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THE ECE HERALD the Official ECE Newsletter Issue Date: 5Th November, 2019 LASER TECHNOLOGY Illuminator Lasers for Target Tracking

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THE ECE HERALD the Official ECE Newsletter Issue Date: 5Th November, 2019 LASER TECHNOLOGY Illuminator Lasers for Target Tracking NIT ANDHRA PRADESH VOLUME 2 ISSUE 4 THE ECE HERALD The Official ECE Newsletter Issue date: 5th November, 2019 LASER TECHNOLOGY Illuminator Lasers for target tracking. It can destroy targets up to 600 km away. 4. Advanced Tactical Laser: ATL program is a US military program to mount a -Hariom Singh (611834) When lasers were first invented, they were called a solution looking for a high energy laser weapon on an aircraft. Used against ground targets in urban or problem. Everyone thought they were as cool as Bose-Einstein condensate, but other areas where minimizing collateral damage is important. The laser will be a no one quite knew what to do with these devices that could produce a highly 100 kilowatt-class chemical oxygen-iodine laser. On June 18, 2009, the ATL focused beam of light. Today, lasers have become one of the world's most was successfully fired in flight for the first time. important technologies, used in industries ranging from information technology In the Medical field to telecommunications, medicine, consumer electronics, law enforcement, 1. Laser Surgery: Lasers are used in surgery, particularly in eye surgery. Laser military equipment, entertainment, and manufacturing. A laser is a device that in-situ keratomileusis is a popular surgery used to correct vision in people who emits light through a process of optical amplification based on the stimulated are nearsighted, farsighted, or have astigmatism. All laser vision correction emission of electromagnetic radiation. It emits the light in one direction. The surgeries work by reshaping the cornea. first laser was built in 1960 by Theodore H. Maiman at Hughes Research 2. Laser Lithotripsy: Laser lithotripsy is a procedure to treat kidney stones. It Laboratories, based on theoretical work by Charles Hard Townes and Arthur uses a laser to break the stones into very small pieces. These pieces can be Leonard Schawlow. removed during the procedure. Or they may pass out of the body in the urine. It is widely used in several fields. Some examples of laser are laser cutting, 3. Cosmetic Skin Treatments: Cosmetic skin treatments such as acne treatment, lithography, laser printer, barcode scanner, DNA sequencing instruments, fiber cellulite and striae reduction, and hair removal can be done by using lasers. optics, laser surgery, etc. Laser Skin Resurfacing removes skin layer by layer with precision. The new skin cells that form during healing give the skin a tighter, younger-looking surface. 4. Cancer Treatment: Lasers are used to treat cancer by shrinking or destroying tumors or precancerous growths. They are most commonly used to treat superficial cancers that are on the surface of the body or the lining of internal organs. They are used to treat basal cell skin cancer and the very early stages of others like cervical, penile, vaginal, vulvar, and non-small cell lung cancer. For Communication 1. Optical Communication: Optical communication has been one of the driving forces in developing laser diode technology. Today, diode lasers are the key components of any broadband communication systems. They are employed as a high-speed transmitter in digital and analog fiber optic networks, to pump lasers in Erbium-doped amplifiers (EDFAs), or as high-power pulsed lasers in test and measurement field. 2. Laser Satellite Communication: TNO is working on this new optical communication technology that uses satellites to send information to Earth. This happens via invisible light signals and enables much faster data transfers than APPLICATIONS OF LASERS using the radio frequencies currently employed for communication everywhere. For Military Purposes Transmit audio directly into a person’s ear; 1. Laser Designator: It is a low power laser pointer used to indicate a target for Scientists have figured out how to use a laser to transmit audio, ranging from precision-guided munitions. When a target is marked by a designator, the beam music to speech, to a person across a room without any receiver equipment — a is invisible and does not shine continuously. Instead, a series of coded pulses of potential breakthrough for the future of audio and communication. The MIT laser light are fired. Laser designators may be mounted on aircraft, ground team describes how it developed two different methods to transmit tones, music, vehicles, or handheld. and recorded speech via a laser. Both techniques take advantage of the 2. Zeus Laser Weapon: The HLONS (HMMWV Laser Ordnance Neutralization photoacoustic effect, which is the formation of sound waves as the result of a System), is a solid-state laser weapon used by the U.S. military to neutralize material absorbing light. In the case of the MIT research, that material was water surface land mines and unexploded ordnance. It can engage targets from 25 to vapor in the air. For one of their methods, the researchers “swept” a laser beam 300 meters away. at the speed of sound, changing the length of the sweeps to encode different 3. Boeing Yal-1: Primarily designed as a missile defense system to destroy audible pitches. This technique allowed them to transmit sound to a person more tactical ballistic missiles. The Boeing YAL-1 weapons system is a megawatt- than 8.2 feet away at a volume of 60 decibels. For the other method, they class chemical oxygen-iodine laser (COIL) mounted inside a modified Boeing encoded an audio message by adjusting a laser beam’s power. They said this 747-400F. Besides the COIL, the system also includes two kilowatt-class Target technique produced a quieter but clearer result. PERMANENT CAMPUS INAUGURAL CEREMONY SMART ENGINEER WORKSHOP: - Sushil Kumar (611772) - Akula Revanth (611704) 25th October 2019, Tadepalligudem: The inaugural ceremony of “Dokka On October 19th, 2019, ECEA and EEEA jointly hosted 1st session (total Seethamma” canteen in the permanent campus took place in a grand way. of 4 sessions) of IoT (internet of things) workshop entitled “SMART The foundation stone was laid for the lab-2 complex by the Andhra Pradesh ENGINEER” in the new block. The purpose of the workshop is to give cabinet ministers along with the Director of NIT AP, C. Surya Prakash Rao hands-on experience of using Arduino, Node MCU, Raspberry pi. There is after the canteen inauguration. The Andhra Pradesh state ministers a huge response to the event, around 40 teams have attended the workshop, Adimulapu Suresh, Cherukuvada Rangaraju, Thaneti Vanitha, Alla Kali each team has 3-5 members a total of 190 members. The participants are Krishna Srinivas, local MLA Kottu Satyanarayana, MP Raghuramakrishnam divided into two batches for effectiveness. This workshop is collectively Raju, District Collector Revu Muthyala Raju made the ceremony successful organized by the students of 3rd year from ECE and EEE. with their presence. All the attendees of the ceremony participated in the The workshop started at 9 AM with the introduction of IoT and its plantation program near the workshop complex. Shortly, the felicitation applications. They explained the scope of IoT in upcoming days and need to ceremony for the guests was arranged in the workshop complex. Director, learn it. They explained the hardware and coding of the open-source CSP Rao explained the development and progress of the NIT in the past four microcontroller board, Arduino Uno. Participants enjoyed a lot by coding years from its establishment. Tadepalligudem MLA, Satyanarayana said that for different patterns of LED’s. They explained the working and coding for he will give his full support for the institute's development. The education a few sensors. The participants showed great interest and organizers are minister, Suresh highlighted the unemployment issue, he also advised happy with the response they have got. Organizers said that they are eagerly students to develop the skills to meet the present-day industrial requirement. waiting to conduct the next session which is going to be on 2nd November. PAGE 1 GATE PROBLEMS PETRICHOR 2K19 1. The block diagram of a feedback control system is shown in the figure. The overall - Venkateswara Rao (611881) closed-loop gain G of the system is _________ . - B. Saiteja (611810) 2. Let x(t) be the input to a linear, time-invariant system. The required output is 4x(t-2). The transfer function of the system should be ____? **Solutions to the previous issue questions are included in the e-copy EDITOR’S NOTE Hello readers!! We are back with the fourth issue, volume 2 of The ECE Herald. We congratulate S. Kartheek for joining the editors’ team of this newsletter. To make your reading interesting and to give some more FRESHER'S DAY!!! It may be of two words, but its experience cannot be relatable stuff we have tried our best. Firstly, there is a short note described even in a thesis. Every student eagerly waits for this day and bring regarding the inaugural of the canteen which wonderfully took place. A his/her hidden talent and earns their fame. On October 30, 2019 (Wednesday) we fascinating article about laser technology is put forward. An article have made a mark in our juniors' minds by organizing the fresher's day. It was a regarding the workshop being held by 3rd years of ECE and EEE wonderful experience for both the juniors and for us. 'PETRICHOR 2K19' was students, which is a grand success, is drafted. Secondly, to inspire us we the title which is the pleasant smell after a rain. The title syncs very well with the have an article about the real-life iron man. An article regarding the event. The theme was 'HARRY POTTER' which went in hand with Halloween fun that took place in the Fresher's Party is penned in the newsletter. that next day. Thinking out of the box to know how the gaming world works, a brief About the events, we had many events by which happiness was etched on our description of augmented reality is drafted.
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