| 摘要 |
A force transducer comprises a force receiver (22) connected to a fixed support (14) by at least two serially connected superimposed measuring sections constituted by for example pairs of flexure strips (10, 12 and 18, 20) with strain gauges (24, 26) provided for producing an electrical measure of the force (F) applied to the force receiver (22). The measuring sections are coupled by an intermediate member (16) which is connectable directly to the force receiver (22) by a lost-motion coupling comprising abutment (26) and an aperture in the force receiver. The flexures (18, 20) may be less stiff than flexures (10, 12) thus enabling the flexures (18, 20) to be used to provide low force measurements and the flexures (10, 12) to be used for larger force measurements, the arrangement being such that the lost motion is taken up when the applied force reaches a certain level thereby bypassing the flexures (18, 20) to avoid overloading them. <IMAGE> |
