US 12,442,870 B2
Coupling capacitance estimation method, method for identifying corresponding ends of multicore cable, and method for manufacturing multicore cable assembly
Yohei Shirakawa, Tokyo (JP); and Seiji Kojima, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Filed by Hitachi Metals, Ltd., Tokyo (JP)
Filed on Mar. 22, 2022, as Appl. No. 17/701,279.
Claims priority of application No. 2021-053324 (JP), filed on Mar. 26, 2021.
Prior Publication US 2022/0317207 A1, Oct. 6, 2022
Int. Cl. G01R 31/28 (2006.01); G01R 31/67 (2020.01); H01B 7/00 (2006.01)
CPC G01R 31/67 (2020.01) [H01B 7/0009 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A coupling capacitance estimation method, comprising:
arranging numerous input electrodes so as to respectively face first exposed end portions of numerous insulated wires exposed at one end of a multicore cable;
arranging numerous output electrodes so as to respectively face second exposed end portions of the numerous insulated wires exposed at another end of the multicore cable;
performing measurement of a voltage value of a measurement output signal that is output by capacitive coupling from a second exposed end portion through an output electrode when a measurement input signal is input by capacitive coupling from an input electrode to a first exposed end portion, with a plurality of predetermined different combinations of the input electrodes to input the measurement input signal and the output electrodes to output the measurement output signal; and
based on the measured voltage values of a plurality of the measurement output signals, estimating respective coupling capacitances between the numerous input electrodes and the numerous first exposed end portions facing each other and respective coupling capacitances between the numerous output electrodes and the numerous second exposed end portions facing each other.