US 11,754,597 B2
Clamp sensor with a pair of clamp arms and electrical parameter measuring device
Tetsuya Komiyama, Nagano (JP)
Assigned to HIOKI E.E. CORPORATION, Nagano (JP)
Filed by HIOKI E.E. CORPORATION, Nagano (JP)
Filed on Apr. 21, 2022, as Appl. No. 17/725,864.
Claims priority of application No. 2021-072611 (JP), filed on Apr. 22, 2021.
Prior Publication US 2022/0341970 A1, Oct. 27, 2022
Int. Cl. G01R 15/14 (2006.01)
CPC G01R 15/14 (2013.01) 20 Claims
OG exemplary drawing
 
1. A clamp sensor comprising:
a pair of clamp arms that are formed in arc shapes and construct a ring-shaped sensor in a closed state where front ends of the clamp arms contact each other, wherein the clamp arms are each rotatable about a rotational shaft provided in a vicinity of a base end of each clamp arm so that the front ends come in to contact and move apart; and
a pair of operating arms that extend from the base ends of both clamp arms and are capable, by rotating about the rotational shaft so as to approach each other, of shifting both clamp arms into an open state where the front ends are separated,
wherein both operating arms are formed in arc shapes where, when looking along an axial direction of the rotational shaft, a first outer edge on an opposite side of one operating arm out of the operating arms to another operating arm-side of the one operating arm and a second outer edge of the other operating arm on an opposite side to the one operating arm-side of the other operating arm are curved in a same direction.