Force transducer forming a load cell

摘要

A force transducer, in particular a weighing cell, includes a spring body, which deforms under the action of a force or load to be measured, and a sensor that includes two separate sensor parts mounted at different locations of the spring body and that generates a sensor signal which is dependent on the relative position of the sensor parts with respect to each other. In order to improve the adaptation of the sensor to the spring body, one of the sensor parts is attached to the spring body with interposition of an electromechanical actuator and a control device is present, which controls the actuator dependent on the sensor signal in the direction of a reduction in the positional difference of the sensor parts.

主权项

1. A force transducer, comprising:
a spring body which deforms under action of a force or load to be measured, and a sensor comprising a plurality of separate sensor parts attached at different locations of the spring body and, the sensor generating a sensor signal which is dependent on a position of each of the plurality of separate sensor parts relative to one another; an interposed electromechanical sensor actuator, one sensor of the plurality of separate sensor parts being attached to the spring body via the interposed electromechanical actuator; and a control device which controls the actuator based on the sensor signal in a direction of a reduction in a positional difference between each of the plurality of separate sensor parts.