| | | machining, active damping, etc.) and push-pull applications. The ceramic layers in the P-239 and P-245 models are double in number and thinner than those in the P-244, thus providing larger travel ranges. For maximum lifetime, voltages in excess of -750 V should be applied only for short durations. Mounting Mounting is at the foot, although with push/pull forces of less than 5 N, the actuator can be held by clamping the case. The optional ball tip (P-244.95 or P-239.95) is intended to decouple torque and offcenter forces from the translator. For more examples, see page 1-5. High Accuracy in Closed-Loop Operation The standard models are designed for open-loop operation. The factory-installed P-177.10 option of integrated high-resolution SGS-position sensors is recommended for high accuracy through position | | servo-control (for more information, see "Tutorial: Pie-zoelectrics in Positioning," p. 4-31 ff.). Options *: P-177.10 SGS Position Sensors, p. 1-44 (not with P-239.00 / P-239.10) P-702.10 High-temperature option, p. 1-44 P-702.20 Low-temperature option, p. 1-44 P-703.20 High-vacuum option, p. 1-44. P-239.95 Ball tip for P-239, p. 1-44 P-244.95 Ball tip for P-244/P-245, p. 1-44 # To order an actuator with options, change the last digit of the actuator order number to "7" (e.g. P-239.00 to P-239.07) and then list the desired options separately. | | |
| | | P-244 / P-245 and P-239 series translators are high-resolution linear actuators for static and dynamic applications. They provide sub-millisecond response and sub-nanometer resolution. | | Design These actuators consist of a friction-free, preloaded piezo ceramic stack protected by a non-magnetic, stainless steel case. The preload makes these actuators ideal for dynamic applications (e.g. precision | | |