What is a Digital Oscilloscopes??

Oscilloscopes are one of the basic requirement for any individual or firm involved with electronics. An oscilloscope which is also called as scope, is a type of electronic test equipment that allows signal voltages to be viewed, usually as a 2-D graph of one or more electrical potential differences (vertical axis) plotted as a function of time or of some other, voltage (horizontal axis). It is a device with a wide array of uses, but mainly used to measures electrical signals, these signals are then represented in an interpretable

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How to find DC and AC equivalents of BJT amplifier circuit

BJT (Bipolar Junction Transistor) is usually used in transistor circuits for amplification of voltage or current. It operates with both AC and DC voltages. AC signal is the signal which is amplified and the DC voltage is used for biasing of the transistor. Since the the components behave differently for DC and AC signals, therefore different methods are used for the analysis of the circuit. The simplest and most widely used method is using the DC and AC equivalents. In this method the original amplifier circuit is converted to DC and AC equ

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Radio frequency data capacity can be doubled using the new tchnology

In Columbia Engineering a team of researchers has invented a technology—full-duplex radio integrated circuits (ICs)—which can be implemented in nanoscale CMOS (Complementary metal-oxide semiconductor is a  battery-powered memory chip in computers that stores startup information. Computer's basic input/output system (BIOS) uses this information while starting it), to enable simultaneous transmission and reception at the same frequency in a wireless radio. Until now, this considered to be impossible because transmitters and rec

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Artificial skin developed that can be used for camouflaging

A new chameleon like artificial skin was developed that can change its colour depending upon how much force is applied.Engineers from the university of California at Berkeley have created it.This new material is incredibly thin and offers many colours, intriguing possibilities for an entirely new class display tech, colour shifting camouflage, and sensors that can detect otherwise imperceptible defects in buildings "This is the first time anybody has made a flexible chameleon like skin that can change colour simply by flexing it," said Conn

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All-new Apple's 12" MacBook

Apple took everyone by surprise by revealing a lot more than just Apple Watch details.The new MacBook was part of that surprise, bringing a reinvented MacBook that is thinner, and certainly more minimalistic than the popular MacBook Air. The new MacBook has a 12-inch Retina display (2304x1440) with edge to edge glass and much thinner bezels. Apple claims that it is 24% thinner than the MacBook Air at 13.1mm and weighing in at 2 pounds.Apple also highlighted its success in selling products, saying that while the PC market overall is stagna

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Future missions to Mars may not be a one-way trip

Martian colonists could use an innovative new technique to harvest energy from carbon dioxide thanks to research pioneered at Northumbria and Edinburgh Universities. The technique, has been proven for the first time by researchers at the two universities and the work has been published in the prestigious journal Nature Communications. The research proposes a new kind of engine for producing energy based on the Leidenfrost effect(phenomenon which happens when a liquid comes into near contact with a surface much hotter than its boiling point)

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Great future plans for QR codes

QR(quick response) code are those which are usually in black and white boxes that people scan with their mobile phones to download or to know more about something.The researchers from the  University of Connecticut says that these can even take care of national security. Board of Trustees Distinguished Professor Bahram Javidi said that “An optical code or QR code can be manufactured in such a way that it is very difficult to duplicate,”. “But if you have the right keys, not only can you authenticate the chip, b

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Exams to be given to get into engineering colleges?

In India many exams are conducted every year for engineering aspiring students to get into engineering colleges.The admissions will be completely based on the score you get in the entrance test and the marks obtained in 12th and 10th. NATIONAL LEVEL ENGINEERING ENTRANCE EXAMS  JEE-MAINS(Previously AIEEE) – Standard means of entry to the National Institutes of Technology (NITs) across India with other reputed private as well as government universities including Delhi College of Engineering(DCE) and Netaji Subhas Institute of Technology, University of Delhi (NSIT). BITSAT – Standard means of entry to  BITS Pilani institutes across the country. VITEEE - mode of entry into campuses of VIT

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What's engineering?

When a kid hears the word engineering the first thing that comes to his/her mind would be a person controlling an engine of a train. SOURCE :www.exbury.co.uk                                                                                                              

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