Lockable Differential Micrometer Heads
Lockable Differential Micrometer Heads
The DM-L Series is the first actuator where both coarse and fine travel can be locked with a single knob. The novel locking mechanism clamps a non-threaded portion of the screw from all sides.
- Exceptional 0.1 µm sensitivity with up to 25 mm travel
- Simultaneously lock coarse and fine adjustments
- Standard Ø3/8 inch (9.5 mm) mounting barrel See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | DM-13L DM-L Lockable Differential Micrometer HeadsLockable Differential Micrometer, 13 mm Coarse, 0.2 mm Fine, 11 lb. | |||||
 | DM-25L DM-L Lockable Differential Micrometer HeadsLockable Differential Micrometer, 25 mm Coarse, 0.2 mm Fine,11 lb. Load | |||||
 | DM-6L DM-L Lockable Differential Micrometer HeadsLockable Differential Micrometer, 6 mm Coarse, 0.2 mm Fine, 11 lb. Load |
Specifications
Features
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
