公开(公告)号：US4667509A

公开(公告)日：1987-05-26

申请号：US856866

申请日：1986-04-24

申请人： Edward Tobolski ,  Ronald F. Grosso ,  Joseph Cieplak ,  Elliot Lang ,  Ralph Hershberger

发明人： Edward Tobolski ,  Ronald F. Grosso ,  Joseph Cieplak ,  Elliot Lang ,  Ralph Hershberger

IPC分类号： G01N3/44

CPC分类号： G01N3/44

摘要： An automatic tester for the hardness of materials is disclosed in which the operations are automated and in which the possibility of human error is significantly eliminated. Particularly, a linear digital encoder is employed which is attached to the capstan and elevating table arrangement. Pulses are developed according to the movement of the penetrator in the workpiece and are utilized to standardize and measure the time during which the major and minor loads are applied to the workpiece. Additionally, use of a CPU according to certain preset procedures and methods allows for enhanced reliability of the testing procedures. Conversions from different testing scales as well as corrections of certain factors is easily accomplished. Still further, the tester includes the provision to insure that certain ASTM standards are met by testing the device with standard test blocks and comparing results with those preset in the CPU.

摘要翻译： 公开了一种用于材料硬度的自动测试仪，其中操作是自动化的并且显着地消除了人为错误的可能性。 特别地，使用连接到绞盘和升降台装置的线性数字编码器。 脉冲根据穿透器在工件中的移动而被开发，并用于标准化和测量施加到工件上的主要和次要载荷的时间。 另外，根据某些预设步骤和方法使用CPU可以提高测试程序的可靠性。 来自不同测试规模的转换以及某些因素的修正很容易实现。 此外，测试者还包括通过使用标准测试块测试设备并将结果与​​CPU中预设的结果进行比较来确保满足某些ASTM标准的规定。