>>
>So all we need is one sensor on the mainwheel. Again the Europa provides
us
>with an almost made-to-measure (sic) solution, the damper block. A
>measurement of the change in spacing of the plates with load gives a
>proportional (or at least calibrateable) reading of the load change.
>>
A small hole in the tunnel above the main wheel and a stick dropped trough
it to measure the distance between the top of the wheel and tunnel top
gives a dimension which is proportional to the deflection of the damper
block but with about a four times magnification factor.
I suspect, however, that the block may deflect more when hot than when cold
for a given load; for which a correction factor could be applied, and it
will probably have a very large hysteresis (see the Load/Deflection graph
for Indespension trailer units) which would be more difficult to compensate
for, especially if you bounced about while getting in or someone climbed on
to the wing to help a passenger buckle up.
Ted
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