Compensation of the temperature dependency of the zero point of a Wheatstone measuring bridge

摘要

The invention relates to a load cell (1) which comprises a measuring device with measuring elements for determining a weight, the measuring elements being arranged and coupled according to a Wheatstone measuring bridge, a measuring node of the Wheatstone measuring bridge being replaced by a supplementary circuit which has a first resistor , a second resistor and a third resistor connected according to a delta connection, the first resistor being arranged in a first branch of the delta connection, the second resistor being arranged in a second branch of the delta connection and the third resistor being arranged in a third branch of the delta connection, and either the second or the third resistor is a temperature dependent resistor with a significant temperature dependence.