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AE1010D16DF Datasheet(PDF) 8 Page - Kemet Corporation |
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AE1010D16DF Datasheet(HTML) 8 Page - Kemet Corporation |
8 / 13 page 8 © KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com P0101_AE • 4/6/2016 Multilayer Piezoelectric Actuators – AE Series Resin Coated User’s Guide Fixing Method • Carefully prevent the piezoelectric actuators from being bent, twisted or applied tensile force. Reference: Twisting and Tension Tolerance Reference Value Remarks Twisting Force 3 × 10-1 N • m or less For an actuator which generates a force of 800 N (compression resistance). Tension 50 N or less • Install the actuator so that the center axis of the generated displacement is aligned with the center axis of the load. • Epoxy-based adhesives are recommended for bonding. Select adhesives that have high rigidity and allow for medium thickness so that the generation force and displacement cannot be deteriorated. Also, do not form adhesives on the side of the actuator. • When thermosetting resin is used, perform polarizing treatment (see caution section) after the adhesive is settled. • The resin coated type is weak to the tensile force due to its structure and may be broken when tensile forces are applied onto the device. Using the device in the state that constantly applies compression is effective against any mechanical damage. The pressure applied to this element should be kept at 20% to 50% of the force generated by this element (compression resistance). • Install the element so that the axis of generated displacement is vertical to the mounting surface. ●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data. ●Please request for a specification sheet for detailed product data prior to the purchase. ●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog. 2015.02.06 9470MPAVOL08E1501H1 Fixing Method: ● Carefully prevent the piezo actuators from being bent, being twisted, or being applied tensile force. Reference: Guide for tolerance of twisting and tension Reference value Remarks Twisting force 3×10-1N・m or less For an actuator which generates a force of 800 N (compression resistance) Tension 50 N or less ● Install the actuator so that the center axis of generated displacement is aligned with the center axis of the load. a. Resin-coated type • Epoxy-based adhesives are recommended for bonding. Select adhesives that have high rigidity and allow minimum thickness so that the generation force and displacement cannot be deteriorated. Also do not form adhesives at the side of actuator. • When thermosetting resin is used, perform polarizing treatment(see the caution section)again after the adhesive is settled. • The resin-coated type is weak to tensile force because of its structure and may be broken when tensile force is applied onto the device. Using the device in the state that constantly applies compression is effective against any mechanical damage. The pressure applied to this element should be kept at 20 to 50% of the force generated by this element(compression resistance). • Install the element so that the axis of generated displacement is vertical to the mounting surface. b. Metal sealed type • Select the mounting bracket(female thread type or flange type)according to the mounting method, and install the element utilizing the bracket. • Fix the element securely so that the generated force and displacement cannot be deteriorated. • Connect the driven item at the displacement generating end after securing the mounting portion so that it avoids unnecessary stress applied at the time of installation. • Though this product is designed to apply a compressive force to the internal element by the metal case, avoid any usages that cause bending, twisting, or tension force when the device is in use Example of Actuator mounting: Guide to Use Driving Method: ● Connect the red lead wire to the positive(+)terminal of the power supply. Also prevent reverse voltage application. ● Basically the voltage controls the aimed displacement and generated force. In driving, however, it is also necessary to take ringing due to the resonance or hysteresis of the element itself into consideration. In pulse driving, it is further necessary to pay sufficient attention to heat generation due to dielectric loss, charge/discharge current due to the capacitive component and the power output impedance as well. Please refer to the separately printed literature, “NEC TOKIN Multilayer Piezoelectric Actuators User’s Manual” Spherical surface Hinge Piezo Actuator Piezo Actuator Moving part or load Only one side is touching the actuator. (Stress is concentrated on one edge and generates share mode stress) The actuator may break. Piezo Actuator Piezo Actuator Piezo Actuator Piezo Actuator a) Example of wrong mounting Imperfect alignment between actuator and load <Actuator will be broken> b) Example of correct mounting Mount the device so that the load is uniformly applied by the spherical surface or the hinge Moving part or load 24 Multilayer Piezoelectric Actuators Vol.08 Driving Method • Connect the red lead wire to the positive (+) terminal of the power supply. Also prevent reverse voltage application. • In driving applications, it is necessary to take consideration of hysteresis, ringing, creep, and other similar phenomenons. For pulse driving, it is also necessary to be aware of self-heat generation, charge/discharge current, and the power supply’s impedance. |
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