ARLA/CLUSTER FW: Engenharias&Tecnologias, newsletter n.5,
8 de Fevereiro de 2006
Miguel Andrade
ct1etl clix.pt
Sábado, 25 de Fevereiro de 2006 - 22:57:36 WET
-----Mensagem original-----
De: Engenharias Tecnologias [mailto:engtec senaeng.com]
Enviada: quarta-feira, 8 de Fevereiro de 2006 10:56
Para: arla clix.pt
Assunto: Engenharias&Tecnologias, newsletter n.5, 8 de Fevereiro de 2006
Se nco visualizar esta newsletter correctamente, visite
http://engtec.senaeng.com
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Engenharias&Tecnologias
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A publicagco semanal dedicada `s novas tecnologias, elictricas e
electrsnicas
http://engtec.senaeng.com
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Subscrigco gratuita
N: de exemplares entregues na passada semana: 2620
Engenharias&Tecnologias n.5 Copyright 2006, 8 de Fevereiro de 2006
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Esta newsletter pode ser distribuida livremente para fins nco-comerciais.
Para fins comerciais, por favor contacte info senaeng.com.
EDITOR: Antonio Sergio Sena, asena senaeng.com
CONTEZDO:
- Notas do Editor
- Artigos de Interesse
- Novos Componentes
- Eventos
- Ideia de Montagem, circuito experimental
- Emprego!
- Acerca da Engenharias&Tecnologias
Notas do Editor
---------------
"Se nco os podes vencer, junta-te a eles!"... ou melhor, COMPRA-OS!
E eu a pensar que, desde a ultima edigco, nco ia cair nenhuma notmcia que me
fizesse exaltar o espmrito de negscios que ha em mim, mas de pois de ver o
que aconteceu na segunda-feira ao fim do dia, tenho que levantar os bragos e
aplaudir quem passa.
SONAE langa Oferta Pzblica de Aquisigco sobre a PT. Se concretizado, sera o
maior negscio de sempre na histsria de Portugal.
http://dossiers.publico.pt/dossier.asp?idCanal=1647
Quem diria... Depois das eleigues, com o pams mais tranquilo, com a
Telefsnica distraida a olhar para o mercado Britbnico, e com a PT entretida
no mercado internacional, eis que o Eng. Belmiro, de alcunha David o Golias,
se langa nesta estratigia muito bem planeada.
Ha quem diga que se se concretizar o negscio, havera concorrjncia desleal.
Mas, se houver um olhar atento ao que se passa em termos de comunicagues,
facilmente se descobre quem controla, e sempre controlou, o mercado de
comunicagues de rede.
Estou ciente que, apesar de vir a haver uma predominancia forte do grupo
Sonae, nco havera concorrjncia desleal nas varias formas de comunicagues.
Quem sabe se uma jungco TMN-Optimus nco sera salutar para a evolugco mais
rapida das tecnologias por terras lusitanas. A Vodafone que se cuide...
Aqui ficam algumas notmcias deste mesmo tema:
http://online.expresso.clix.pt/1pagina/artigo.asp?id=24757616
http://dossiers.publico.pt/dossier.asp?idCanal=1647
http://dossiers.publico.pt/shownews.asp?id=1247148&idCanal=1647
http://online.expresso.clix.pt/1pagina/artigo.asp?id=24757607
Fico, como sempre, disponivel para receber os vossos comentarios, ou
notmcias que me queiram fazer passar.
Artigos de Interesse
--------------------
# ARISS-EUROPE NEWS BULLETIN
http://www.suitsat.org/
It is absolutely clear that SuitSat-1 is alive. It was successfully turned
on by the ISS crew prior to deploy and the timing, micro-controller
functions and audio appear to be operating nominally.
# Process Variations and Layout Design in IC Design
http://email.wirelessdesignmag.com/cgi-bin7/DM/y/hkfa0FQlnw0DNV0BASr0E4
Process modeling advances allow the designer to assess, analyze and predict
manufacturing behavior of components under other-than-nominal conditions.
# JAPANESE GIANTS COLLABORATE AT 45NM
http://www.electronicstalk.com/news/tos/tos289.html
NEC Electronics, Sony and Toshiba have agreed to jointly develop system LSI
process technologies for the 45nm generation.
# RESEARCH FINDINGS AVAILABLE FREE OF CHARGE
http://www.electronicstalk.com/news/nti/nti118.html
The UK National Physical Laboratory has published a number of new reports,
all of which are available to download free of charge.
# Industrial Solutions Guide
http://sdm3.rm04.net/ctt?kn=29&m=461566&r=MjI1MTIwODU4NwS2&b=0&j=OTg3NzE5MAS
2&mt=1
# The Solution to the Power Consumption Barrier for Handheld Devices: The
Wireless Broadband Signal Processor
http://www.freescale.com/files/wireless_comm/doc/white_paper/WLANWP.pdf
# Blackfin Online Learning & Development (BOLD): New series of online
training modules help shorten development cycle.
http://www.demosondemand.com/clients/analogdevices/001/page/
# Measuring VSWR and Gain in Wireless Systems
http://www.mwjournal.com/default.asp?journalid=1&func=articles&page=0511ms45
&year=2005&month=11&srchexpr=VSWR
# Market Forecast: MP3 and Gaming and DTVOh My!
http://elecp-media.com/lrd21_AAOsywAC4ywB
Nonetheless, in 2005 digital televisions, MP3 players, digital still
cameras, and video game consoles stoodout as hot markets experiencing
exceptional unit growth...
# Advances in cell-phone interconnections
http://elecp-media.com/lrd24_AAOsywAC4ywB
# What is so special about Type N Thermocouples?
http://www.labfacility.co.uk/news/54
# WiMAX relying on Government, says wireless pioneer
http://www.electronicsweekly.com/Articles/Article.aspx?liArticleID=37453
# Zigbee interoperability 'not a problem'
http://www.electronicsweekly.com/Articles/Article.aspx?liArticleID=37443
# Europe's solar opportunity
http://www.electronicsweekly.com/Articles/Article.aspx?liArticleID=37550
# BPL: Fine-tuning or spin-doctoring?
http://email.ednmag.com/cgi-bin2/DM/y/npDF0ILuWZ0HH70ChQf0EH&rid=1973958992
Looks like broadband-over-powerline promoters are getting frustrated with
the "interference" they're receiving from the amateur radio community.
# U.K. study: Cell phones pose no risk of brain cancer
http://mailcube.nmm.de/servlet/ts?id=30492498
A four-year study of brain cancer patients in the U.K. found there is no
increased risk of the illness traceable to the use of mobile phones.
# U.S.-European GPS rivalry heats up
http://mailcube.nmm.de/servlet/ts?id=30492489
The U.S. is raising the bar in its growing rivalry with Europe over global
positioning technology.
# Report: Suppliers overproducing LCD panels
http://mailcube.nmm.de/servlet/ts?id=30492482
The liquid crystal display (LCD) market is expected to face a greater than
10 percent global panel oversupply throughout the year as major Korean and
Taiwanese LCD makers expand capacity, according to South Korea market
research firm Displaybank
Novos Componentes
-----------------
# Digital PMR446 a caminho c/ 16 canais
http://www.ero.dk/documentation/docs/doc98/official/Word/ECCDEC0512.DOC
Foi decidido pela "ELECTRONIC COMMUNICATIONS COMMITTEE" - ECC no passado dia
28 de Outubro de 2005 a autorizagco da introdugco no territsrio europeu (a
excepgco de alguns pamses) do DPMR446 a partir de 1 de Fevereiro de 2006.
O Digital PMR446 (DPMR446) ira permitir aos utilizadores trocar entre si
sms, etc.
Tera 16 canais e ira utilizar a faixa de frequjncias do PMR446 analsgico
(446.000Mhz-446.100Mhz) mais a faixa (446.100Mhz-446.200Mhz).
# CMX7041 Two-Way Radio Processor
http://www.cmlmicro.com/Products/TwoWay/previews/PP7041_1.pdf
http://www.cmlmicro.com/products/datasheets/Docs/cmx7041ds.PDF
The CMX7041 is a full-function, half-duplex, audio, signalling and data
processor IC, suitable for implementation in professional radio (PMR/LMR,
Trunking etc.), leisure radio (GMRS, FRS, PMR446, and MURS), marine VHF,
aviation and amateur radio products.
# CUSTOM BLUETOOTH MODULE ENABLES FABRIC KEYBOARD
http://www.electronicstalk.com/news/ple/ple112.html
Plextek has designed one of the first 1.8V Class 2 Bluetooth modules for
Eleksen for use in its ElekTex fabric keyboard for smart phones and handheld
computers.
# RF MODULE BRINGS WIRELESS STANDARDS TOGETHER
http://www.electronicstalk.com/news/sif/sif171.html
A new module is billed as the world's first complete RF front-end for Wi-Fi
products designed to comply with the IEEE802.11n draft specification.
# Do you need an Ultra Low Power Solution without compromising Precision and
Performance ?
http://sdm3.rm04.net/ctt?kn=23&m=461566&r=MjI1MTIwODU4NwS2&b=0&j=OTg3NzE5MAS
2&mt=1
# Amplifiers Solutions Bulletin, Vol. 6, No. 1
http://www.analog.com/en/content/0,2886,759%5F782%5F91229,00.html
# RF modems include broadcast repeater function
http://www.pbm3.com/trk/ct.aspx?x=32e2.10535.4504815
MaxStream's 9XTend and 9XStream RF product families now incorporate
sophisticated broadcast repeater communication for further improvement in
reliability and range of its products
# Low-power, super-regenerative receiver targets 433-MHz ISM band
http://email.ednmag.com/cgi-bin2/DM/y/npGc0ILuWZ0Dar0ChiT0EF&rid=1973958992
Good for power-miserly battery-powered, shortrange, wireless applications.
# Six-chip LED beats 20W halogen bulb
http://www.electronicsweekly.com/Articles/Article.aspx?liArticleID=37531
# Power Electronics Technology Offers Complete Magazine Archive on DVD
http://www.pbm3.com/trk/ct.aspx?x=32ce.e385.4504815
# New MCU series for embedded systems and motor control applications
http://mailcube.nmm.de/servlet/ts?id=30492512
# USB battery charger IC with integrated charge reduction circuit
http://mailcube.nmm.de/servlet/ts?id=30492476
# Radio modems boast up to 3km range
http://www.electronicstalk.com/rdx/ml/csu/102/5
Celsum Technologies is now offering a range of state-of-the-art radio modems
to allow communications along serial links without the need for a licence
for through-the-air distances of up to 3km, or in some cases, further. The
easy-to-use radio modems are programmable to work on RS232, RS422 or RS485
serial links at data speeds up to 19,200baud, and are available with a range
of antennas and other accessories. They may be used licence-free at
broadcast power outputs up to 0.5W, but,with an appropriate licence, can
broadcast at up to 10W.
Eventos
-------
# HOJE HOJE HOJE #
# A Roadmap for Your Portable Power System Design
Wednesday, February 8, 2006
http://email.wirelessdesignmag.com/cgi-bin7/DM/y/hkfa0FQlnw0DNV08Bh0EN
http://email.e-insite.com/cgi-bin2/DM/y/hpJq0ILuWZ0Opu0ChYn0EB
# PCB West 2006 conference
http://www.pcbwest.com/
# The Power Electronics Technology Exhibition & Conference Announces a Call
for Papers and Speakers
http://www.pbm3.com/trk/ct.aspx?x=32e2.87.4504815
# 3GSM World Congress, Barcelona, Spain
http://www.3gsmworldcongress.com
# RFID World, Dallas, Texas
http://www.rfid-world.com/rfid06/
Ideia de Montagem, circuito experimental
----------------------------------------
@ semelhanga da semana passada, aqui vos apresento mais uma ideia de
projecto, que igualmente serviu de entrada no concurso da Microchip.
Como o concurso i estrangeiro, toda a informagco esta em ingljs. O projecto
i apresentado na versco original.
An electronic fish that helps you catch the real thing!
http://www.senaeng.com/images/nemo.jpg
The Nemo catcher uses the following components to lure fish: PIC10F220, 4017
Decade counter 10 X surface mount leds, A pager motor with off centre
vibration weight, 2N2222 transistor, 1 mercury tilt switch, 2 lithium 3V
batteries.
The device begins working as soon as a state change is detected on the tilt
switch.
Once operational the catcher stays operational for a period of 30 seconds,
after which it puts itself into a sleep mode, unless this period is extended
by further movement eg jigging the fishing line.
The device attracts fish by producing light patterns on its side using the
4017 decade counter.
Both the clock and reset lines of the 4017 are used so that intricate
patterns may be produced.
Additionally the device mimics the death struggles of an injured fish using
the pager motor.
Once every 30 seconds the pager motor is activated for a period of 5
seconds.
The pager motor is driven using a commonly available 2N2222 transistor I
recommend putting a across the motor to protect this transistor from damage
when the motor is switched off.
This whole circuit is built onto a small PC board and powered by two 3V
lithium button cells connected in parallel and placed inside a hollow rubber
fish skeleton that is completely sealed thus protecting the electronics from
water damage.
In case the device is consumed by a large fish or lost on some rocks due to
its low cost it may be rebuilt or replaced easily.
Emprego!
--------
Fagam-me chegar as vagas de emprego para as areas de Engenharia Elictrica
e/ou Electrsnica, que eu farei por as publicar.
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