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  Engineering Mechanics and machi

  Shearing Force and Bending Moment Apparatus

  This demonstration unit facilitates the experimental investigation of the progression of the bending moment and shearing forces on a bar subject to point loads. In addition, the section principle commonly used in mechanics can be demonstrated. Due to the use of a low friction joint with two degrees of freedom at 1/3 of the span and two dynamometers, the measurements can be recorded directly from the bar. The deflection of the bar as result of the travel of the dynamometers and the horizontal alignment can be compensated and regulated using two adjustment bolts. The bar is loaded with graduated sets of weights that can be attached at any point on the bar.

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  Engineering Mechanics and machi

  Strain Gauge Training System

  Strain gauges are used extensively in sensor systems to detect forces, moments and deformations. The FL 100 experimentation system provides a comprehensive introduction to the fundamentals of strain gauges. Three test specimens for tension, bending and torsion are each fitted with three strain gauges. The strain gauges are wired into a full bridge configuration. A defined load is generated with the aid of weights, and the elongations can then be recorded. The specimens under test can be inserted quickly and precisely into the mounting frame. The strain gauge application area is protected by a Plexiglas cover, which also makes it clearly visible for inspection purposes. The measuring amplifier unit delivers the bridge supply voltage, and displays the load-dependent output voltage. The digital display is programmable, to provide readouts conforming to the variables being measured. It also features a tare function to exclude the influence of preloads. All detachable test components are clearly laid-out and well-protected inside a storage box.
  The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

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  Engineering Mechanics and machi

  Experimental Set Redundant Truss

  This set for use with the universal test frame enables the distribution of forces in redundant trusses to be investigated. Due to the range of different fixed length members, numerous plane trusses can be assembled. These are made redundant by the insertion of an additional member of variable length. All members are equipped with full bridge strain gauges. The measuring amplifier is required to display the forces in the members and to further process the measured values on a PC. A set of cables to connect strain gauges and the amplifier is included. The trusses can be loaded using a spindle drive with a ring dynamometer and strain gauge.

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  Engineering Mechanics and machi

  Cam Mechanism

  Cam mechanisms are used in many areas of technology, such as for valve control in combustion engines. The simple experimental set-up permits quick demonstration of the action principle, and can be used to demonstrate the influence of different cam shapes. The cam follower can work either as a roller tappet, cup tappet, or trailing lever. The stroke is measured using a mechanical position measurement gauge. A scaled disk indicates the associated angle of rotation.