strain gauge

简明释义

应变仪

英英释义

例句

1.The engineer used a strain gauge to measure the deformation of the bridge under heavy traffic.

工程师使用了一个应变计来测量桥梁在重型交通下的变形。

2.The research lab utilized a strain gauge to analyze the mechanical properties of new materials.

研究实验室利用应变计分析新材料的机械性能。

3.To ensure safety, the construction team installed strain gauges on the beams to monitor stress levels.

为了确保安全，施工队在梁上安装了应变计以监测应力水平。

4.By placing a strain gauge on the aircraft wing, engineers can detect any structural weaknesses.

通过将应变计放置在飞机机翼上，工程师可以检测任何结构弱点。

5.The strain gauge readings indicated that the load was within safe limits during the test.

测试期间的应变计读数表明负载在安全范围内。

作文

In the world of engineering and physics, the ability to measure deformation is crucial for ensuring the integrity and safety of structures. One of the most important tools used for this purpose is the strain gauge. A strain gauge is a device that measures the amount of deformation or strain experienced by an object when subjected to external forces. This measurement is vital in various applications, including civil engineering, aerospace, and mechanical engineering.The principle behind a strain gauge is relatively simple. It consists of a thin wire or a metallic foil arranged in a grid pattern. When the object to which the strain gauge is attached undergoes deformation, the wire or foil experiences a change in length and, consequently, a change in electrical resistance. By measuring this change in resistance, engineers can determine the amount of strain the object has undergone.One of the key advantages of using a strain gauge is its sensitivity. These devices can detect very small changes in strain, making them invaluable in research and industrial applications where precision is critical. For example, in the construction of bridges, strain gauges are often used to monitor the stress on structural components. This information helps engineers ensure that the bridge can withstand the loads it will encounter over its lifetime.Moreover, strain gauges can be used in a variety of materials, including metals, plastics, and composites. This versatility allows engineers to apply them in diverse fields, from monitoring the performance of aircraft wings to assessing the structural integrity of buildings after an earthquake.Another significant application of strain gauges is in the field of biomechanics. Researchers use these devices to study the forces exerted on bones and joints during physical activities. By understanding how these forces affect the human body, medical professionals can develop better treatments for injuries and improve athletic performance.Despite their many advantages, there are challenges associated with using strain gauges. One of the primary concerns is temperature sensitivity. The resistance of the wire or foil can change with temperature, which may lead to inaccurate readings if not properly compensated. Engineers often employ temperature compensation techniques to mitigate this issue, ensuring the accuracy of the measurements.In conclusion, the strain gauge is a vital instrument in the fields of engineering and physics, providing essential data on the strain experienced by materials under various conditions. Its ability to deliver precise measurements makes it an indispensable tool for ensuring safety and performance in numerous applications. As technology continues to advance, we can expect further innovations in the design and functionality of strain gauges, enhancing their effectiveness and broadening their applications even further.

在工程和物理的世界中，测量变形的能力对于确保结构的完整性和安全性至关重要。用于此目的的最重要工具之一是应变计。应变计是一种测量物体在外力作用下经历的变形或应变的设备。这种测量在土木工程、航空航天和机械工程等各种应用中至关重要。应变计的原理相对简单。它由一根细线或金属箔片以网格模式排列而成。当与应变计连接的物体经历变形时，线或箔片的长度发生变化，从而导致电阻的变化。通过测量这种电阻的变化，工程师可以确定物体经历了多少应变。使用应变计的一个关键优点是其灵敏度。这些设备能够检测非常小的应变变化，使它们在精确度至关重要的研究和工业应用中不可或缺。例如，在桥梁的建设中，应变计通常用于监测结构组件上的应力。这些信息帮助工程师确保桥梁能够承受其整个生命周期内所遇到的负荷。此外，应变计可以用于各种材料，包括金属、塑料和复合材料。这种多功能性使工程师能够将其应用于不同领域，从监测飞机机翼的性能到评估地震后建筑物的结构完整性。应变计的另一个重要应用是在生物力学领域。研究人员使用这些设备来研究在身体活动中施加于骨骼和关节的力量。通过理解这些力量如何影响人体，医疗专业人员可以开发更好的伤害治疗方法并提高运动表现。尽管有许多优点，使用应变计也面临挑战。主要关注之一是温度敏感性。线或箔的电阻可能会随着温度变化而变化，如果没有适当补偿，可能会导致不准确的读数。工程师通常采用温度补偿技术来减轻这个问题，确保测量的准确性。总之，应变计是工程和物理领域的重要仪器，提供关于材料在各种条件下经历的应变的基本数据。它提供精确测量的能力，使其成为确保众多应用中的安全性和性能的不可或缺的工具。随着技术的不断进步，我们可以期待在应变计的设计和功能方面进一步创新，提高其有效性并进一步扩大其应用范围。