公开(公告)号：US20240210499A1

公开(公告)日：2024-06-27

申请号：US18288395

申请日：2022-04-26

Applicant: James CLEEWTT ,  Robin CORNELIUS ,  Jack WADE

Inventor： James CLEWETT ,  Robin CORNELIUS ,  Jack WADE

IPC: G01R33/14

CPC classification number: G01R33/14

Abstract: A method and apparatus for accurately mapping the closed magnetic circuit demagnetisation curve to and from a open magnetic circuit demagnetisation curve. The method utilises open circuit data from a pulsed field magnetometer (PFM) and computer modelling of both the PFM (open circuit) and permeameter (closed circuit) apparatus. This method is more accurate than previous methods and can calculate the closed circuit curve within the precision of both the PFM and the permeameter apparatus.