2010منتدى Brackets/Widgets
طرق الموازنة الديناميكية لأجهزة التصوير المستقرة مقارنة
مضى على هذا 16 سنة. قد تكون المعدات والأسعار قد تغيّرت منذ ذلك الحين.
موضع خلافاختلف المشاركون ولم يصلوا إلى خلاصة. اقرأ النتائج على أنها مواقف، لا إجابة.
ما توصّل إليه النقاش
- يمكن أن تحقق طريقة اختبار الانقطاع توازناً دينامياً من خلال توجيه المركبة عمودياً، ثم تناوبها 90 درجة إلى مستوى رف الشاشة والبطارية، ثم إجراء اختبارات للهبوط وتعديل طول الذراع وموقع الكاميرا إلى أن يعلق جهاز الحفر دون أن يتدحرج أو يغلق
- The Mickey Dynamic Balance tool functions similar to the drop test method but uses a fixed point instead of performing 90-degree drop tests
- The Mickey tool has limitations including reliance on centerpost roundness, introduction of rotational drag, and a slight acceleration component that leaves approximately 2% of balance unachieved
- When monitor and battery center of gravity are on the same horizontal plane, both the drop test method and Mickey method can work effectively
- When monitor center of gravity is positioned above battery center of gravity, static balance does not guarantee dynamic balance and different balancing approaches produce different results
- Once a rig is dynamically balanced with the monitor and battery rack positions fixed, no further dynamic balancing is needed even if other parameters change
- The drop test balancing method is faster to perform than traditional spin-based balancing and can be executed while waiting for camera preparation on set
يعتمد على
- The drop test method requires understanding the relationship between monitor and battery center of gravity positioning
- Results depend on accurate measurement and adjustment of arm lengths and camera position
- Whether the drop test method requires specific drop time duration or produces identical results to spin testing was disputed in the thread
- The effectiveness of balancing methods when fiber tether cables are attached to the rig was not conclusively addressed
- Mickey tool costs approximately 200 USD
- The thread discusses primarily stabilized camera rig balancing which may not apply to other camera systems
- One participant demonstrated that balancing could achieve static balance without achieving dynamic balance depending on center of gravity positioning