Featured Blog Articles
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ENIG vs HASL
Posted May 16, 2012 By Rolte RegmiHASL stands for Hot Air Solder Leveling. ENIG stands for Electroless Nickel Immersion Gold. Both HASL and ENIG are two different types of a surface finish used for plating the Printed Circuit Boards(PCB). HASL is less environment friendly than ENIG. Choosing ENIG over HASL, reduces the use of lead and emission from flux and fusing oil. HASL has a excellent solder-ability and has a good shelf…
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Common Temperature Scales
Posted May 16, 2012 By Andrew CarterThree temperature scales are commonly used in science and industry nowadays. These are the Celsius, Kelvin and Fahrenheit.
Degree Celsius (0C)
The degree Celsius (°C) scale was created by separating the scale of temperature between the freezing and boiling temperatures point of pure water at normal atmospheric conditions or sea level pressure. into 100 equivalent parts. The unit…
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The Mathematical Theory of Waves
Posted May 16, 2012 By Andrew CarterWaves are known to us from the ocean, the study and theory of sound, and other natural phenomenon.. To completely understand waves, there is a need of understanding of its measurements related with their frequency, wavelength, and their vertical size or amplitude.
Though these measurements aid to describe waves, they cannot help out in making predictions about wave behavior. In order to do…
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The Kelvin Temperature Scale
Posted May 16, 2012 By Andrew CarterThe Kelvin Temperature Scale
The Kelvin scale of temperature is the generally used in science, particularly in the physical sciences. The Celsius scale is still used a in many areas of physical science, but the Kelvin that is the major SI(International System) unit for temperature. It is to as Kelvin by using the symbol K.
This temperature scale was planned and deliberated by Lord…
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Drinking Water From a Wind Turbine
Posted May 15, 2012 By Joel BurnsCheck out this week’s episode! It features a new wind turbine that collects moisture and converts it into drinking water through a complex filtration system. What separates this filtration system from the rest is that it does not need an external power source, so they can be implemented in areas that are not near any electric grids or clean water sources.
Also featured on this episode:
*A space…
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Thermometers
Posted May 15, 2012 By Andrew CarterBefore the thermometer was introduced, there was the first and closely related thermoscope, a thermometer without a scale. A thermoscope only displayed the differences in temperatures and it displayed something if it was getting hotter or colder. Some inventors created some version of the of it at the same time. In 1593, Galileo Galilei made up a elementary water thermoscope which allowed…
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What is Silicon Photonics?
Posted May 14, 2012 By Jean-Louis MalingeEver since the invention of the transistor more than 60 years ago, semiconductor chips have used electrons for communications. Each new generation of devices offered more transistors in a smaller area, operating at faster speeds. Today, the semiconductor industry exceeds $250B per year with a single CMOS chip containing as many as a billion or more transistors. These complex circuits are still 100 percent electrical. -
Simple Long Range FM Transmitter with 2 Watt Power and 1-2 KM Range
Posted May 14, 2012 By KALPESH CHHABHAIYAHello friends,
We know that building of Fm transmitter for first time is quite hard and we get confused about the components, parts, design, pcb, transmission frequency, inductor value and making of inductor , polarity of the capacitor and many things.Here i am going to explain you a building of simple fm transmitter using a two transistor . I will try to explain as possible as i…
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The Nature of Sound
Posted May 14, 2012 By Andrew CarterSound is part of our everyday sensory feelings. We rarely take the time to consider the characteristics and behaviors of sound and the reasons by which sounds are formed, propagated, and detected. Sound is a wave that is created by vibrating objects and propagated through a medium from one location to another. It is defined as a longitudinal and mechanical wave. It can travel over any medium but…
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Photography Equipment Using Turntable
Posted May 10, 2012 By Circuit ProjectsThe device is known as Turn Photo which allows capturing several photos of the same product from different angles by turning it in 360 degrees.
The device is built on the PIC16F628A microcontroller along with one stepper motor, 2 opto-couplers, ULN2803A IC transistor array and USB-Serial PL2303 converter IC. The motor is powered independently by 12V power source while the electronics…
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RF isn’t Black Magic
Posted May 10, 2012 By Eric HollandMost people in the Embedded Electronics world view discrete RF Design as “Black Magic”. I would agree RF is complicated, but it isn’t Black Magic. The magic is that when you are dealing with signals in the RF frequency range the “small things” matter; my little experiment below proved that to me yet again!
I was inspired by “VK2ZAY’s LC Test Oscillator…
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Fisheye IC Lens Correction Made Simple
Posted May 09, 2012 By Tamara SchmitzFisheye images, spanning a field of view of up to 180 degrees, can offer fascinating and exotic qualities. They offer a density of visual information that is otherwise inaccessible to the naked eye or by the use of regular ‘pinhole’ type cameras, even when fitted with a wide-angle lens. -
Renesas Micom Car Rally Kit delivery
Posted May 09, 2012 By Gary Crowell Jr(Rally Competition excitement!)
It’s like Christmas at work!
Today is a special day. It’s the beginning of a new project with the Renesas Micom Car Rally Kit! This is a line following self propelled robot car that students can compete with and learn a great deal about microcontrollers, coding, and electronic technology all in one fun, engaging project….
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The Speed of a Wave on a String
Posted May 09, 2012 By Andrew CarterA vibrating string creates a sound whose frequency generally is uniform. Therefore, frequency produced a sound in aregular note. The speed of a wave pulse moving along a string or wire is computed by its mass per unit length and its tension. Mass refer as a measure of the resistance of an object to the change of its speed. Tension, on the other hand, is a force related to the elongation of an…
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Noise-Cancelling Hearing Aids
Posted May 08, 2012 By Joel BurnsThis week’s episode highlights a new type of hearing aid that cancels out interfering background noise for people with hearing aids. The device amplifies frequencies commonly used for conversation and the user can “re-tune” by cupping his or her ear if the frequencies change wherever you may be.
Other cool features from this week’s episode:
- A brain implant that allows previously paralyzed…
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Advanced Thermal Control for Ensuring LED Lifetime
Posted May 07, 2012 By Anthony CatalanoWhite light emitting LEDs have proven to be a disruptive technology challenging all older forms of light generation. The potential for: 1) very long life (>35,000 hrs), 2) extremely high efficacy (theoretically ~250 Lumens/Watt) and 3) low temperature operation has taken the lighting market by storm. -
Optimizing Your Next Temperature Measurement Configuration - Part II
Posted May 06, 2012 By Robert GreenThermocouples are far and away the most widely used type of temperature sensor because they are both rugged and relatively inexpensive. They operate based on the thermoelectric or Seebeck effect (named after physicist Thomas Seebeck). When two wires made up of dissimilar metals are joined together... -
EOS Exposure of Components in Soldering Process
Posted May 02, 2012 By Vladimir KrazSoldering irons, solder extractors and other equipment that comes in direct electrical contact with sensitive components can inject significant energy into these devices. Specifically, metal-to-metal contact between the tip of the soldering iron and pins of the components is a gateway for high current that can cause significant device damage. -
Component Lists Stored in the Cloud
Posted May 02, 2012 By Joel BurnsThis new technology developed by Arena Solutions allows you to compile a BOM that can be accessed through cloud storage. The new app is called PartsList and it is absolutely free. This easy-to-use application allows you to simply add component parts to your project list with clean and simple interface. This app is perfect for a hobbyist or an engineer who is looking to keep the costs for projects…
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Do-It-Yourself Flying Saucer
Posted May 01, 2012 By Circuit ProjectsMaking a flying saucer sounds like one very interesting idea. And it will also look good in your lawn. See how to make your own one.
A couple of plastic trays is what is needed to make the body. Two trays are attached to one another by means of bolts, nuts, metal washers and rubber washers. The outer edges have to be bordered by weather stripping. A 50lb fishing line holds the…
