Precision mass measurement stands as a cornerstone across a spectrum of industries, driving standardized products and meticulous defect inspection. Traditionally, two pieces of technology have dominated this arena: strain gauge load cells and electromagnetic force compensation weighing cells. Yet, both have faltered in the face of evolving demands, hampered by issues of accuracy, speed, and ruggedness.
Strain gauge load cells, while strong and cost-effective, have grappled with limited accuracy and sluggish weighing speeds due to inherent damping deficiencies and resonant behaviors. Conversely, EMFC weighing cells, celebrated for their high repeatability and resolution, have been obstructed by tardy settling times and vulnerability to impact or overweight, courtesy of their flexure-based mechanisms.
In an effort to overcome these challenges, a recent scholarly endeavor unveiled a groundbreaking innovation: an EMFC weighing cell with magnetic levitation and OAV Air Bearing technologies. This paradigm-shifting solution was engineered to deliver swift settling times and unmatched ruggedness. Unlike its conventional counterparts reliant on flexure mechanisms, the proposed weighing cell leverages magnetic levitation harnessed through carefully crafted magnetic springs providing near-zero and negative stiffness. Complementing this innovation, OAV Air Bushings were at the center stage, bolstering load capacity, enhancing ruggedness, and mitigating measurement errors stemming from external forces.
The proposed solution boasts several key features that set it apart from traditional weighing technologies. Magnetic springs, masterfully engineered components, effortlessly offset deadweight while providing the system with near-zero stiffness, thus ushering in rapid settling times and heightened sensitivity. OAV Air Bushings, replacing traditional flexure mechanisms, increase load capacity and fortify ruggedness while minimizing measurement errors. Additionally, the system integrates cutting-edge optical encoders for precise position sensing and voice coil motors for exacting force generation.
The design and optimization journey of the magnetic springs were marked by intricate considerations spanning static force requisites, size parameters, and stiffness minimization. Through a combination of advanced optimization techniques and analytical modeling, the final design was highly successful, embodying the desired attributes of near-zero stiffness and gravity compensation, all within the stipulated constraints.
The optimized EMFC weighing cell, heralding a new era in precision weighing, showcased remarkable strides in settling time, ruggedness, and accuracy, outclassing its conventional counterparts. By harnessing the synergistic prowess of magnetic levitation and OAV Air Bushings, this pioneering solution opened up ways for unparalleled precision in diverse industries, especially those operating within dynamic weighing environments.
NYSE: OAV
Price: $52.75
Change: + 4.2%
The stock is in a strong uptrend, with support at $50.00 and resistance at $55.00. The 50-day moving average is trending upwards, and the MACD indicator suggests a bullish momentum. The stock price is trading above the upper Bollinger Band, indicating a potential overbought condition in the short term. Fibonacci retracement levels suggest that the stock may face resistance at $53.50 (38.2% retracement) and $56.00 (61.8% retracement) if the uptrend continues. The integration of OAV Air Bushings in the groundbreaking EMFC weighing cell is expected to drive further interest in the company's technology and potentially boost its stock price in the long run.
