Spring deflection

X = Spring displacement at time, t Zst = Static spring deflection under constant load, Fo Cl) = Forced frequency ci)o = Natural frequency of the oscillation t = Time... 

The energy absorbed by a torsional spring deflected through angle 6 equals ... 

Cumene adsorption experiments were carried out in a microbalance apparatus equipped with a quartz spring whose deflections were measured with a cathetometer. The unit also included a vacuum system capable of reducing the pressures to below 0.01 micron, and a Baratron continuous pressure-sensing device with a sensitivity of 1 micron. The amount adsorbed was measured by spring deflection, and checked by material balance on the gas phase based on an approximate chamber volume of 600 cc. The pressure measurements were noted at regular intervals until equilibrium was reached (less than 1 micron change in 5 minutes). These pressure vs. time data were used for diffusivity calculations. 

The operating principle of the YR-1 Rheometer is to drive a spindle through a calibrated spiral spring connected to a motor drive shaft (see Fig. 3). The vane spindle is immersed in the test materiaJ. The resistance of the material to movement is measured by observing increasing torque values as the YR-1 motor rotates. The amount of shaft rotation is measured by the deflection of the calibrated spiral spring inside the instrument. Spring deflection is measured with a rotary transducer. 

Maxwell model (Maxwell element) n. A concept useful in modeling the deformation behavior of viscoelastic materials. It consists of an elastic spring in series with a viscous dashpot. When the ends are pulled apart with a definite force, the spring deflects instantaneously to its stretched position then motion is steady as the dashpot opens. A simple combination of these two types provides a fair analogic representation of real viscoelastic behavior under stress. 

Mass and weight Balances, scales Balancing of the gravitation force, Hooke s law, springs deflection, strain gauge, ie, length-sensitive electrical resistance... 

The tester incorporates a spring with calibration curve and is accurately calibrated to have a slope of 70 3.5 kN/m at 1.8 kN force. Spring deflection is indicated by a vernier system with an accuracy of 0.05 mm applied directly to the moving plate. 

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