Review of sound card photogates

Details Review of sound card photogates Review of sound card photogates

2011-03-09

arxiv.org/abs/1103.1760v1

Eur.J.Phys.32:905-924,2011

Physics

Popular Physics

Scientific paper

10.1088/0143-0807/32/4/006

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.

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