Spot Reflecting Galvanometer
Product Code : SCL-PLE-11696
The StemAids Spot Reflecting Galvanometer is a high-precision electromagnetic instrument engineered for the detection and quantification of extremely low-magnitude currents (10−9 Amperes). Optimized for University-level physics and Bridge-balancing experiments, this "Spot-on-Scale" apparatus utilizes a light-beam pointer to eliminate mechanical friction and inertia. Manufactured to ISO 9001:2015 standards, it provides a stable platform for verifying ballistic discharge and null-point detection within advanced institutional laboratories.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Sensing Mechanism |
Moving Coil assembly suspended via high-tensile phosphor-bronze strip |
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Optical Interface |
Integrated concave mirror with high-intensity 6V/12V lamp and lens system |
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Display Scale |
150-0-150mm or 300mm translucent glass/polymer scale |
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Sensitivity |
Typically 10−8 to 10−9 Amperes per division |
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Functional Principle |
D'Arsonval movement with Optical Lever amplification |
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Damping Type |
Electromagnetic (Eddy current) damping for rapid stabilization |
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Chassis Construction |
Light-shielded enclosure with leveling screws and spirit level |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9030.33.00 (Instruments for measuring electrical current) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Optical Lever Interface: Facilitates student visualization of how a small angular deflection of a mirror results in a large displacement of a light spot on a distant scale, supporting Advanced Electromagnetism.
- Current Sensitivity Quantification: Enables the physical study of extremely weak signals, allowing learners to apply the instrument in Wheatstone Bridge or Potentiometer circuits where standard meters fail.
- Ballistic Discharge Analysis: Supports the analysis of transient currents (capacitor discharge) by observing the initial "throw" of the light spot.
- Damping Evaluation: Allows students to evaluate the difference between "dead-beat" (aperiodic) and oscillatory motion by adjusting external circuit resistance.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring Arrestor-Lock technology to secure the delicate suspension strip during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and illustrated Technical Manuals in English.
- Durability: Tropicalized design featuring anti-fungal optical coatings and gold-plated terminals to prevent oxidation and maintain low contact resistance.
Direct OEM Sourcing Advantages
Procuring the StemAids Spot Reflecting Galvanometer directly ensures vertical manufacturing control:
- In-House Suspension Tuning: Phosphor-bronze strips are batch-tested for torsional consistency to ensure linear deflection across the entire scale.
- Batch-Tested for Optical Clarity: Every unit undergoes a focal-length check of the concave mirror to ensure a sharp, well-defined "spot" on the scale.
- Direct Factory Spares Availability: Guaranteed availability of replacement suspension strips, specialized lamps, and translucent scales to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the coil winding and magnet strength ensures high electromagnetic torque-to-weight ratios across all production lots.
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