|
Standard Picomotor Actuators |
|
Picomotor actuators are ideal devices for motorizing fine-positioning stages and mounts in your optical or mechanical systems. Use them with our optomechanical translation stages or your own custom devices. They have better than 30-nm resolution with minimal backlash, and can exert a 5-lb (22-N) force. Moreover, they have exceptional longterm stability and the ability to hold their position with no power applied. These last two features make the Picomotor actuators unique among motion-control devices and ideal for typical set-and-hold applications. Such applications include precision control of sample holders inside cold and/or vacuum chambers, hands-off adjustment of hard-to-reach mirror mounts, or adjustments of optical mounts that are sensitive to forces applied while twisting a knob (for instance optimizing the alignment of a laser cavity or adjusting the pointing of a beam over a long distance).
The standard sized shanks of the Models 830X and 12X0.5-mm threading of the Models 832X let them fit into standard micrometer mounting holes. The Time Model 8351 gives you a solution for even the smallest application. For rotation without translation, use the Model 8341 rotating shaft.
Use these Picomotor actuators with our Model 8753 Intelligent Picomotor (iPicoTM) driver or Model 8703 TTL/Analog driver.
Contact us for custom configurations and volume pricing. |
|
Controller and driver example.
|
Here a motorized Pint-sized mount is being used to align the probe beam in a pump-probe demonstration.
|
We also offer integrated motion-control solutions.
|
Tiny Picomotor Actuators |
Our Tiny Picomotor actuator is a smaller-sized version of our standard Picomotor actuators. We have improved the design so that it will meet even more of your compact-area needs.
The Tiny Picomotor actuator is ideal for moving small linear stages, like our Compact Gothic-Arch-Bearing stage (Compact Gothic-Arch-Bearing Integrated Motion-Control Solutions). It is also integrated with some our our Pint-Sized mounts (Motorized Pint-Sized Mounts). The overall footprint is even smaller now; the cable exits from the side, similarly to our standard Picomotor actuators. For such a small device, it has an impressive pushing force. The maximum load for the Tiny Picomotor actuator is now 3 lbs (13 N).
We have also introduced a vacuum-compatible version of the Tiny Picomotor, the Model 8353-V. It is designed for environments down to 10-6 Torr. It's perfect for moving small optics and stages in your vacuum chambers.
With two mounting options, a standard 0.25" shank and a 1/4-40 thread version, it is straight-forward to incorporate it into your design. The Tiny Picomotor Actuator should be used with the iPico™ controllers and drivers (Intelligent Picomotor™ (iPico™) Modules) or our TTL/Analog Picomotor driver (TTL/Analog Picomotor™ Driver ). |
Closed Loop Picomotor Actuator |
Model 8310
U.S. Patent #5,394,049, #6,911,763, & #5,410,206
|
Calibrated highly-accurate positioning with all the benefits of our traditional Picomotor actuators- Compact package enabling integration into our translation stages and most of our optical mounts
- Completely compatible with our modular iPico™ network controllers
|
The Model 8310 closed-loop Picomotor actuator and Model 8751-CL Intelligent closed-loop Picomotor driver are ideal for applications where closed-loop control and position calibration is required. With an integrated rotary encoder and forward and reverse limit switches, this unique device offers the best attributes of the standard Picomotor actuator—<30-nm resolution, >5 lbs (22 N) of force along with set-and-forget long-term stability—with the added benefits of exceptional accuracy and ±1-µm bi-directional repeatability over the entire half-inch travel range.
Choose between operating the Model 8310 closed-loop Picomotor actuator in closed-loop mode where it can hold a set position, or command it to move a specified distance. You can also choose between position- or velocity-profiled movement. Either way, when the actuator reaches its target location, the controller will adjust the motor to the precise requested encoder count and then stop motion. Even if you keep the servo loop enabled, the motor will only move in response to any system disturbances which cause rotation of the screw. Because the inherent resolution of the motor is finer than the resolution of the encoder, zero-count encoder error is always achieved. You can query the encoder to determine the rotation of the screw at any time.
Use the Model 8310 closed-loop Picomotor actuator with our Model 8751-CL Intelligent Closed-Loop Picomotor driver. Our modular iPico drivers and controllers provide the ability to build a system incorporating multiple standard Picomotor actuators and one or more closed-loop Picomotor actuators at the same time on the same control network. Within the iPico system, the Model 8751-CL driver controls one Model 8310 closed-loop Picomotor actuator. It has one 4-pin RJ-22 connector for the Picomotor actuator and one 25-pin D connector for the encoder and limit-switch signal. You can control up to 31 Model 8751-CL drivers with the Model 8752 network controller (pages 192–193) from a computer via Ethernet or RS-232.
The Model 8751-CL Intelligent closed-loop Picomotor driver includes companion software and example programs in LabVIEW™, Visual C++ and Visual Basic—enabling you to get up and running quickly. The DCN (Distributed Control Network) setup and diagnostic utility software allows you test and use an actuator network without doing any programming. Combining the Model 8752 iPico Ethernet controller, with the Model 8757 iPico handpad (page 193) provides an option for stand-alone operation without use of a computer. The Model 8754 joystick (page 194) is also compatible with this driver. Standard RJ-45 connectors and cables are used to connect the driver to the controller or other modular iPico modules. Direct computer control without the Model 8752 network controller can be achieved by using a Model 8722 communication adapter (page 194) and DLL’s which you can download from our website.
The closed-loop Picomotor actuator can be integrated into most of our optomechanical mounts and is compatible with our translation stages. Please call us for more information on customized orders. |
|
|
|
|
|
|
|
|
|
|