标题： 声卡光电门综述 显示英文标题

标题： Review of sound card photogates

摘要： 光电门可能是力学领域实验中最常用的电子仪器。 尽管许多制造商都提供光电门，但由于价格昂贵，它们在所有教室、多个实验甚至家庭实验中都无法广泛使用。 如今，所有计算机都有一个声卡——用于模拟信号的接口。 可以以几美分的价格制作非常简单但高度精确的光电门，同时也有成本仍然非常低的更复杂的解决方案可供选择。 在我们的综述中，我们详细展示了几种经过实验验证的实现声卡光电门的方法，并提供了一款功能齐全、免费、开源的光电门软件，作为比通常使用的声波记录程序更高效的实验工具。 更多相关信息请参见专用页面，www.noise.physx.u-szeged.hu/edudev。 显示英文摘要

摘要： Photogates are probably the most commonly used electronic instruments to aid experiments in the field of mechanics. Although they are offered by many manufacturers, they can be too expensive to be widely used in all classrooms, in multiple experiments or even at a home experimentation. Today all computers have a sound card - an interface for analogue signals. It is possible to make very simple yet highly accurate photogates for cents, while much more sophisticated solutions are also available at a still very low cost. In our review we show several experimentally tested ways of implementing sound card photogates in detail, and we also provide a full-featured, free, open-source photogate software as a much more efficient experimentation tool than the usually used sound recording programs. Further information is provided in a dedicated page, www.noise.physx.u-szeged.hu/edudev.