VORRICHTUNG ZUR UNTERBRECHUNG VON LICHTSTRAHLEN ZUR VERWENDUNG IN EINEM GASANALYSEGERAET.

摘要

In an apparatus for intermitting beams of light for use in a gas analyzer in which a rotary shaft (9) of a chopper (2) is supported by two ball bearings (10, 11), in order to avoid a noise modulation of the measuring signal due to a bearing play, an outside ring (10a) of one ball bearing (10) is fixedly mounted in a bearing housing (12) and the other ball bearing (11) is movably arranged in the thrust direction relative to rotary shaft (9), and said movable ball bearing is bias forced in the thrust direction relative to said shaft (9) by an elastic member (16).