摘要:
The invention concerns a manufacturing method for an electrical resistor (1), in particular for a low-resistance current measuring resistor, with the following steps (S1-S4): a) providing a plate-shaped base part (9) for the resistor (1), the base part (9) having a certain thickness and corresponding to the thickness a certain value of an electrical component characteristic (R), the thickness-dependent electrical component characteristic (R) preferably being the electrical resistance (1) of the base part (9), the sheet resistance or the transverse resistance, and b) rolling the base part (9) with a certain degree of rolling (AG), the thickness of the base part (9) decreasing in accordance with the degree of rolling (AG) and the value of the component characteristic (R) changing accordingly, c) measuring the thickness-dependent electrical component characteristic (R) on the rolled base part (9), and d) adaptation of the degree of rolling (AG) as a function of the measured electrical component characteristic (R), in particular in the context of a closed-loop control system with the electrical component characteristic (R) as controlled variable and the degree of rolling (AG) as control variable. Furthermore, the invention includes an appropriately manufactured resistor and a corresponding production plant.
摘要:
The invention relates to a resistor alloy (3) for an electrical resistor, in particular for a low-resistance current-measuring resistor, having a copper constituent, a manganese constituent and a nickel constituent. According to the invention, the manganese constituent has a mass fraction of 23% to 28%, while the nickel constituent has a mass fraction of 9% to 13%. The mass fractions of the alloy constituents are adjusted to one another in such a manner that, compared to copper, the resistor alloy (3) has a low thermal electromotive force at 20° C. of less than ±1 μν/K. The invention furthermore comprises a component made from such a resistor alloy and a production method therefor.
摘要:
The invention relates to a punched part for producing an electrical resistor, in particular a current measuring resistor, comprising a resistor element (9) consisting of a low-resistance resistive material (for example Manganin®) and two electrical connection parts (10, 11) consisting of a conductor material (for example copper), wherein the resistor element (9) is arranged between the two electrical connection parts (10, 11) in the direction of current flow in such a way that the electrical current flows through the resistor element (9). In accordance with the invention, the punched part additionally has a landing area (14) for providing an integrated circuit (16) on the landing area (14) of the punched part. Furthermore, the invention comprises a current sensor comprising such a punched part and a corresponding production method.