Tangent Galvanometer
Product Code : SCL-PLE-11795
The StemAids Tangent Galvanometer is a high-precision magnetic measuring instrument engineered for the empirical study of the Earth’s horizontal magnetic component (Bh) and the verification of the Tangent Law. Optimized for University and Secondary-level physics, this apparatus utilizes a magnetic needle at the center of a vertical coil to detect and quantify electrical current through magnetic deflection. Manufactured to ISO 9001:2015 standards, it provides a stable, non-magnetic platform for high-fidelity electromagnetic experiments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Coil Frame |
Non-magnetic Aluminum or high-grade polymer ring (approx. 20cm diameter) |
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Turns Selection |
Multi-tap winding with selectable turns (e.g., 2, 50, and 500 turns) |
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Compass Box |
Rotatable housing with a permanent magnetic needle and a long aluminum pointer |
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Scale |
0?–90? four-quadrant scale with anti-parallax mirror strip |
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Base Interface |
Heavy-duty non-magnetic tripod base with leveling screws |
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Terminal Access |
High-quality brass terminals for multi-range current sensitivity |
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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)
- Electromagnetic Interface: Facilitates student visualization of the magnetic field produced by a circular current-carrying conductor, supporting Electromagnetism Module 101.
- Magnetic Quantification: Enables the physical study of magnetic vectors, allowing learners to apply the Tangent Law (I=Ktanθ) to calculate the Earth's horizontal magnetic field (Bh).
- Vector Analysis: Supports the analysis of resultant magnetic fields; students observe how the needle aligns with the vector sum of the Earth’s field and the field generated by the coil.
- Sensitivity Evaluation: Allows students to evaluate the impact of the number of turns (N) on the deflection sensitivity, fostering a deeper understanding of the relationship between current, geometry, and magnetic flux.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring "Zero-Magnetism" shielding and high-density foam to protect the delicate pivot of the compass needle during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed laboratory manual for Earth's magnetism experiments.
- Durability: Tropicalized design featuring non-corrosive brass hardware and anti-fungal coatings on the compass glass to ensure clarity in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Tangent Galvanometer directly ensures vertical manufacturing control:
- In-House Coil Winding: Every coil is precision-wound to ensure uniform diameter and minimal internal resistance, which is critical for linear current-to-field conversion.
- High-Sensitivity Pivot: The compass needle is mounted on a synthetic sapphire or hardened steel pivot to ensure "stick-free" movement and high repeatability in low-current measurements.
- Direct Factory Spares Availability: Guaranteed availability of replacement compass boxes, aluminum pointers, and non-magnetic leveling screws to maximize laboratory ROI.
- Manufacturing Control: Direct oversight of the anti-parallax mirror installation ensures that students can read deflection angles with sub-degree accuracy, reducing systematic observational errors.
