介绍EX5M教育手工操作的机械力 /压力测试仪

AZOM与ADMET的首席执行官兼创始人Rich Gedney进行了交谈，讨论ADMET的EX5M教育手工操作的机械力 /压力测试师。

ADMET多年来一直在与教育机构合作多年，您能告诉我们一些有关ADMET系统的信息，以及为什么您的系统在教育中特别受欢迎？

ADMET首先升级和改造其他公司的机器，因此对这些其他机器（包括柱塞和缺失）学习了很多东西。这些特征的关键是易于使用，其他制造商提供的大多数系统被认为更加困难或更复杂，而ADMET始终排名最容易使用。当然，在学术环境中，只有有限的时间才能让员工和学生实施系统，因此易用性对于成功至关重要。

作为EX5M的介绍，您能否给我们一些通用测试机的背景，例如它们通常使用什么？

Universal testing machines are frequently used to determine the Ultimate Tensile Strength (UTS), Modulus of Elasticity, Yield and Elongation of specimens made from a wide variety of metals, plastics, textiles, composites or biomaterials. Tests are conducted by pulling (tensile), pushing (compression), peeling, bending and shearing. Some characteristics of the material are more complex such as toughness, stiffness and residual strength, each requires that force be applied at a specified rate while force, extension and time are recorded.

为什么要在自动测试系统上选择手动系统？

Cost is the primary consideration for choosing a manually operated machine. Automatic machines are needed for higher force tests, long duration tests or tests requiring precise control of stress or strain rates. In our first 25 years in business, ADMET manufactured only automatically controlled machines. Manually operated machines are new to our product portfolio. We have developed a unique approach to allowing manually operated machines to conduct tests in accordance with recognized international standards such ISO and ASTM.

What features of the eX5M have been specifically designed with Educational applications in mind?

The ability to apply forces up to 5kN in tension or compression with very little mechanical effort by the student or staff and doing this in a small portable package. The student receives both visual and tactile feedback thus re-enforcing the behavior of materials. The ability for students to examine and compare results and experiment with the effects of varying mechanical arrangements and speeds leads to a wider educational experience.

在教育中使用EX5M的主要好处是什么？

EX5M非常经济。此外，指示系统和Windows软件为学生提供了视觉反馈，以确保测试以所需的加载速度或测试速度进行。与其他手动测试机相比，视觉速率指示降低了测试速度可变性，从而在测试之间提供了更一致的测量。历史上，由于不太复杂的手动机以及许多因测试速度变化而遭受的开放循环自动机器，标本之间的材料差异很小。EX5M系统可以辨别这些差异，即较少的系统无法记录。能够快速生成记录数据图的额外好处是在课堂内进行更深入的对话的导管；因此提供了更全面的教育经验。

提供一些令人印象深刻的功能，您可以简要讨论EX5M可以执行的每项测试吗？

The eX5M can perform a variety of tests including tensile pull to break, compression, bend, adhesive peel, shear, pull out and more. With these capabilities the user is able to determine a wide range of mechanical properties such as strength, stiffness, toughness, adhesive strength, resistance to sliding, strain rate sensitivity, ductility and more. In the last decade we have seen a marked increase in the number of new materials introduced into the marketplace. We expect that trend to accelerate, making it an exciting time to be involved in new material development. ADMET’s goal with the eX5M is to provide an economical way for budding materials scientists and engineers to learn about the mechanical properties of materials, thus making it more accessible to a wider group of students.

EX5M如何与实验室中其他现有系统集成？

EX5M伴随的软件包括将结果导出到电子表格和其他程序的能力，作为逗号分隔的数据，从而允许组装全面的测试报告，包括来自其他机械测试设备和分析仪器的数据。

EX5M具有ADMET的智能通用测试指标（UTI）；您能告诉我们更多有关在测试序列期间和之后用户提供的信息吗？

拉动标本直到断裂似乎很简单，但是如果五名学生对相同的标本进行测试，则结果很可能在测试之间会有所不同。每个学生使用其他机器时的强度，高度和敏捷，将其力量以不同的速度应用于样品。UTI向学生提供实时反馈，可以通过简单地将负载组件旋转更快或较慢来进行测试速度校正，如uti的条形图显示器上所示。因此，视觉和触觉反馈关于标本的表现如何变化，因此有助于加强教育工作者教育室教学。

During the test, the force (kN), position (mm) and time are simultaneously collected to eliminate skew while providing excellent accuracy and sensitivity as specified by ISO and ASTM. At the conclusion of a test the results of user activated calculations are displayed on the UTI and the test graph is saved to memory. The software operating on the computer captures the test curve and the results of the calculation in real time. Post test, the curve can be saved, printed or exported into a spreadsheet for further analysis by the student.

UTI也可以与许多自我识别的插头N-Play负载单元组合在一起，您能告诉我们更多有关这些选项的信息吗？

负载电池是测量施加到样品的力并具有许多力容量范围的传感器。额定5KN的负载电池通常以超过1％至100％的容量运行；50至5000纽顿。如果需要少于50个纽顿的力，则需要较低的容量负载电池。大多数手动测试系统通常都可以使用10：1的距离。EX5M将该范围扩展到100：1，因此5KN负载电池可用于低至50纽顿的压力。根据您的测试需求，可能需要额外的较低力量负载电池。但是，如何确保已附加适当的低电池？EX5M/UTI系统支持智能负载电池自我识别，该识别表明其力量和校准的UTI，从而使可能在开始测试之前使用哪个负载单元，并在超过最大能力之前先提醒学生保护负载电池免受伤害。

您能告诉我们更多有关EX5M可用选项的信息吗？

可以以张力，压缩和弯曲构型进行测试，而ADMET可以提供握把和固定装置，更高的分辨率位置测量以及各种不同力能力的范围范围。标准包括软件计算套件，可将广泛的预编程计算应用于任何测试。当用户确定其他有用的计算时，将添加这些计算，以扩大功能和支持ADMET的易用性理念。