Futek Designs a Load Cell Fit for Outer Space

Irvine, CA, October 10, 2009 --(PR.com)-- The Challenge
The project, designing a specialized sensor for NASA, originated at Harvard University where student Shelly L. Anna began its research. It later needed the help of Massachusetts Institute of Technology (MIT) Dr. Gareth H. McKinley where they faced many difficulties reaching the NASA project requirements. Following an extensive search in the sensor market, Shelly L. Anna of Harvard & Kirk Logsdon of NASA chose FUTEK Advanced Sensor Technology, Inc. (FUTEK) to design and create a sensor device which would be used for measuring the difference of a liquid’s reaction forces on earth vs. its reaction in space, better known as “liquid separation”. The project, later named Sheer History Extension Rheology Experiment (Sphere), involved numerous back and forth meetings in order to fulfill the needs of N.A.S.A. and build a sensor which would be successful in achieving their goals. This project required a customized sensor with the ability to measure extreme low force value, specifically defined as a load cell (A transducer which converts force into a measurable electrical output). This particular Load Cell had to be carefully designed to endure the initial aerospace launch impact as well as the conditions in space which would have influenced the sensor’s performance. In order to achieve optimal results the sensor needed to be an extremely low capacity Load Cell (10 K Dyne) max, which is roughly 11 grams. Within this process, the project evolved and required several stages and models before reaching a final solution.

The Solution
Using an existing FUTEK high precision Model LRF400 Load Cell as a design base, they were able to modify and improve the product to meet the specific requirements of this particular project. The standard model was chosen due to its small size, housing, and lightweight design. It helped FUTEK to define the “package” of the product and transform it into a customized design. Through several tests, FUTEK developed a method of calibration which later proved to be valid in space and effectively overcame the problems they faced. They developed a solution which helped dampen the Load Cell with a very low capacity at an extremely fast rate. The final product weighed a total of 6.3oz., and was successfully launched on October 23, 2007 in NASA’s research project SPHERE on the International Space Station (ISS).

Conclusion
After contacting over 38 other companies, NASA chose FUTEK for this particular project. FUTEK was chosen not only due to their willingness to take on the project and its requirements, but also because of their proven track record. FUTEK's ability to take on challenges such as this and overcome the obstructions they may entail has proven them to be a qualified Sensor Solution Source. FUTEK has taken on and successfully delivered many difficult projects which, has further developed and demonstrated FUTEK’s creative capability while gaining experience and knowledge with the most unique applications. As a result, FUTEK has been able to expand their standard product line and continues to do so offering the most innovative and creative sensor solutions in the field, such as our USB Sensor Solution. FUTEK has the resources, experience and capabilities of supporting any application or challenge given to them. They have used these experiences and the combination of improved electronics, fabrication, and wire EDM to develop new lines of products, such as FUTEK’s LSB200 Jr. S-beam Load Cell and USB Sensor Solution which, you can find on the FUTEK website.

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