“The resulting [barium titanate (BTO)] parts are polarized using a poling field of 10 kV/cm, a poling time of 50 min, and a poling temperature of 60 °C, which yields a piezoelectric device with a high #piezoelectric constant of 211 pC/N.” #manufacturing #paper #toread #electronics
on 02026-05-27more about poling #piezoelectric ceramics in #electronics #manufacturing, this time from COMSOL, which is maybe a more disinterested source. But, unlike the American Piezo piece, it doesn’t actually explain what you do to pole them.
on 02026-04-10how #piezoelectric ceramics are “poled” in #electronics #manufacturing. “The poling process itself involves applying a high DC electric field to the components for a specific length of time while the part is held at a given temperature. Typical DC voltages are on the order of 2000 volts per mm of component thickness. The effect of elevated temperature, usually resulting from performing the poling process in a heated dielectric fluid bath, is to make it easier to “switch or align” the domains.”
on 02026-04-10#video on #precision #piezoelectric motors
on 02025-03-25#PDF catalog of #piezoelectric actuator hardware and guide to its use
on 02017-07-11dude got 65dBa out of #piezoelectric sounder #hardware with 1.5Vpp, so he dead-bugged and hot-glue-potted a PAM8904 driver
on 02017-05-19#paper on #sintering #piezoelectric #ceramics #materials at lower temperatures using lead oxide as a sort of flux or binder
on 02017-03-02#piezoelectric vs. #magnetostrictive #hardware for #ultrasound #transducers; by a vendor of the piezo type
on 02017-03-02