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  • Computer Controlled Variable Attenuator for Lasers (.pdf)
    This application note describes a closed loop computer controlled variable attenuator (figure 1) for the control of output power of a laser. It is based on the combination of a 1/2 wave-plate and polarizer. The algorithm used to control power operates in a closed loop with Proportional Integral
  • Computer Controlled Variable Attenuator for Tunable Lasers
    This application note describes a closed loop, computer-controlled, variable attenuator (Figure 1) for the control of output power from a tunable laser. It is based on the combination of a 1/2 wave-plate and a polarizer. The algorithm used to control power operates in a closed loop
  • Variable-Reluctance Sensors
    controls, and antilock-braking systems. Variable-reluctance (VR) sensors work well for these automotive applications because
  • Replacing a Mechanical Adjustable Speed Drive with a Variable Speed Drive
    Retrofitting an application using a mechanical adjustable speed drive such as a Reeves Motodrive® to an AC or DC variable speed drive can be done successfully if all the details are understood beforehand. First, let's take a look at what a Motodrive really looks like conceptually. A constant speed
  • Variable Speed Drives and Centrifuges for Zone 1 Hazardous Areas (.pdf)
    Using a variable frequency drive (VFD) provides a standard solution to get the top performance of machines in many applications in the process industry. Today, there is no solution to install frequency converters inside the hazardous area. This limits the functionality and the ability for a compact
  • Cable Solutions for Servo and Variable Frequency Drives
    for Servo and Variable Frequency Drives (VFD). Electric drive systems with continuous torque and speed control are widespread today. They allow an optimal adjustment of the drive with respect to the application. Standard drive. systems consist of three-phase, alternating-current, asynchronous motors
  • Development of a New High Performance Material to Improve Vehicle Efficiency by Reducing Frictional and Parasitic Energy Losses in Transmission Components (.pdf)
    . This field survey encompassed over 50 automatic. and continuously variable transmission designs produced over a 5 year period. Field Survey of Automatic Transmission Seal Ring P x V Conditions. 6. 5. DuPontTM VESPEL® SP. ) ). a a. Experimental PV. pP. limits by lab test. (M (M 4. r. ere. Actual PV
  • 2002 Audi A4 1.8T CVT
    I wanted to test the continuously variable transmission (CVT) Just in case you can't decipher Audi's code for naming vehicles, the car I tested was an A4 with the 1.8-liter turbocharged engine and continuously variable transmission. It's a great little sedan, and I use the term a little bit loosely
  • Two modes are better than one for heavy-duty hybrids
    , " in this context, describes the configuration of transmission gearing for optimal efficiency at varying speeds and power levels. Unlike conventional continuously variable transmissions, the 2-Mode full hybrid 's electrically controlled system uses no mechanical belts or bands. Shifts between modes are synchronous
  • Better metals for modern cars
    , with special electrical or magnetic properties. Additionally, advances such as camless valve trains, and continuously variable-transmissions will demand much of alloys. Steel makers continue to keep pace with a lot of new ideas. Stainless steels are about 50% stronger than lowcarbon steels. Their high

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  • Automotive Transmissions
    This has also lead to a massive diversification among transmission designs, with individual solutions and competing concepts: manual transmissions (MT), automated manual transmissions (AMT), dual clutch transmissions (DCT), conventional automatic transmissions (AT), continuously variable transmissions (CVT) and hybrid drives.
  • Design Practices: Passenger Car Automatic Transmissions
    Electric and Hybrid-Electric Vehicles—Engines and Powertrains Ronald K. Jurgen PT-143/3 Continuously Variable Transmission (CVT) Bruce D. Anderson and John R. Maten PT-125 Automotive 2030—North America Bruce Morey T-127 .
  • CR4 - Thread: Linear Actuator for Continuously Variable Transmission (CVT)
    Linear Actuator for Continuously Variable Transmission (CVT .