The Uncertainty of Different Vickers-hardness Test Force in Medical Device Testing
10.3969/j.issn.1671-7104.2013.05.017
- VernacularTitle:医疗器械检测中维氏硬度不同试验力的不确定度
- Author:
Shuze HUANG
1
;
Biao DING
;
Fengping ZOU
Author Information
1. 上海市医疗器械检测所
- Keywords:
medical devices;
vickers-hardness;
test force;
uncertainty
- From:
Chinese Journal of Medical Instrumentation
2013;(5):367-369
- CountryChina
- Language:Chinese
-
Abstract:
Vickers hardness is widely used in the performance testing of the metal ic medical devices. It discusses the relationship between different test force and the uncertainty by mathematical simulation and experiment. With the increase of test force its uncertainty becomes smal er at 400 times magnification. If you can, you should try to choose a large test force, in order to improve the accuracy and repeatability. In the actual testing process, it is best not to use the micro vickers hardness test.
