Posted by yuhai jiang
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on 9/20/2001, 7:31 am
Dear Sir
I am interested in the rotating chopper. But, I would like to know whether or not these mechanical motors could be used in ultra high vacuum. Please send me the information including the quotation. In fact, I just need a simple rotating chopper with a constant frequency( several hundred Hz) and a simple discs with two about 1 mm broad slits. Can you give me an idea?
Thanks
Yuhai
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