Parallelogram Law Apparatus | Gravesand
Product Code : SCL-PLE-11752
The StemAids Parallelogram Law Apparatus (also known as Gravesande’s Apparatus) is a precision-engineered vertical workstation designed for the empirical study of concurrent forces. Optimized for Secondary and University-level mechanics, this apparatus facilitates the quantification of vector addition and the verification of equilibrium conditions. Manufactured to ISO 9001:2015 standards, it provides a low-friction environment for demonstrating the Parallelogram Law of Forces within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Chassis Construction |
Large-format polished wooden board or powder-coated metallic backboard |
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Pulley System |
Two high-sensitivity, ultra-low friction nylon/brass ball-bearing pulleys |
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Mounting Hardware |
Adjustable pulley clamps for varied angular configurations |
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Force Components |
3x Sets of slotted brass/iron weights (typically 50g increments) with hangers |
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Measurement Interface |
Integrated mirror-strip and thread-line for parallax-free tracing |
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Base Support |
Heavy-duty "T" or "H" shaped stable iron base with leveling screws |
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Functional Principle |
Vector Addition / Statics / Equilibrium of Concurrent Forces |
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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)
- Concurrent Force Interface: Facilitates student visualization of how multiple forces (P,Q,R) act on a single point (the "knot") to achieve state equilibrium.
- Vector Resultant Quantification: Enables the physical study of force magnitude, allowing learners to apply the formula R=P2+Q2+2PQcosθ to verify experimental results.
- Geometric Analysis: Supports the analysis of the parallelogram construction by tracing the lines of action onto paper and completing the geometric shape to find the diagonal.
- Experimental Error Evaluation: Allows students to evaluate the impact of pulley friction and thread mass on the accuracy of the resultant vector measurement.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring flat-pack architecture and high-density foam padding to prevent warping of the backboard during maritime transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed Lab Manual for vector mechanics.
- Durability: Tropicalized design featuring anti-rust coatings on all metallic parts and moisture-resistant treatment for wooden boards, ensuring stability in varied laboratory climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Parallelogram Law Apparatus directly ensures vertical manufacturing control:
- In-House Pulley Calibration: Every pulley is batch-tested for minimal "starting friction" to ensure that the equilibrium point is sensitive to even the smallest mass changes.
- Precision Leveling: The backboard is verified for absolute verticality, which is critical for ensuring that gravitational force acts parallel to the board surface.
- Direct Factory Spares Availability: Guaranteed availability of replacement slotted weights, high-tensile threads, and spare pulleys to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the weight-set calibration ensures that a "50g" weight is accurate within ±1%, providing high-fidelity data for student analysis.
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