electromagnetic shim

简明释义

电磁夹片

英英释义

例句

1.The research team experimented with different configurations of the electromagnetic shim to optimize their setup.

研究小组尝试了不同配置的电磁衬垫以优化他们的设置。

2.An electromagnetic shim is essential for high-resolution spectroscopy.

高分辨率光谱学中，电磁衬垫是必不可少的。

3.The MRI machine uses an electromagnetic shim to improve image clarity.

MRI机器使用电磁衬垫来提高图像清晰度。

4.The technician replaced the electromagnetic shim to fix the distortion in the imaging results.

技术人员更换了电磁衬垫以修复成像结果中的失真。

5.By adjusting the electromagnetic shim, we can achieve better uniformity in the magnetic field.

通过调整电磁衬垫，我们可以实现更好的磁场均匀性。

作文

In the realm of modern technology, precision and accuracy are paramount, especially in fields such as medical imaging, telecommunications, and scientific research. One of the key components that contribute to achieving this level of precision is the use of devices known as electromagnetic shims. These innovative tools play a critical role in correcting magnetic field inhomogeneities that can adversely affect the performance of various equipment, particularly in magnetic resonance imaging (MRI) systems.To understand the importance of electromagnetic shims, we first need to delve into how magnetic fields function. In an ideal scenario, a magnetic field should be uniform and stable, allowing for accurate measurements and high-quality images. However, in reality, several factors can lead to variations in the magnetic field. These include the presence of ferromagnetic materials nearby, imperfections in the magnet itself, and environmental influences. Such inconsistencies can result in artifacts in MRI scans, leading to misdiagnosis or the need for repeat scans, which can be both time-consuming and costly.This is where electromagnetic shims come into play. By strategically placing these devices within the magnetic field, technicians can effectively alter and stabilize the magnetic environment. The electromagnetic shim works by generating a counteracting magnetic field that compensates for the inhomogeneities present. This process not only enhances the overall quality of the imaging but also improves the reliability of data collected during experiments or diagnostic procedures.The technology behind electromagnetic shims has evolved significantly over the years. Initially, shimming was done mechanically, using physical weights to adjust the magnetic field. However, with advancements in electromagnetism and computing technology, electromagnetic shims have become more sophisticated. They can now be controlled digitally, allowing for real-time adjustments based on feedback from the imaging system. This level of control ensures that the magnetic field remains optimized throughout the scanning process, leading to consistently high-quality results.Moreover, the application of electromagnetic shims extends beyond MRI machines. They are also used in particle accelerators, nuclear magnetic resonance (NMR) spectroscopy, and various other scientific instruments where precise magnetic fields are crucial. In these contexts, the ability to fine-tune the magnetic environment can significantly impact the accuracy of experimental results and the efficiency of operations.In conclusion, the role of electromagnetic shims in modern technology cannot be overstated. They are essential for correcting magnetic field inhomogeneities, thereby ensuring the accuracy and reliability of various systems that rely on precise magnetic measurements. As technology continues to advance, the development and implementation of electromagnetic shims will undoubtedly evolve, further enhancing our ability to explore and understand the complexities of the physical world. Their significance in industries such as healthcare and scientific research highlights the importance of innovation in achieving greater levels of precision and efficacy in our technological endeavors.

在现代科技领域，精确度和准确性至关重要，尤其是在医学成像、电信和科学研究等领域。影响这一精确度的关键组件之一是被称为电磁衬垫的设备。这些创新工具在纠正可能对各种设备性能产生不利影响的磁场不均匀性方面发挥着至关重要的作用，特别是在磁共振成像（MRI）系统中。要理解电磁衬垫的重要性，我们首先需要深入了解磁场的运作方式。在理想情况下，磁场应该是均匀且稳定的，这样才能进行准确的测量和高质量的成像。然而，在现实中，几种因素可能导致磁场的变化。这包括附近存在的铁磁材料、磁体本身的缺陷以及环境影响。这些不一致性可能导致MRI扫描中的伪影，从而导致误诊或需要重复扫描，这既耗时又昂贵。这就是电磁衬垫发挥作用的地方。通过在磁场内战略性地放置这些设备，技术人员可以有效地改变和稳定磁环境。电磁衬垫通过产生一个抵消的不均匀磁场来补偿存在的磁场不均匀性。这个过程不仅增强了成像的整体质量，还改善了在实验或诊断过程中收集的数据的可靠性。电磁衬垫背后的技术多年来有了显著的发展。最初，衬垫是通过机械方式完成的，使用物理重物来调整磁场。然而，随着电磁学和计算技术的进步，电磁衬垫变得更加复杂。它们现在可以数字控制，允许根据成像系统的反馈进行实时调整。这种控制水平确保了在扫描过程中磁场保持最佳状态，从而导致持续的高质量结果。此外，电磁衬垫的应用超出了MRI机器的范围。它们还用于粒子加速器、核磁共振（NMR）光谱仪以及其他各种对精确磁场至关重要的科学仪器。在这些背景下，微调磁环境的能力可以显著影响实验结果的准确性和操作的效率。总之，电磁衬垫在现代科技中的作用不可低估。它们对于纠正磁场不均匀性至关重要，从而确保依赖精确磁测量的各种系统的准确性和可靠性。随着技术的不断进步，电磁衬垫的开发和应用无疑会不断演变，进一步增强我们探索和理解物理世界复杂性的能力。它们在医疗和科学研究等行业中的重要性突显了创新在实现我们技术努力中更高精度和效率方面的重要性。