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  • What is an Electromagnet? General Technical Overview
    The electromagnet is a simple holding device. When energised it will attach itself to a flat steel surface with high force. When de-energised the attracting force is switched off.
  • Nanotopics: High Resolution Reflected Light Microscopy to Determine Filler Micro-Dispersion
    referred to as macro dispersion. Many researchers, however,. recognize the need to study particles and aggregates in the nano-scale, and have therefore. used more costly and complicated methods such as Atomic Force Microscopy, and Electron. Microscopy. Optical microscopy's shortcomings in ultra high
  • Faraday's Law of Induction
    Faraday 's law of induction is a basic law of electromagnetism. When an electric circuit is moved in the neighborhood of a magnet, a current is induced in the circuit during the movement. Interestingly, it does not matter whether the circuit moves or the magnetic moves. There will also
  • Integrated Power Loss Brake Features Lower Energy Consumption and Reduce Costs in Data-Center Fan Applications
    the back-electromagnetic force (BEMF) from the motor of a fan that has lost power can be harnessed to implement a PLB function that improves efficiency and creates safer operational environments. Newly introduced sensorless fan drivers with the PLB capability are presented as options that provide
  • Relays: Principle of Operation for Engineers
    causes an electromagnetic repulsion (the Lorenz force). The higher the current, the greater the repulsive force. Under extreme overloads such as short circuit conditions, there is a risk that the contacts will be forced apart, and the resultant sparking and local heating could destroy the switch
  • The 5 Best Industry Applications For Linear And Rotary Solenoids
    at high speeds. When a product needs to be released or diverted, it is a linear or rotary solenoid that controls these fast-paced movements. Johnson Electric solenoids can provide up to 30 pounds of force even though they are very compact (only about 2 inches long) - making them useful in canneries
  • The 5 Key Advantages of Magnetic Latching Solenoids
    Magnetism. 1. Permanent Magnet. Permanent magnet latching solenoids make use of permanent magnets to generate attraction needed to open the valve. Pulsing short currents either increases or decreases the electromagnetic flux depending on the current's polarity. 2. Residual Magnetism. Latching solenoids
  • An Innovative Cabling Concept Improves Reliability for Multi-Axis Stage Systems
    driving force, causing an undesirable temperature rise. 2. The bend resistance of the cables is not constant. The result is stick-slip plus randomly distributed effects that make high precision positioning more complicated. 3. Moving cables generate particles and tend to outgas which is undesirable

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