What is an Acoustic Transducer

I don’t know how you came here as you read it on social media, twitter, facebook, google +, stumble upon or anywhere else. thankyou for coming and I hope you take pleasure in reading this as much as I did.
An acoustic transducer is an electrical device that coverts sound wave vibrations into mechanical or electrical energy. They have various practical applications, including sound recording and sound playback. A specialized model, called an ultrasonic acoustic transducer, can be used to measure distance to, as well as the mass of, an object.

Common types of acoustic transducers used in sound recording include microphones, earphones, and guitar pickups. These create electrical energy when moving parts inside the transducer, such as electrical plates or ribbons, are exposed to sound vibrations. The electrical energy produced inside the transducer is sent first to an amplifier.

The amplifier then sends this energy to its final destination, usually a loudspeaker or recording device. The loudspeaker reproduces the sound at a level that the human ear can hear. A recording device will retain the electrical signal information. The recorder will send the stored signal to a loudspeaker during playback.

An ultrasonic acoustic transducer can be used to measure distance or the mass of an object. The most common type is the piezoelectric acoustic transducer. These include a piezoelectric ceramic element that creates and distributes ultrasonic sound waves.

Sound waves travel to an object from a piezoelectric transducer through material called a couplant. The couplant is usually water. Sound waves bounce off the object and return to the transducer in the form of an echo. The time it takes for these echoes to return to the transducer is used to calculate the distance to the object.

Underwater sound navigation and ranging (SONAR) is a common use of an ultrasonic acoustic transducer. SONAR uses directional beams of sound waves. This enables the SONAR operator to determine the direction and distance to an object.

SONAR systems can be active or passive. An active system sends out sound waves and listens for echoes. A passive system listens for noises made by ships, fish, and landmasses.

An electromagnetic acoustic transducer (EMAT) is another form of ultrasonic transducer. Instead of a ceramic element, an electro magnet is the main component of an EMAT. This is a type of non-contact, or non-destructive transducer. Unlike piezoelectric transducers, EMATs do not need a couplant to carry sound waves. Instead, two electromagnetic fields are generated to disburse ultrasonic waves.

EMATs can easily be used almost anywhere since no liquid is needed. For example, EMATs can be used to check for flaws in underground pipes. A downside to EMATs, compared to piezoelectric transducers, is that EMATs create weaker sound fields.

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T3 Gadget Awards 2013: HTC One beats off Apple and Samsung to win three gongs

earpieceWhen we found this article we were so excited, having sought for over a year for this, discovering it on this blog was an exciting time for yours truly.

The HTC One has triumphed at tonight’s T3 Gadget Awards, picking up three awards – T3 Design Award, Phone of the Year and the coveted Gadget of the Year.

HTC One beat both the Apple iPhone 5 and the Samsung Galaxy S4 in the Phone of the Year category, breaking up the recent dominance that both tech giants have had in the smartphone market.
Other big winners on the night were Apple for Computer and Tablet of the Year, and Sony for Digital Camera and TV of the Year.

Two of the UK’s most innovative and forward thinking pioneers in technology – Michael Acton Smith, founder and Chief Executive of Mind Candy, and Chris Anderson, curator of TED – received accolades for their contribution to the world of technology.

Michael Acton Smith is one of the foremost drivers of the UK tech industry. He is the creator of Moshi Monsters, which has over 80 million users in 150 countries, giving many children their first experience of using technology and social networking.
TED curator Chris Anderson won the inaugural T3 Tech Legend award, given to those whose impact on the technology world has a significant and positive effect.
Originally a journalist specialising in computing, he established Future – the international media business and owner of T3 – in 1985 with a single magazine (Amstrad Action).

Anderson went on to acquire TED through his non-profit Sapling Foundation. TED is a non-profit organisation devoted to ideas worth spreading.
It brings together the worlds of Technology, Entertainment and Design and the TED Conferences give the world’s most fascinating thinkers the challenge to give the talk of their lives in 18 minutes.
Chris Anderson, curator of TED
On receiving the award, Anderson says: ”I’m surprised, delighted and honoured by this news.
“T3 has long been one of my favorite magazines and I’m tickled pink they would do this ? even if the truth is that the award should go to the large numbers of people around the world who have collectively taken TED from being a small conference to a broader celebration of transformative technologies and ideas.”

Kieran Alger, T3 Editor-In-Chief, says: “This year’s Awards have been the hardest fought yet. Every single winning product is truly an outstanding example of innovation and design.
“Alongside the killer products of the past 12 months we’re also thrilled to have honoured two of Britain’s finest tech innovators.
“It’s fantastic to be able to acknowledge the truly staggering success of two visionary entrepreneurs who have influenced the way we work and play on a global scale.
“They’re both hugely deserving recipients of these prestigious T3 Awards and an inspiration to anyone striving in the technology space.”

Winners of the T3 Gadget Awards:Innovation of the Year Google Glass
Computer of the Year Apple Mac Book Air 11 Inch
Digital Camera of the Year Sony Nex-6
Entertainment Gadget of the Year Sky + HD 2TB
Digital Media Service of the Year Netflix
Car of the Year Audi A8
Headphones of the Year Sennheiser CX890i
Fitness Gadget of the Year Nike Plus Training Trainer
Tech Personality of the Year Jason Bradbury
TV of the Yea r Sony Bravia KD-65X9005A
Tablet of the Year Apple iPad Mini
T3 Design Award HTC One

Tech Life Product of the Year Gopro HD Hero 3
App of the Year Xbox Smartglass
Tech Moment of the Year Felix Baumgartner
Phone of the Year HTC One
Outstanding Contribution to Technology Michael Acton Smith
Tech Brand of the Year Samsung
T3 Tech Legend Chris Anderson
Gadget of the Year HTC One

Other ways to charge your smart phone, Pee as you go

headset. earphonesFor years people have been telling me that relations, love and happiness are the crucial things in life…At present I realise that I can take or leave all that so long as We have this technology in the world.

Scientists functioning at the University West of England (UWE) in Bristol, UK, have figured out a way to power a cell phone with Human pee.

The company have been capable of power a Samsung smart phone by placing the liquid through a cascade of microbial fuel cells. With this process, enough power is produced to send text messages, browse the Net and even make a short phone call.

As outlined by the scientists responsible, the next stage is to totally recharge the phone with urine…I assume washing their hands immediately afterwards.

Dr. Ioannis Ieropoulos has labored for ages with microbial energy cells; he’s considered a specialist in harnessing power from unusual sources. The possibe applications of his work are very appealing from an environmental standpoint.

Dr. Ieropoulos said, “We’re very excited as this is a world first, no-one has harnessed energy from urine to try this so it’s an exciting discovery. Using the ultimate waste product as a supply of power to provide electricity is almost as eco as it gets.” Eco-friendly technology is, obviously, the good doctor’s main area of curiosity.

The microbial cells work as a energy converter, they turn the natural substance directly into electricity, via the metabolism of live microbes. The electricity is the by-product of the microorganism’s natural life phase, meaning that as they ‘eat’ the pee, they generate power the energy that powers the phone. Now that is what we call ‘pee as you go’.

Bathroom humour aside, the team have engineered a world first, as nothing as large as the phone battery has ever been charged using this process before.

There are, nowadays, no plans to promote this technology on a huge scale, but maybe someday we can be signing a ‘P’ mobile contract, the trick, as they are saying, shall be pissistance.

PS – I’m sorry about this one. The work and its implications are instead astonishing. All credit to the UWE team. Though, I constantly wanted to do one of those ‘And Finally’ type tales and now I conclusively get to. Please forgive me, one and all.

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