公开(公告)号：US5619135A

公开(公告)日：1997-04-08

申请号：US503263

申请日：1995-07-17

Applicant: Gabriel Kohn ,  George Hicho ,  Lydon Swartzendruber

Inventor： Gabriel Kohn ,  George Hicho ,  Lydon Swartzendruber

IPC: G01B7/06 ,  G01N27/72 ,  G01N33/20 ,  G01R33/12 ,  G01B7/24 ,  G01R33/00

CPC classification number: G01N33/20 ,  G01B7/06 ,  G01N27/725 ,  G01R33/12

Abstract: A steel hardness measurement system and method of using same are provided for measuring at least one mechanical or magnetic characteristic of a ferromagnetic sample as a function of at least one magnetic characteristic of the sample. A magnetic field generator subjects the sample to a variable external magnetic field. The magnetic field intensity of the magnetic field generated by the magnetic field generating means is measured and a signal sensor is provided for measuring Barkhausen signals from the sample when the sample is subjected to the external magnetic field. A signal processing unit calculates a jump sum rate first moment as a function of the Barkhausen signals measured by the signal sensor and the magnetic field intensity, and for determining the at least one mechanical or magnetic characteristic as a function of the jump sum rate first moment.

Abstract translation: 提供钢硬度测量系统及其使用方法，用于测量作为样品的至少一个磁特性的函数的铁磁性样品的至少一个机械或磁特性。 磁场发生器使样品处于可变的外部磁场。 测量由磁场发生装置产生的磁场的磁场强度，并且提供信号传感器，用于当样品经受外部磁场时从样品测量巴克豪森信号。 信号处理单元计算作为由信号传感器测量的巴克豪森信号和磁场强度的函数的跳跃和速率第一时刻，并且用于根据跳跃和速率第一时刻确定至少一个机械或磁特性 。