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  • Photo Sensor Application Note
    The basic circuit of an optical sensor is shown in Figure 2-2.1(a). The anode of the LED is connected to the power line VCC via resistor RE and the cathode is grounded.
  • Using a Digital Potentiometer to Optimize a Precision Single Supply Photo Detect
    Photodiodes bridge the gap between light and electronics. Many times precision applications such as CT scanners, blood analyzers, smoke detectors, position sensors, IR pyrometers and chromatographs utilize the basic transimpedance amplifier circuit that transforms light energy into a usable
  • Case Study - Light Butler: An Integrated Lighting System
    While working on a home lighting project, Alan Butler found a need for a lighting control device that combined a digital timer, motion detector, photo sensor and dimmer in one compact package. Searching the shelves of some large home centers in Alpharetta with no success, he discussed his lighting
  • Sensing Light with a Programmable Gain Amplifier
    Photo sensors bridge the gap between light and electronics. Microchip's Programmable Gain Amplifiers (PGAs) are not well suited for precision applications (such as CT scanners), but they can be effectively used in position photo sensing applications minus the headaches of amplifier stability. When
  • How To Select a Total Hydrocarbon Analyzer For Use in an Industrial Application (.pdf)
    Several different sensor technologies may be used to detect hydrocarbons, including: catalytic; photo-ionization; infra-red; gas chromatography; and flame ionization. Of these possibilities, flame ionization (FID) is considered the best choice for continuously monitoring the total concentration
  • Computer Power User Article - Under Development
    in about one second. The OKAO Sensor s requirements are modest. No additional hardware is needed beyond a camera-equipped device that is capable of capturing images at 320 x 240, and each registered photo requires only 1.5KB of storage. The software will be available for Symbian OS, BREW, embedded Linux
  • Fast Response Optical Sensors Prove Invaluable in Demanding Gaging Applications
    . The MTI-2100 Fotonic Sensor System (Photo 1) consists of a mainframe signal processor/controller which accepts up to two fiber-optic probe plug-in modules. The plug-in modules incorporate a seven-position low-pass filter and a three-position high-pass filter for improved signal to noise ratio
  • Pump Up the Pixels Pump up the pixels
    A new image sensor gives CCDs and CMOS a run for their money. Digital photography is heating up, becoming more popular with consumers and professionals. Falling camera prices, increased pixel counts, and the ability to have a complete, dry photo lab on your desk are making digital photography too

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