Compare Model Drawings, CAD & Specs Availability Price
8885
Piezo Mirror Mount, Pint-Sized, Center Mount, 0.5 in. Diameter
$2,121
In Stock
 8885 Piezo Mirror Mount, Pint-Sized, Center Mount, 0.5 in. Diameter
In Stock
 $2,121
8886
Piezo Mirror Mount, Pint-Sized, Corner Mount, 0.5 in. Diameter
$2,121
In Stock
 8886 Piezo Mirror Mount, Pint-Sized, Corner Mount, 0.5 in. Diameter
In Stock
 $2,121
8887
Piezo Mirror Mount, Pint-Sized, Corner Mount, 1.0 in. Diameter
$2,121
In Stock
 8887 Piezo Mirror Mount, Pint-Sized, Corner Mount, 1.0 in. Diameter
In Stock
 $2,121

Specifications

Features

Ultra Compact Design

The two Tiny Picomotor actuators that allow remote adjustment of the tip and tilt axes add only 0.5 in. of depth to these 0.5 inch (12.7 mm) diameter optical mounts. The Pint-Sized Picomotor Optical Mounts are fully compatible with the posts, pedestals, and mounts you already own.

Ultra-High Vacuum Version

The Pint-Sized Picomotor Optical Mount is available in an ultra-high vacuum compatible version, 8885-UHV, which can be used in UHV (10-9 Torr) environments, eliminating virtual leaks and utilizing materials with low outgassing properties. Featuring Kapton leads, the mount can be used in vacuum ultraviolet (VUV) and extreme ultraviolet (EUV) applications.

Easy-to-Use, Flexible Picomotor Controllers

Our Open-Loop Picomotor controllers and drivers are modular. You can daisy-chain up to 31 drivers together with four channels each, so you can have a network of up to 124 standard Picomotor actuators. You have two interface options with the controller system: hand pad or computer, both providing plug-and-play use. Alternatively, you may choose to use our TTL/Analog Picomotor driver.

How the Patented Picomotor Design Works

Picomotor actuators rely on the basic difference between dynamic and static friction. An example of this is the magician's "tablecloth trick," in which a quick pull (low dynamic friction) of the cloth leaves the dishes on the table, while a slow pull (high static friction) would pull the dishes off the table and cause a big mess! Our Picomotor actuator uses the same principle with a threaded jaw, similar to two halves of a split nut, clamped around a precision 80-pitch screw. One jaw is connected to one end of a piezoelectric transducer, and the other jaw is connected to the other end of the transducer. A slow electrical signal applied to the piezo slowly changes the length, causing the two jaws to slide in opposite directions. This slow sliding motion makes the screw turn (static friction). At the end of the transducer motion, a fast electrical signal quickly returns the jaws to their starting positions. Because of the screw’s inertia and low dynamic friction, it remains motionless, holding its position. Simply reversing the order of the fast and slow signals reverses the direction of rotation.

1.5 µrad Angular Resolution

Our Tiny Picomotor actuators allow for an angular resolution of 1.5 µrad, allowing for very small, controlled movements of your optics. The Tiny Picomotor actuator offers the additional advantage of using the integrated knobs for quick, manual adjustment of all axes.

Set-and-Forget Long-Term Stability

The Picomotor actuator moves when voltage is applied to the piezo, changing its length and in turn moving the jaws which turn the screw. When no power is applied, the actuator does not move. You can feel confident that your mount will stay put, even when you power down your system.

Smooth and Reliable Motorized Adjustment

Sapphire seats and optimized spring location and force provides for smooth, reliable motorized adjustment while maintaining a high level of thermal and mechanical stability.

Resources

Literature

Application Notes

Selection Guides

Technical Notes