公开(公告)号：US3771357A

公开(公告)日：1973-11-13

申请号：US3771357D

申请日：1970-12-18

Applicant: SNAM PROGETTI

Inventor： GAMBINI A

IPC: G01N3/00 ,  G01N3/08

CPC classification number: G01N3/08 ,  G01N2203/0019

Abstract: An apparatus for automatically determining the compression strength of spheroidal materials comprises an electromagnet having a vertically moving element and adjustment means to provide an air gap, a power winding for exciting the moving element magnetically coupled to a control winding which generates a pulse stopping the exciting current to the power winding when the spheroidal material breaks and means for amplifiying and detecting the pulse generated by the control winding and correlating the value of the excitation current with the compression strength of the sample.

Abstract translation: 用于自动确定球形材料的压缩强度的装置包括具有垂直移动元件的电磁体和用于提供气隙的调节装置，用于激励与控制绕组磁耦合的运动元件的功率绕组，该控制绕组产生停止励磁电流的脉冲 当球形材料断裂时到功率绕组，以及用于放大和检测由控制绕组产生的脉冲的装置，并将激励电流的值与样品的压缩强度相关联。