A MECHANICAL SPECTROMETER FOR BIOLOGICAL MATERIALS

本研究将开发一种通用的力学试验机 （机械光谱仪）用于生物材料。 这 一台以微处理器为基础的机器也将进行“标准”材料测试 作为这些测试的组合，通过调用不同的软件程序。 使用具有软件控制的微处理器也将导致 一种相对简单的机器，可以以相对较低的成本生产和销售。 与基于硬件控制的设备相比，价格低廉。 在 建议第一阶段的工作，我们将设计一个原型材料试验机 以执行恒定应变率、蠕变（负载的阶跃变化）、应力 松弛（位移的阶跃变化）和振荡试验， 力和位移控制模式，并在压缩，拉伸或 扭转模态 拟议的文书将适用于 基础研究和商业测试。 机械性能试验 在许多情况下，功能正常的生物组织与 传统的评估程序（组织学，生化分析）， 确定组织的状态和功能能力。 然而研究人员 经常偏离他们调查的主要目标， 开发一种适合自己需要的试验机。 市售 设备，适合生物测试，将消除这些昂贵的， 多余的任务 这也将有相当多的应用 商用聚合物研究和开发仪器。

This research will develop a general purpose mechanical testing machine (Mechanical Spectrometer) for biological materials. This microprocessor-based machine will perform "standard" material tests as well as combinations of these tests, by calling different software programs. Using a microprocessor with software control will also result in a relatively simple machine which can be produced and sold at a relatively low price, when compared to devices based on hardware control. In the proposed phase I work we will design a prototype materials testing machine to perform constant strain rate, creep (step change in load), stress relaxation (step change in displacement) and oscillatory tests in both force and displacement control modes and in compression, tension or torsional modes. The proposed instrument will have application in both basic research and commercial testing. Mechanical tests of mechanically functioning biological tissues are, in many cases, as important as more traditional evaluation procedures (histology, biochemical analysis) in determining the state and functional ability of a tissue. Yet researchers are often diverted from the primary goals of their investigation by having to develop a testing machine for their own needs. A commercially available device, suited for biological testing, would eliminate these expensive, redundant tasks. There will also be considerable application for this instrument in commercial polymer research and development.