Patent ID: 6832528
Filing Date: 2004-12-21
Classification: G01G,G01L

Abstract:
A load cell comprising a force transducer for recording a weight, the force transducer comprising a part which does not deform under loading and a force introduction part with an elastically deformable part, the elastically deformable part and the non-deforming part each comprising a measuring portion, the measuring portions defining a spaced relationship of the elastically deformable part and the non-deforming part to each other, said spaced relationship changing under loading, at least one of said measuring portions comprising a recess, and a sensor arrangement, the sensor arrangement comprising an inductively operating sensor element and a signaling face, the sensor element being disposed in the recess aligned toward and opposite said signaling face, said sensor element adapted to detect changing of the spaced relationship as an electric signal, the force transducer further comprising a circuit for converting the electric signal into a weighing signal, the sensor element being shielded against external electromagnetic fields and being encapsulated, and wherein the load cell operates on the eddy current principle.