| 摘要 |
<p>Apparatus (10) for applying a force to a body (22), comprises a floatation tank (52) with a floatation member (42) disposed therein and having a rigid force transmitting column (30) extending between the first body (22) and the member (42), wherein the flotation tank contains a known volume of liquid having a density greater than the floatation member, and the floatation member (42) is displaceable relative to and into the liquid within to a position past its natural equilibrium position at which the member would normally float, to create an increase in upthrust equal to the mass of additional displaced liquid, which increase in upthrust is transmitted to the first body (22) by the column (30). A force measuring device (50) measures the resultant downward force created by the relative displacement of the member into the liquid as indicative of the increased upthrust created by the apparatus. There is also provided a method of applying a force to a body using the above apparatus (10).</p> |
