公开(公告)号：US20240230392A1

公开(公告)日：2024-07-11

申请号：US18003053

申请日：2022-08-30

Applicant: Japan Infrastructure Measurement Inc.

Inventor： Tetsuya HIGUCHI ,  Yuki KOYAMA ,  Yuji KASAI

IPC: G01F23/263

CPC classification number: G01F23/266 ,  G01F23/268

Abstract: A measuring device according to an embodiment of the present disclosure includes an oscillation circuit 9, a cable 2, and a control device 100 that outputs measurement information of an electrostatic capacitance between the conductive wires based on the frequency information of the oscillation circuit 9. The plurality of conductive wires 21˜27 has at least a first mode that is comprised of at least a first and a second conductive wire group, and a second mode comprised of a third and a fourth conductive wire group. The first and the second conductive wire group are provided so as not to form a surrounding relation with each other. A phase of a signal in each conductive wire group is different. The third conductive wire group is provided so as to be surrounded by the fourth conductive wire group. A phase of a signal in each conductive wire group is different.