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• 传感器趣谈（It’s the Sensors, Stupid）　2008-11-22 16:01
  Your design is only as good as its sensors. With the latest sensors incorporating smarter silicon， alternative energies， and wireless technologies， the possibilities for your next system are limitless. This month， Tom shows you some of the interesting sensors he discovered at the 2008 Sensors Expo & Conference. I hope you‘ll forgive the headline. Consider it a last hurrah as the seemingly perpetual political season finally totters to an end. Posturing and pandering the headline may be，...
  

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• 浅析非接触式遥感（A Look at Noncontact Sensing）　2008-11-20 13:32
  Jeff has covered optical encoders in previous columns. As you know， while they work well in some projects， they can be expensive. This month， Jeff describes an alternative based on magnetics. A noncontact rotary encoder may be the perfect fit for your next design. There is something comforting about knowing you have control over your destiny. When the automobile and airplane were first manufactured， all of their controls were mechanical. Failure of the controls on the ground was typically an...
  

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• C结构给我们带来了什么（What Can C Structures Do for You?）　2008-11-17 22:26
  This month， George gets back to work examining the C language. Follow along as he explores the use of C structures in a real-world application. Well， I hope you enjoyed the diversion of my last two articles on solar living. I‘ll now be dividing my time between the East Coast and the Southwest. Of course， I'll update everyone on the workings of my solar power system. But now it‘s time to get back to work and earn some money for the next big project. This month， I would like to explore the u...
  

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• 气象监测电路(Weather-Monitoring Circuitry)　2008-11-16 11:30
  A Design for Indoor-Outdoor Use Brian‘s indoor-outdoor weather monitor project is an exercise in precision circuit design and accurate mathematical computations. The electronic system-which features relative humidity and barometric pressure sensors-was designed around an Atmel Butterfly evaluation module incorporated in a decorative wall mount. Like many people who make their living in electronics， I like to build electronic items for my home. However，almost any consumer gadget you can imagin...
  

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• 低成本带USB的移动系列（Low-Cost Serial-to-USB Migration）　2008-11-13 12:12
  If you are unable to access your old data because you don‘t have the right controller， this group of designers may have the solution for you.Their design enables projects without serial or USB ports to transfer data to a USB device. We are like kids in a candy shop when it comes to new tools. There is always a better and more expensive tool that we want. When we were children， our parents determined if the cost of the new tool was justified. Now， hopefully， we know better and are a bit more...
  

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• 时间服务器设计(Time Server Design)　2008-11-09 19:20
  Synchronize with the WWVB Time Code Signal Coordinate your Ethernet applications with Steven‘s Time Server. The system keeps a master time and date clock that is synchronized to the U.S. WWVB time code signal. It connects to an Ethernet network and sends time and date information according to the SNTP， DAYTIME， and TIME protocols. Now， no matter their locations， your devices can connect to the system，request the time and date， and synchronize their local clocks. Back in the 1980s， charac...
  

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• 数字Stompbox(Digital Stompboxing)　2008-11-04 21:38
  An Easy-to-Use Digital Signal Processing Platform Are you ready to venture into the world of digital signal processing effects？ This article is the perfect introduction. Kit describes a high-quality DSP platform and presents sample code. Almost every electric guitar player，from Jimmy Page to your next-door neighbor， uses an effects processor on his guitar. While there are a staggering number of effects used by guitarists and a nearly infinite number of ways to tweak them， a guitarist‘s tone...
  

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• 嵌入式原因及影响（Embedded Cause and Effect）　2008-11-01 19:54
  A Lighting System That Responds to Audio Stimuli With a Luminary Micro LM3S828， this group of designers built an interactive coffee table that responds to audio stimuli and produces flashy visual effects. The design-which features 96 tricolor LEDs， five custom circuit boards， and four electret microphones-can generate a single color display or exciting lighting effects. Our Shock-N-Awe table is capable of responding to audio stimuli by producing visuals that will， as we like to say in a worl...
  

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• 辐射检测（Radiation Detection）　2008-10-23 19:45
  Digital and Analog Pulse Measurement Pete‘s innovative data acquisition system measures cosmic rays， natural background radiation， and emissions from radioactive objects captured from a scintillation probe and a Geiger tube. The compact system controls data acquisition processors， gathers the collected data， and formats the data for display. As a teenage electronics geek in the 1970s， I entered the regional science fair several times. My first project converted a TV set into a crude oscill...
  

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