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shawc01

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Everything posted by shawc01

  1. Several problems with that approach: 1) Hull shape differs from sat to seat within a boat and hence moving the out-rigger is not an option as a unique out-rigger is used per position. 2) Such a system would require recalibration when rigging changes are made (ie oarlock is actually able to be located anywhere between about 88cm and 82cm from the middle of the boat) My original theory was that by making the force measurement at the oarlock (where the force is being appilied) there would be minimal need for calibration by the user and the oarlock can be easily transferred to other positions. Any thoughts on how to strain gauge the oarlock?
  2. Yes it is for measuring power output in a rowing application. I am guessing the device is not going to be cheap to build (given component cost) so I wanted it to be easily transferable between boats/seats so it can be used by multiple athletes, hence using the oarlock. It seems the logical point to measure force as it is the load point of the boat and hence unaffected by rigging changes. The added benefit is a rigging change can be analysed for whether it effects athletes effeciency. Perhaps a redesign of the typical oarlock shape could allow force to measured more easily? Merged post follows: Consecutive posts merged I have quickly drawn a picture of the two parts of the system. 1) The top image shows the oarlock from above (the red dot represents the pivot point). 2) The bottom image is the oar. The yellow part sits in the oarlock with a flat surface of it against the flat surface of the oarlock. Hope this helps people better understand the problem.
  3. Ok basicly a load is being applied to the flat surface on the inside of the device on the left. The device is mounted via a pin that goes through the hollow section on the left. I need some way of placing gauges on this to measure the applied force. Any ideas?
  4. I have been asked to design a system to measure the force being applied to the working face of a system. Basicly it is a class two lever and i want to measure the force being applied at the load point. The image below shows the object where the load is being applied. The load is applied to the inner face on the left hand side. Can someone suggest a location where I can find information on how and where to attach strain gauges to measure force on such a face?
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