Vibration of Spiral Spring Apparatus
Product Code : EL-AMLE-10641
Quick Answer : This apparatus investigates vibrations on a spiral spring-rotating mass system, built around a shaft carrying a spiral spring – a metallic strip wound around a rod at one point – mounted on ball bearings with an integrated angle measuring scale to read the shaft's rotation. A metallic rod fitted with two sliding weights at its edges is used to deflect the shaft, and the deflection can be measured through a protractor together with the extent of the initial deflection, letting the unit determine the time period and frequency of the spiral spring. The spiral spring itself has a stiffness of c=238Nmm, a 10x1mm cross-section, an effective length of approx. 800mm, and inside/outside radii of 10mm and 50mm, all mounted on a 200x250mm base plate.
Spiral spring is a type of spring which is formed by a metallic strip wound around a rod at one point. The apparatus consists of a shaft on which the spiral spring is attached, and a metallic rod, containing masses at its edges, is used to deflect the shaft. The deflection can be measured through a protractor, and the extent to which the spring was deflected initially can also be found; this unit is designed to determine the time period of the spiral spring and its frequency.
Specification :
Investigation of vibrations on a spiral spring-rotating mass system
Axis mounted on ball bearings
2 levers with sliding weights
Spiral spring
Integrated angle measuring scale mounted on axis
Wall mounting plate made of anodised aluminium
Technical Data :
Spiral spring
stiffness: c=238Nmm
cross-section: 10x1mm
effective length: approx. 800mm
inside radius: 10mm
outside radius: 50mm
Angle measuring scale: 0…360°
Resolution: 1°
Base plate (wxh): 200x250mm
Weights made of stainless steel
Mass: 0.5kg
Diameter: 50mm
Levers made of stainless steel
diameter: 8mm
length: 154mm
arm radius of the rotating mass: 36…150mm
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Last Updated: September 2026
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