V-273 PIMag Voice Coil Linear Actuator
Description
A series of actuators based on PI Mag non-contacting voice-coil linear motor technology ensures greater dynamics and positioning accuracy. With low wear and high lifetime, different travel and force capabilities are available, in addition to custom-engineered solutions.
The V-273 automation actuator comes with a unique controller that reads the actuator's force and position sensors in parallel and seamlessly switches from closed-loop force control to position control, and vice versa. OEM and industrial applications with rigorous throughput and uptime requirements benefit greatly from these features. With force resolutions to the Milli-Newton range and 100-nm linear encoder resolution, the mechanism provides ultra-smooth action transitions.
Step size and frequency are variable and allow the user to control the desired speed and positioning resolution. The position sensor resolution of the new N-472 actuator is below one nanometer. PiezoMike products simplify the automated adjustment of mechanical and optomechanical components. The motion ranges from 0.3 to 1 in. are standard, as well as vacuum capability.
Specs
Motion and Positioning | V-273.440 / V-273.441 |
---|---|
Active Axes | Z |
Travel Range | 0.8 in. |
Integrated Sensor | Optical linear encoder |
Sensor Resolution | 10 (1) nm |
Min. Incremental Motion | 100 nm |
Linearity Error, Closed-Loop | 1% |
Repeatability | 0.00002 in. (±0.5 µm) |
Velocity | 4 in/s |
Force Sensor Resolution | 1 mN |
Smallest Force Step | 5 mN |
Mechanical Properties | |
Bearing/Guide | Recirculating ball bearing |
Motion Straightness | 0.0008 in. (±20 µm) |
Moved Mass W/O Load | 3.5/8 oz. (100/230 g) |
Drive Properties | |
Motor Type | PIMag voice coil drive, moving coil |
Coil Resistance | 16 Ω |
Coil Inductance | 6 mH |
Time Constant | 0.375 ms |
Back EMF | 8V·s/m |
Force Constant | 8 |
Motor Constant | 2 N/(√W) |
Current Constant | 0.125 A/N |
Nominal Current | 375 (2) mA |
Peak Current | 800 mA |
Avg. Push/Pull Force | 3 N |
Power Dissipation of Coil | 2.25 W |
Max. Push/Pull Force | 6 N |
Permitted Temp. for Actuator Components | 140°F |
Miscellaneous | |
Operating Temp. Range | 50 to 140°F |
Material | Aluminum |
Mass | 1.5/1.7 lb. |
Cable Length | V-273.441: Force sensor cable: 3.2 ft |
Motor/Sensor Connector | V-273.440: D-sub 15 (m) V-273.441: 2 x D-sub 15 (m) |
Lifetime | >107 cycles |