Melde’s Apparatus
Product Code : SCL-PLE-11744
The StemAids Melde’s Apparatus is a precision-engineered acoustic workstation designed for the empirical study of standing waves in a stretched string. Optimized for University-level Physics and Advanced TVET curricula, this apparatus facilitates the quantification of the relationship between frequency, tension, and wavelength. Manufactured to ISO 9001:2015 standards, it provides a high-stability platform for verifying the Laws of Transverse Vibrations and determining the frequency of an AC supply or tuning fork.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Vibrator Interface |
Electromagnetically driven tuning fork or heavy-duty solenoid vibrator |
|
Operational Modes |
Supports both Transverse and Longitudinal vibration settings |
|
String Assembly |
Low-stretch, high-visibility thread/cord with integrated pulley and pan |
|
Tension Control |
Set of slotted weights (typically 5g to 50g) for incremental loading |
|
Input Power |
2V–6V DC or AC (via Battery Eliminator or Signal Generator) |
|
Chassis Construction |
Powder-coated metallic base with vibration-damped leveling feet |
|
Functional Principle |
Standing Wave Resonance / Melde’s String Theory |
|
ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
|
HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Wave Morphology Interface: Facilitates student visualization of nodes and antinodes in a vibrating string, supporting Wave Mechanics Module 201.
- Frequency Quantification: Enables the physical study of periodic motion, allowing learners to apply the formula f=2LpmT to calculate the frequency of vibration.
- Vibration Mode Analysis: Supports the analysis of phase differences by switching between transverse (perpendicular) and longitudinal (parallel) arrangements.
- Tension-Velocity Evaluation: Allows students to evaluate how the velocity of a wave on a string changes with the square root of the applied tension (v=T/μ).
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring high-density foam molding to protect the delicate tuning fork tines and pulley bearings from shock during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and detailed Experiment Guides in English.
- Durability: Tropicalized design featuring oxidation-resistant finishes on all metallic components, tested for performance in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring Melde’s Apparatus directly from StemAids ensures vertical manufacturing control:
- In-House Magnetic Calibration: Every electromagnetic vibrator is batch-tested for resonance stability to ensure clean, jitter-free standing wave patterns.
- Batch-Tested for Uniform Reliability: Pulleys are inspected for ultra-low friction to ensure that the tension applied by the weights is accurately transferred to the string.
- Direct Factory Spares Availability: Guaranteed availability of replacement specialized thread, slotted weights, and electromagnetic coils to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the base casting ensures high mass-stability, preventing unwanted parasitic vibrations from interfering with the student's
.jpg)