Vibration of Spiral Spring Apparatus | ProDynami – 1296
The Vibration of Spiral Spring Apparatus ProDynami – 1296 clamps a cold rolled steel spiral spring between a ball bearing mounted shaft and fixed bracket. This Vibration of Spiral Spring Apparatus uses adjustable sliding weights on levers to form a rotating mass with variable moment of inertia. It features a 1° resolution angle scale for measuring rotation and studying natural frequency. The apparatus is wall-mountable and includes a stopwatch and full weight set.
The Vibration of Spiral Spring Apparatus ProDynami – 1296 clamps a spiral spring made of cold rolled steel between a ball bearing mounted shaft and a fixed bracket. This Vibration of Spiral Spring Apparatus uses two sliding weights on levers to form a rotating mass with adjustable moment of inertia. The angle of rotation is read off a 1° scale disc attached to the shaft.
Product Overview
A spiral spring made of cold rolled steel is clamped between a ball bearing mounted shaft and a fixed bracket. Two levers are fitted to the shaft diametrically opposite each other. Two sliding weights of metal on the levers can be securely fixed in position using clamping screws. These form the rotating mass with an adjustable moment of inertia.
The system is displaced by hand. The angle of rotation is read off on a 1° scale disc that is also attached to the shaft. The Vibration of Spiral Spring Apparatus is intended for wall mounting.
Vibration of Spiral Spring Apparatus ProDynami – 1296, Technical Specifications
| Specification | Detail |
|---|---|
| Function | Determines the periodic time for a spiral spring attached to a shaft of vibration moment of inertia |
| Effective Torque | 30mm |
| Timing | Stop watch included |
| Accessories | All necessary accessories with list |
| Documentation | Instruction language provided |
Technical Data
Spiral Spring
| Parameter | Value |
|---|---|
| Stiffness | c=238Nmm approximately |
| Cross-section | 10x1mm |
| Effective length | approx. 800mm |
| Inside radius | 10mm |
Levers
| Parameter | Value |
|---|---|
| Material | Stainless steel |
| Diameter | 8mm |
| Outside radius | 50mm |
Weights
| Parameter | Value |
|---|---|
| Material | Stainless steel |
| Mass | 0.5kg |
| Diameter | 50mm |
| Length | 154mm |
Rotating Mass
| Parameter | Value |
|---|---|
| Arm radius | 36…150mm |
Angle Measuring Scale
| Parameter | Value |
|---|---|
| Range | 0…360° |
| Resolution | 1° |
Key Features
- Spiral Spring: cold rolled steel, stiffness c=238Nmm approximately, effective length approx. 800mm
- Cross-section: 10x1mm, inside radius 10mm
- Levers: stainless steel, 8mm diameter, 50mm outside radius
- Sliding Weights: stainless steel, 0.5kg mass, 50mm diameter, 154mm length
- Adjustable Moment of Inertia: achieved via sliding weights secured with clamping screws
- Arm Radius: adjustable between 36mm and 150mm
- Angle Measuring Scale: 0 to 360°, 1° resolution
- Effective Torque: 30mm
- Mounting: intended for wall mounting, central to how this Vibration of Spiral Spring Apparatus is set up
Experiments
- Determination of the stiffness of a spiral spring
- Determination of the natural frequency of a spiral spring-rotating mass system: with varying total vibrating mass, with varying mass distribution
Construction and Design
The Vibration of Spiral Spring Apparatus ProDynami – 1296 clamps a spiral spring made of cold rolled steel between a ball bearing mounted shaft and a fixed bracket. The spring has a stiffness of approximately c=238Nmm, a cross-section of 10x1mm, an effective length of approximately 800mm, and an inside radius of 10mm. Two levers, made of stainless steel with an 8mm diameter and 50mm outside radius, are fitted to the shaft diametrically opposite each other. Two sliding weights, made of stainless steel with a mass of 0.5kg, 50mm diameter, and 154mm length, can be securely fixed on the levers using clamping screws, forming a rotating mass with an arm radius adjustable between 36mm and 150mm. The angle of rotation is read off a scale disc attached to the shaft, ranging 0 to 360° with a resolution of 1°. The apparatus has an effective torque of 30mm and is intended for wall mounting.
Scope of Delivery
- 1 Experimental module
- 1 Set of weight
- 1 Stopwatch
- 1 Instruction manual
Q: What is the Vibration of Spiral Spring Apparatus ProDynami – 1296 used for?
A: It is used to determine the stiffness of a spiral spring and the natural frequency of a spiral spring-rotating mass system, with varying total vibrating mass and mass distribution.
Q: What is the stiffness of the spiral spring?
A: The spiral spring has a stiffness of approximately c=238Nmm.
Q: How is the moment of inertia adjusted?
A: Two sliding weights on the levers can be securely fixed in position using clamping screws, with an arm radius adjustable between 36mm and 150mm, to adjust the moment of inertia.
Q: How is the angle of rotation measured?
A: The angle of rotation is read off a scale disc attached to the shaft, ranging 0 to 360° with a resolution of 1°.
Q: How is the apparatus mounted?
A: The apparatus is intended for wall mounting.
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