Patent ID: 9360362
Filing Date: 2016-06-07
CPC Classification: G01G

Claim Text:
1. A device for measuring a force, operating according to the principle of electromagnetic force compensation, for a gravimetric measuring instrument, the device comprising: a stationary part; a load-receiving part; a pair of parallel guide members which connect the stationary part to the load-receiving part; at least one balance beam, having first and second lever arms; a measurement transducer, comprising, as elements, an electromagnetic coil and a permanent magnet, such that movement of the electromagnetic coil in an air gap of the permanent magnet generates a current, one of the elements carried by the second lever arm and the other element located on the stationary part; a coupling element, acting on the first lever arm to connect the balance beam to the load-receiving part, directly or by way of further lever, and acting on the second lever arm to connect the balance beam to the measurement transducer, directly or by way of further levers; and at least one sliding weight, one of which is arranged on each of the at least one balance beams, such that a drive mechanism varies the position of the sliding weight in a controlled way, based upon at least one of: a measurement variable of the measurement transducer and a position-measuring device cooperating with the measurement transducer.