The application discloses a resistance adjusting jig for adjusting resistance value of a bent
resistor. The resistance adjusting jig comprises a base, a positioning table upwardly protruding on the base, a probe
assembly, two groups of test pins of the probe
assembly being arranged at two ends of the positioning table in the transverse direction and used for contacting a pin area of the bent
resistor, and a pressing mechanism, a driving
assembly of the pressing mechanism being capable of driving a pressing block to move in the up-down direction above the positioning table, and a
material hardness of at least a lower end portion of the pressing block being greater than that of a flat plate portion of the bent
resistor. In the resistance adjusting process, the flat plate portion is clamped between the pressing block and the positioning table, and locally plastically deformed under the pressure in the up-down direction, and according to the
strain gauge effect, the deformation makes the effective conductive length of the flat plate portion slightly increase and the cross-sectional area slightly decrease, so that the resistance value is increased. The resistance adjusting is realized by the pure physical mechanical compression mode, the material discontinuity problem caused by the existing
cutting or
corrosion process is avoided, and the stability and reliability of the resistor after the resistance adjusting are effectively improved.