INSTRUMENTATION DEVELOPMENT FOR CRACK DETECTION OF SURFACE AND SUBSURFACE DEFECTS IN GREEN-STATE P/M COMPACTS THROUGH MULTIPROBE ELECTRIC RESISTIVITY TESTING

机译：通过多探针电阻率测试在绿色状态P / M压块检测裂纹和表面缺陷的仪器开发

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

A new instrumentation approach has been presented which exploits an electrostatic change in resistivity as an indicator of flaws in green-state P/M compacts. The inspection process relies on a novel planar multi-pin sensor head of 100 contacts that are simultaneously brought in contact with the sample. The hardware processing of the voltage signals and the subsequent software evaluation shows excellent ability to determine defective compacts in a wide range of material compositions. The defects can be either surface-breaking or subsurface with sizes as small as 20 microns. A number of tests with controlled and production compacts have underscored the success of this instrumentation approach.

机译：提出了一种新的仪器方法，该方法利用电阻率的静电变化作为生坯P / M压块缺陷的指示器。该检查过程依赖于具有100个触点的新型平面多针传感器头，该触点同时与样品接触。电压信号的硬件处理和随后的软件评估显示出出色的能力，可以确定各种材料成分中的压坯。缺陷可以是表面破裂的，也可以是尺寸小于20微米的亚表面缺陷。使用可控紧凑型和生产紧凑型的许多测试强调了这种仪器方法的成功。

著录项

来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.2047-2053|共7页
会议地点 SnowbirdUT(US)
作者
Reinhold Ludwig; Gene Bogdanov; William Michalson; Diran Apelian;
展开▼
作者单位

Department of Electrical and Computer Engineering;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类无损探伤仪器;
关键词

相似文献

外文文献
中文文献
专利

1. Three-Dimensional Solution and Experimental Confirmation for the Electric Resistivity Testing of Surface-Breaking Defects in Green-State Powder Metallurgy Compacts [J] . Reinhold Ludwig, Sergey Makarov, Diran Apelian Journal of Nondestructive Evaluation . 1998,第3期

机译：绿态粉末冶金块表面破裂缺陷电阻率试验的三维解决方案及实验证实
2. Detection of subsurface cracking depth using electrical resistivity tomography: A case study in Masjed-Soleiman, Iran [J] . Neyamadpour Ahmad Construction and Building Materials . 2018,第DECa10期

机译：使用电阻层析成像技术检测地下裂缝深度：以伊朗Masjed-Soleiman为例
3. Detection of subsurface soil cracks by vertical anisotropy profiles of apparent electrical resistivity [J] . Greve AK, Acworth RI, Kelly BFJ Geophysics: Journal of the Society of Exploration Geophysicists . 2010,第4期

机译：通过表观电阻率的垂直各向异性剖面检测地下土壤裂缝
4. INSTRUMENTATION DEVELOPMENT FOR CRACK DETECTION OF SURFACE AND SUBSURFACE DEFECTS IN GREEN-STATE P/M COMPACTS THROUGH MULTIPROBE ELECTRIC RESISTIVITY TESTING [C] . Reinhold Ludwig, Gene Bogdanov, William Michalson, Annual Symposium on Quantitative Nondestructive Evaluation . 1999

机译：通过多焦电阻率测试，用于绿态P / M紧凑型表面和地下缺陷裂纹检测的仪表开发
5. Development of a structured illumination reflectance imaging system for enhanced detection of subsurface and surface defects in apple fruit. [D] . Li, Richard. 2016

机译：开发结构化照明反射率成像系统，以增强对苹果果实表面和表面缺陷的检测。
6. Detection of Surface and Subsurface Cracks in Metallic and Non-Metallic Materials Using a Complementary Split-Ring Resonator [O] . Ali Albishi, Omar M. Ramahi 2014

机译：使用互补的开口环谐振器检测金属和非金属材料中的表面和亚表面裂纹
7. Instrumentation Development for Crack Detection of Surface and Subsurface Defects in Green-State P/M Compacts Through Multiprobe Electric Resistivity Testing [O] . Ludwig, Reinhold, Bogdanov, Gene, Michalson, Willaim, 1999

机译：通过多探针电阻率测试在绿色状态P / M压块表面和亚表面缺陷的裂纹检测仪器开发
8. Evaluation of the Radiographic Threshold Detection Level of Subsurface Crack-Like Defects in Aluminum Welds [R] . Tryon, R. W. 1968

机译：铝焊缝表面裂纹状缺陷的射线阈值检测水平评价

INSTRUMENTATION DEVELOPMENT FOR CRACK DETECTION OF SURFACE AND SUBSURFACE DEFECTS IN GREEN-STATE P/M COMPACTS THROUGH MULTIPROBE ELECTRIC RESISTIVITY TESTING

摘要

著录项

相似文献

相关主题

期刊订阅