提高学生对锁定放大器的理解
Improving Students' Understanding of Lock-In Amplifiers
摘要：
锁相放大器是物理研究中常用的一种多功能仪器。然而，许多学生在锁定放大器的基本工作原理方面遇到了困难，这可能会导致各种困难。为了提高学生的理解，我们一直在开发和评估一个基于研究的教程，它利用计算机模拟的锁定放大器。本教程允许学生通过比较他们对锁定放大器将如何表现的预测与模拟实验的结果来实现他们的概念困难。在面对他们的预测和锁定放大器结果之间的差异后，本教程针对学生的常见困难，并引导他们对锁定放大的原理有更深入的理解。
英文摘要：
The lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier which can lead to a variety of difficulties. To improve students' understanding, we have been developing and evaluating a research-based tutorial which makes use of a computer simulation of a lock-in amplifier. The tutorial allows students to realize their conceptual difficulties by comparing their predictions about how a lock-in amplifier will behave with the outcome of simulated experiments. After being confronted with discrepancies between their predictions and the lock-in amplifier results, the tutorial targets the common difficulties that students have and leads them to develop a deeper understanding of the principles of lock-in amplification.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
