Accessories; 10:1 Gear Ug 3000 - BRUEL & KJAER 1022 Instructions And Applications

6. ACCESSORIES
10:1 GEAR UG 3000
When making narrow band frequency analyses of a spectrum that has
narrow resonances it is important to have a slow and constant sweep speed.
Clearly if the sweep speed varied, the narrow filter might jump past one of
the resonances.
The 2020 is driven electrically from the 1022 which is in turn driven by a
flexible shaft from the Level Recorder 2305. Hence for narrow band ana-
lyses the 10:1 Gear UG 3000 is recommended (Fig.6.1.). Generators 1022
or 1024 connect directly to this gear, which is driven from DRIVE SHAFT
II of the 2305 Level Recorder via the Flexible Shaft UB 0041, as shown in
Fig.6.2. Thus the mechanical loading on the Flexible Shaft is considerably
reduced and the sweep speed regulation is improved by a factor of 10 or
more.
To 1022 or 1024
To
UB0041
Fig.6.1. The 10:1 Gear UG 3000
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