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16 Oct Download Project Report on Laser Torch-Based Voice Transmitter and Receiver. Right from the origin communication system had undergone. 27 Jan INTRODUCTION Our final year project is based on the concept of laser (Light Photo detector at receiver detects the laser light and voice output through loud speaker. PROJECT PICTURES Transmitter RECEIVER; AbstractIn this paper we designed the circuit, using that circuit we can communicate with our neighbors wirelessly. Instead of RF signals, light from an IR LED.

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The phototransistor of the receiver must be accurately oriented towards the laser beam from the torch. VR2 is a volume control for IC2.

Project Report on Laser Torch-Based Voice Transmitter and Receiver | Projects

The proposed circuit basically had the transmitter circuit and this block consists of transistor amplifier BC coupled with condenser microphone, and an audio modulator BD Essentially, when the beam gets interrupted by a person, lroject or object, the resistance of a photodiode will increase and an alarm will be activated.

Voice Transmitter And Receiver Project.

Then the receiver will catch the light and demodulate it and drive the speaker. But I wish to know more about its design and concepts.

The circuit has an adjustable diode threshold current and an adjustable modulation frequency. Teceiver can download project report and seminar report from below link for reference. Now I needed to be able to detect this reflected light. Laser torch based voice transmitter and receiver project?

The phototransistor of the receiver must be accurately oriented towards. Please enter your name here. It has a few components, uses LM and is easy to build. Keep the 9V battery inside the cabinet. If there is any obstruction in the path of the beam, no sound will be heard from the receiver.


Is laser torch based voice transmission an embedded or vlsi? Fix switch S2 on the front panel and the speaker to the rear side. I needed a way to locate three targets from some distance, tocrh a laser pointer seemed to be tailored for the job. The laser and the receiver can be fitted in same box, sharing a common power supply. In the transmitter cabinet, fix two terminals for connecting the audio signal.

Laser torch based voice transmitter and receiver project?

You do not have the permission to view this presentation. Tester for Modulated Laser Diode This circuit can either be used rpeort test laser diodes or as a general purpose modulated light source. In place of the laser diode, you can also use a laser pointer.

We have started accepting articles by online means directly through website. December 31, The transmitter circuit Fig. Browse the Latest Snapshot. Claim or contact us about this bzsed.

This electronic media starting from satellite communications had invented new dimensions in the field of wireless communication, research in these areas created a new concept of communication by means of lasers, no one tgansmitter expected this kind of development forch communication strategies and its always a raising question that how we communicate by implementing lasers, in our project we repoet a detailed answer about how we communicate with others by using laser technology.

Thermodynamics problem, please give explanation on how to solve? Industrial robotics ppt is useful for electronics and computer science students for understanding important features of project.

Raspberry Pi is a low-cost, high-performance, credit-card-sized computer for learning, solving problems and having fun.

The circuit consists of a transmitter and a receiver. Reciever main operation of our project is based on the two sections one is laser transmitter section and the other laser receiver section the combination of these two sections constitutes the entire circuit block. The mic is the audio input. Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, show more.


Are you sure that you want to delete this answer? What are the 10 ohm resistors for that just lead to the ground with a capacitor? A W electric cooker is to recwiver used on a V mains circuit.


Please enter your comment! Smaller transformers may be found which output 8kV at 5mA and are better suited to capacitor charging applications. Trabsmitter is not clear. This signal is fed to input pin 3 of IC2 through coupling capacitor C5 so that the Transmither value from the solar panel can be eliminated.

However, the 3-volt laser torch after removal of its battery can be directly connected to the circuit—with the body of the torch connected to laser torch based voice transmitter and receiver full report emitter of Torc and the spring-loaded lead protruding laser torch based voice transmitter and receiver baser report inside the torch to circuit ground.

EFY was launched inand is counted amongst the leading publications in the fields of electronics and technology—across the globe. The voltage divider network formed by R2, R3 and VR3 keeps the voltage as well as the current for the laser diode in the safe region.