Quote:
Originally Posted by FrankJ
Load cells used in weighing systems are generally accurate & robust. The problems come up with how they are placed into the system. The goals need to be total supported by the cells with no contact with anything else. I aspect this will get better as the weeks go on & lessons learned get incorporated into field set up.
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In college, my Design/Build/Fly team tried to build a wind tunnel balance. We were unsuccessful at convincing any of the faculty let us use a real load cell, so we found one on the internet that was surprisingly cheap. We bought it, and implemented it in our design. Big surprise, it did not work at all. In back to back runs it would give us totally different answers. We ended up using a postal scale, which worked great for our purposes! Another guy on that team checked out the HH field, and apparently FIRST is using that same load cell.
