Force measuring detector for weighing applications - has extensometer gauges in thin layers on membrane element having angled upper and lower layers with four deformable elements in between

摘要

The detector for measuring force comprises a number of extensometer gauges in the layers on a membrane element. Such detectors are employed in weighing applications. The detector comprises lower (50) and upper (51) base elements between which are four deformable elements (52) to the height of which a force is applied. Resulting height variation is measured by gauges (J1, J2) carried by the membrane (1) to which change in effective length of shaft (55) is transmitted. These signals are passed to printed circuit (60) which processes signals for bridge circuit and connected to it via sealed channel (61).