Step Down Transformer ( For Sonometer Experiment)
Product Code : SCL-PLE-11745
The StemAids Step-Down Transformer (Sonometer Grade) is a specialized AC power source engineered specifically for the electromagnetic excitation of ferromagnetic strings. Unlike standard power supplies, this unit is optimized to drive an external electromagnet at the mains frequency (50Hz or 60Hz), providing the periodic force necessary to induce standing waves in a sonometer. Manufactured to ISO 9001:2015 standards, it facilitates the quantification of resonant frequencies and the verification of the Laws of Transverse Vibrations within institutional physics laboratories.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Input Voltage |
220V−240V AC, 50Hz (Mains Isolated) |
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Output Voltage |
Constant low-voltage AC (typically 6V or 12V AC) |
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Operational Frequency |
Synchronized with AC mains for stable 100Hz or 120Hz magnetic pulses |
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Primary Application |
Dedicated driver for Sonometer Electromagnets |
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Safety Features |
Galvanic isolation and internal fuse protection |
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Interface Hardware |
4mm safety-shrouded sockets for electromagnet connection |
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Chassis Construction |
Compact, ventilated metallic or high-impact polymer enclosure |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
8504.31.00 (Transformers ≤1kVA) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Forced Vibration Interface: Facilitates student visualization of how a periodic electrical signal translates into mechanical oscillation, supporting Wave Mechanics Module 101.
- Resonant Frequency Quantification: Enables the physical study of harmonics, allowing learners to apply the known driving frequency to calculate the linear density of the string.
- Magnetic Pulse Analysis: Supports the analysis of the "double-frequency" effect, where a 50Hz AC input creates 100 magnetic pulses per second, causing the wire to vibrate at 100Hz.
- System Impedance Evaluation: Allows students to evaluate the efficiency of power transfer between the transformer and the electromagnet for maximum vibrational amplitude.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring high-density foam stabilization to protect the internal copper windings and core alignment.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and Electrical Safety Test Reports.
- Durability: Tropicalized design featuring vacuum-impregnated coils and moisture-resistant insulation for stable performance in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Step-Down Transformer (Sonometer Grade) ensures vertical manufacturing control:
- Frequency Stability: Directly derived from the mains, ensuring a rock-steady frequency for precise calculation of the string's fundamental mode.
- Batch-Tested for Uniform Reliability: Every transformer is load-tested to ensure it can drive standard laboratory electromagnets without overheating during extended experiments.
- Direct Factory Spares Availability: Guaranteed availability of replacement connection leads and internal protection components.
- Manufacturing Control: Direct oversight of the core lamination ensures low acoustic "hum" from the transformer itself, preventing interference with the student's observation of the sonometer's resonance.
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