Effect of Polarization Temperature on Piezoelectric Properties(二)

During the sintering process, it was found that the piezo ceramic sheets are fired at temperatures above 1250°C and holding time longer than 2 h were prone to breakdown during polarization, resulting in the increase of the number of lobes. Because the higher mechanical transducer piezo is the firing temperature, the holding time of electrical hifu ultrasound piezo generally results in severe recrystallization, so that smaller grains become large grains, which often results in increased porosities of the piezo ceramic and a decrease in the density of the piezo ceramic for liposonix slimming , So that its mechanical strength and dielectric constant of piezo bimorph actuator decreased, while reducing the mechanical quality ceramic. When the handover arrives, the handover is authenticated. If successful, the resources assigned in the preparation phase are handed over to the protocol access module and a call is initiated to the call control. At this moment, the call control considers this call as a normal terminal call into.When the protocol of piezo ultrasonic resonator access module reports to the HOM that the terminal has actually accessed the message, the handover can be considered as a steady state. If the terminal entering the handover requires other handover, such as internal handover or subsequent handover, it may be completed according to the function description of the HO. Has nothing to do with H T. It is necessary to point out that the two ends of the pickup piezo transducer,which are completely irrelevant to the two ends of the called OT. The T end and the O end of the call may both be the O-end of the handover or the T end of the handover. After the GSM and UMTS handover study found that if the mobile softswitch to GSM and UMTS handover, both in the signaling process and media control has many similarities, especially BSSA P and RANAP handover messages.