Induction Coil Apparatus
Product Code : SCL-PLE-11753
The StemAids Induction Coil Apparatus (Rhumkorff Coil) is a high-tension electromagnetic device engineered for the empirical study of mutual induction and the generation of high-voltage sparks from a low-voltage DC source. Optimized for Secondary and University-level physics, this apparatus is essential for demonstrating the principles of transformers and for powering vacuum discharge tubes (Geissler tubes). Manufactured to ISO 9001:2015 standards, it facilitates the quantification of spark gap potential and the verification of Faraday’s Law within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Spark Length |
Available in 10mm, 25mm, 50mm, and 100mm variants |
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Primary Coil |
Heavy-gauge enameled copper wire wound on a laminated iron core |
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Secondary Coil |
Thousands of turns of fine enameled copper wire, multi-layer insulated |
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Interrupter |
Adjustable platinum/tungsten contact points for high-frequency switching |
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Condenser |
Integrated high-voltage capacitor to minimize arcing at contact points |
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Input Power |
6V–12V DC (via Battery Eliminator or Lead-Acid Battery) |
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Chassis Construction |
Polished seasoned hardwood or high-impact polymer base |
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Safety Features |
Insulated handles for spark-gap adjustment and polarity reversing switch |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Mutual Induction Interface: Facilitates student visualization of how a rapidly changing magnetic field in the primary coil induces a high EMF in the secondary coil, supporting Electromagnetism Module 201.
- Voltage Transformation Quantification: Enables the physical study of turns-ratio and induction efficiency, allowing learners to apply the concept of high-voltage generation to estimate the dielectric strength of air.
- Waveform and Discharge Analysis: Supports the analysis of electrical discharge in gases when used in conjunction with vacuum tubes, demonstrating the transition from sparks to glow discharge.
- Circuit Component Evaluation: Allows students to evaluate the role of the capacitor (condenser) in suppressing "back-EMF" at the interrupter, ensuring a sharp collapse of the magnetic field for maximum secondary output.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring rigid internal stabilization to protect the delicate secondary windings and the sensitive interrupter mechanism from vibrational stress.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed Operating Manual with safety protocols.
- Durability: Tropicalized design featuring vacuum-impregnated coils and moisture-resistant insulation, tested to prevent "flashover" in high-humidity laboratory environments.
Direct OEM Sourcing Advantages
Procuring the StemAids Induction Coil Apparatus directly ensures vertical manufacturing control:
- In-House High-Voltage Testing: Every unit is stress-tested to its maximum rated spark length to ensure the internal insulation can withstand the extreme potential differences generated.
- Precision Interrupter Calibration: Every unit is batch-tested for timing consistency, ensuring a steady and reliable spark for consistent classroom demonstrations.
- Direct Factory Spares Availability: Guaranteed availability of replacement interrupter contact points, capacitors, and spark-gap electrodes to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the coil-winding and insulation process ensures that the secondary coil is free from internal shorts, providing a safe and reliable high-voltage source for years of use.
