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  • Application Note: Velocity Measurements
    How do I measure the velocity of a hydraulic cylinder using a LVDT signal?. The customer is testing aircraft hydraulic cylinders. He is plotting the throw of the cylinder using an LVDT (Linear Variable Displacement Transformer) which outputs a voltage proportional to the displacement along
  • Guidelines for Filtration
    Material contaminants can exist as gas, liquid or solid. A gas can either be dissolved or entrained in the fluid. A liquid, depending on its compatibility with the fluid, can be free, dissolved, or emulsified. The above types of contamination aggravate the abrasive wear in hydraulic components
  • Shock Absorbers
    absorbers have more hydraulic fluid and more surface area from which to radiate heat. Therefore, they can be cycled more frequently at maximum capacity than spring-return models. are nonadjustable, multiple-orifice devices, with holes spaced along the length of a cylinder. When a hydroshock is loaded
  • Enhanced pulp screening
    theories have been put forward to explain the action of contours. It is widely believed that contours introduce turbulence that deflocculates the pulp and clears fibers from the aperture. Contours have also been thought to reduce the hydraulic resistance of the flow through the aperture, and to local flow
  • Software Animates And Analyzes Fluid-Power Curcuits
    for company preferences. But few combinations of them worked well. Automation Studio, however, provides a user friendly and flexible way to draw schematics, document capabilities, and help size components. The software realistically shows pneumatic and hydraulic controls in operation. This improves
  • John Deere Uses Simulation to Dramatically Improve Tractor Comfort
    and in the fields. Deere’s approach was to develop a front axle suspension, the so-called Triple Link Suspension that is connected to the chassis at three points. A panel rod link (“Panhard rod”) transfers lateral forces between the suspension and the chassis. A hydraulic cylinder that uses a nitrogen accumulator
  • Smooth Moves
    here with a magnetostrictive displacement transducer from MTS Systems Corp., New Ulm, Minn., which can interface to a synchronous serial interface port on the computer to measure linear position of actuators such as hydraulic cylinders. The contrasts between a cubic and fifth-order spline become
  • How To Extend the Life of your Materials Testing Equipment
    powered and follow the appropriate guidelines below.  Mechanical testers use an electromechanical drive system to supply torque power to the load frame. A standard system consists of a servo-controlled drive motor, timing belts, and two screw columns.  Hydraulic systems use a hydraulic fluid