COMPUTER-CONTROLLED MECHANICAL TESTING MACHINE FOR SMALL SAMPLES OF BIOLOGICAL VISCOELASTIC MATERIALS

被引：10

作者：

ASPDEN, RM ^{[1
]}

LARSSON, T ^{[1
]}

SVENSSON, R ^{[1
]}

HEINEGARD, D ^{[1
]}

机构：

[1] UNIV LUND,DEPT MED & PHYSIOL CHEM,S-22100 LUND,SWEDEN

来源：

JOURNAL OF BIOMEDICAL ENGINEERING | 1991年 / 13卷 / 06期

基金：

英国惠康基金;

关键词：

ARTICULAR CARTILAGE; MECHANICAL TESTING; VISCOELASTIC; COMPUTER CONTROL;

D O I：

10.1016/0141-5425(91)90102-D

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Time dependency in the mechanical properties of viscoelastic materials means that a variety of tests is often required to fully characterize their properties. Computer control is the best way of controlling loads and displacements and the rate at which they are applied, as well as recording and analysing the data produced. This paper describes apparatus for measuring the viscoelastic properties of articular cartilage in compression which is readily adaptable to any small sample in which accurate strain measurements require small, carefully controlled displacements. An IBM-type microcomputer is used to control a stepper motor driving a ball screw with a positional accuracy of about 1-mu-m.

引用

页码：521 / 525

页数：5

共 19 条

[1]

[Anonymous], 1980, VISCOELASTIC PROPERT

[2] FOURIER-TRANSFORM MECHANICAL SPECTROSCOPY [J].