Lockable Differential Micrometer, 13 mm Coarse, 0.2 mm Fine, 11 lb.
Lockable Differential Micrometer, 13 mm Coarse, 0.2 mm Fine, 11 lb.
Model: DM-13L
Product Series Overview
DM-L Lockable Differential Micrometer HeadsThe DM-13L Differential Micrometer provides sub-micron positioning combined with a coarse travel of 13 mm. The design incorporates a standard micrometer with a high-resolution micrometer built around it. Coarse positioning, provided by the knob at the end of the micrometer, enables rapid translation with a sensitivity of 1 μm. The fine adjustment knob, closest to the positioner, allows ultra-fine positioning over 0.2 mm of travel, with 0.1 μm sensitivity.
Differential Micrometer Drive
When manual resolution of much less than one micrometer is needed, a differential screw is recommended. A differential micrometer uses a spindle with two opposing screw threads of slightly differing pitches (P1 and P2). As the spindle rotates, the net travel of the micrometer tip is : 1/Peff = 1/P1 - 1/P2. This mechanism allows extremely small adjustments using commonly available screws.
Lockable Coarse and Fine Adjustments
The DM-L Series is the first actuator where both coarse and fine travel can be locked with a single knob. Coarse positioning enables rapid translation with a sensitivity of 1 µm while the fine adjustment knob allows ultra-fine positioning over 0.2 mm travel, with 0.1 µm sensitivity.
Compatible With a Wide Range of Newport Stages and Mounts
DM-L micrometers have the industry-standard 9.5 mm mounting interface making them both interchangeable with other micrometers and compatible with Newport stages and mounts like those listed below.
- 461/462 Series
- 561/562 Series
- 423 Series
- 426 Series
- 460P Series
- 460A Series
- 401/406 Series
- RS Series
- GON Series
Resources & Downloads
2D Product Drawings
DM-L-S(110.8 kB, PDF)
Other
DM-13L RoHS Certificate(0, PDF)
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