Method for processing piezoelectric ceramic sheets

Abstract

The invention discloses a method for processing piezoelectric ceramic sheets, and belongs to the technical field of underwater acoustic transducer production. The method comprises the steps of laminating the piezoelectric ceramic sheets in the same group according to polarity orienting requirements; conducting group numbering on the side faces of the laminated piezoelectric ceramic sheets laminated in each group with an oily mark pen and covering the side faces of all the piezoelectric ceramic sheets in the whole group with grouping numbers of the piezoelectric ceramic sheets laminated in eachgroup from top to bottom, wherein the grouping numbers of the piezoelectric ceramic sheets laminated in each group are different. The side faces of the laminated piezoelectric ceramic sheets in eachgroup are subjected to group numbering with the oily mark pen, so that the reliability of polarity marking of the piezoelectric ceramic sheets and grouping pairing is greatly improved, and the polarity and the grouping pairing identification cannot be disordered due to later processing steps in the process; the steps of the polarity identification and grouping pairing of the piezoelectric ceramicsheets are combined into one step, and the efficiency of the process of processing piezoelectric ceramic is improved.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic transducer production, and relates to a method for processing piezoelectric ceramic sheets. Background technique [0002] In the production and assembly process of underwater acoustic transducers, piezoelectric ceramic sheets need to be processed in multiple steps. The specific process is as follows: Determine polarity: Use a quasi-static d33 tester to determine the polarity of the positive and negative electrodes of piezoelectric ceramics; Polarity identification: mark the red dot on the surface of the piezoelectric ceramic or mark the red dot on the side of the piezoelectric ceramic; label: use a pencil to number the surface of the piezoelectric ceramic sheet; capacitance measurement: use a multimeter to measure the capacitance of the piezoelectric ceramic sheet; group pairing: Piezoelectric ceramic sheets are grouped and paired according to their capacitance; surface treatment: surf...

AI Technical Summary

Problems solved by technology

However, due to subsequent steps such as surface treatment, the piezoelectric ceramic sheets will undergo multiple position movements, and the positional relationship between them is easily disrupted, resulting in confusion in the pairing relationship.

[0005] The defects in the above two process steps have seriously affected the efficiency and reliability of the piezoelectric ceramic processing process, and will further have a serious impact on the reliability of the transducer

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