Foucault Knife-Edge Test - How to build / Tutorial
25.4 هزار بار بازدید -
10 سال پیش
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This Foucault Knife-Edge Tester, originally
This Foucault Knife-Edge Tester, originally developed by Léon Foucault in 1858, is used to check optical surfaces, in my case to check the accuracy of a parabolic telescope mirror's surface.
Even it's based on a simple optical principle and ,even with lower machinery than i used, to build, this Foucault Tester allows you to measure very accurate with a variance of up to 1/10000 of a mm.
It is simple to use and build, inexpensive and more cost-effectivley than most other testing techniques.
I hope this video fulfills its destination and helps some people who are grinding/polishing a telescope mirror and want to test it during the polishing process.
If there are open questions left, just post them in the comments, or send me a message.
10 سال پیش
در تاریخ 1393/06/12 منتشر شده
است.
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