signal from a distance up to 500 meters. Laser audio transmitter and receiver instructables. Using this circuit you can communicate with your neighbours wirelessly. Instead of rf signals, light from a laser torch is used as the carrier in the circuit.

Here is a wireless laser communication project for you using lm386 low voltage audio power amplifier circuit. The transmitter modulates power to a laser pointer with audio from a headphone jack. Project report on laser torch based voice transmitter and. Laser communication transmitter and receiver design. Medium between transmitter and receiver depending upon transmission. Pdf laser as a communication medium can provide a good substitute for. If there is any obstruction in the path of the laser beam, no sound will be heard from the receiver. Laser transmitter and receiver units ensure easy, straightforward systems alignment and longterm stable, service free operation, especially in inaccessible. All most all communication system comprised of two parts, the project laser voice transmitter also comprised of two parts i. The receiving section composes with l14f1 photo transistor, lm 386 and loud speaker.

Laser torch based voice transmitter and receiver block diagram. Apply the audio signal at transmitter section, now you can listen the. Low cost transmission of voice and dtmf signals using laser torch mohan. Right from the origin communication system had undergone several changes in terms of its advancement, continuous modernization taking place in every aspect of global communication. Laser communication project circuit schematic using laser. To achieve this, the 9v supply to the opamp is controlled by an npn transistor, which can act as a switch controlled by the microcontroller. Laser torch based voice transmitter and receiver free download as word doc. Since from the very beginning of global communication through radio.