CN203668249U - PZT piezoelectric ceramic slice high-voltage polarization device - Google Patents
PZT piezoelectric ceramic slice high-voltage polarization device Download PDFInfo
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- CN203668249U CN203668249U CN201420040477.8U CN201420040477U CN203668249U CN 203668249 U CN203668249 U CN 203668249U CN 201420040477 U CN201420040477 U CN 201420040477U CN 203668249 U CN203668249 U CN 203668249U
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Abstract
The utility model discloses a PZT piezoelectric ceramic slice high-voltage polarization device which comprises at least one group of PZT piezoelectric ceramic slices. Two ends of the PZT piezoelectric ceramic slices are respectively connected with wires, the adjacent PZT piezoelectric ceramic slices are in parallel connection with each other, the wires are respectively connected with a positive pole and a negative pole of a direct-current high-voltage power supply, and a resistor is arranged between the wires and the direct-current high-voltage power supply. The PZT piezoelectric ceramic slice high-voltage polarization device can prevent the ceramic slices from undergoing breakdown in the polarization process, and the finished product rate of the ceramic slices is improved.
Description
Technical field
The utility model relates to a kind of PZT piezoelectric ceramic piece high-voltage polarization device.
Background technology
PZT (Pb-based lanthanumdoped zirconate titanates) is most widely used piezoceramic material at present, and PZT piezoelectric ceramics has direct piezoelectric effect and inverse piezoelectric effect, and so-called direct piezoelectric effect is under extraneous stress, and surface produces electric charge; Inverse piezoelectric effect is under DC Electric Field, and certain orientation produces mechanical deformation or mechanical pressure.
Different from general ceramic making process, the oxide compound of PZT zirconium, titanium, lead for piezoelectric ceramics is prepared after sintering forms also needs DC high voltage polarization to process.Due to PZT piezoelectric ceramics electricdomain random orientation, wherein electricdomain is to have spontaneous polarization in the crystal of spontaneous polarization to be orientated consistent tiny area, therefore piezoelectric ceramics does not present piezoelectricity, only have by polarization and process and make electricdomain just show piezoelectricity after a specific direction polarization, polarization condition difference, degree of polarization is just different, and the performance index of material are also just different.
Therefore, in batch production and use PZT piezoelectric ceramics, all must carry out DC high voltage polarization processes, polarized piezoelectric ceramic sheet and polarized electric field is required when high, due to problems such as the material of piezoelectric ceramic thin sheet own are loose, partial sheet is held and be can't stand that high-voltage is and breakdown, and the PZT ceramic sheet after puncturing cannot use.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of PZT piezoelectric ceramic piece high-voltage polarization device, to reach the object that improves PZT ceramic sheet yield rate.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of PZT piezoelectric ceramic thin sheet high-voltage polarization device, comprises at least one group of PZT piezoelectric ceramic thin sheet, and described PZT piezoelectric ceramic thin sheet two ends are connected with wire respectively, and adjacent described PZT piezoelectric ceramic thin sheet is parallel with one another; Described wire is connected with DC high-voltage power supply positive pole, negative pole respectively, between described wire and described DC high-voltage power supply, is provided with resistance.
Pass through technique scheme, a kind of PZT piezoelectric ceramic thin sheet high-voltage polarization device that the utility model provides, due to the front end of the high-voltage power supply output Mei road load resistance of having connected, limit electric current, kept the static high-voltage of needs simultaneously, reduce power, can not puncture PZT ceramic sheet; Strength of electric field does not change, and therefore polarization effect is identical.The utility model can prevent that in polarization process, ceramic sheet is breakdown, improves the yield rate of ceramic sheet.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.
Fig. 1 is the schematic diagram of the disclosed a kind of PZT piezoelectric ceramic thin sheet high-voltage polarization device of the utility model embodiment.
Numeral in figure:
1, ceramic sheet 2, DC high-voltage power supply 3, series resistance
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
With reference to figure 1, the utility model provides a kind of PZT piezoelectric ceramic thin sheet high-voltage polarization device, comprise seven groups of PZT piezoelectric ceramic thin sheets, every group comprises 11 PZT piezoelectric ceramic thin sheets 1, the two ends of each PZT piezoelectric ceramic thin sheet are connected with wire respectively, and adjacent PZT piezoelectric ceramic thin sheet is in relation in parallel; Wire is connected with DC high-voltage power supply 2 positive poles, negative pole respectively, is provided with resistance 3 between wire and DC high-voltage power supply.
For the polarization in batches of PZT piezoelectric ceramic thin sheet, the density of material that PZT ceramic sheet is every loosens all different with inner bubble situation, in the time polarizing in batches, wherein there is a slice be unable to undergo DC high voltage and puncture, cause short circuit, high-voltage power supply is closed automatically, and whole dish ceramic sheet cannot be proceeded polarization.Only find out after the ceramic plate puncturing is also known and adding insulating trip, could repolarization.When polarization, while requiring high or PZT ceramic sheet consistence not high to strength of electric field, high-voltage breakdown probability 5-15% when polarization (ceramic plate thickness 0.3mm, when volts DS is greater than 1kv), the PZT ceramic sheet puncturing cannot use.
According to various technique, high-tension requirement is selected to resistance, at a resistance of front end series connection of output Mei road load, make the load power after resistance be less than 0.5W, electric current is less than 2mA, can ensure that like this PZT ceramic sheet is not breakdown.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of above-described embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. a PZT piezoelectric ceramic thin sheet high-voltage polarization device, is characterized in that, comprises at least one group of PZT piezoelectric ceramic thin sheet, and described PZT piezoelectric ceramic thin sheet two ends are connected with wire respectively, and adjacent described PZT piezoelectric ceramic thin sheet is parallel with one another; Described wire is connected with DC high-voltage power supply positive pole, negative pole respectively, between described wire and described DC high-voltage power supply, is provided with resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040477.8U CN203668249U (en) | 2014-01-22 | 2014-01-22 | PZT piezoelectric ceramic slice high-voltage polarization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040477.8U CN203668249U (en) | 2014-01-22 | 2014-01-22 | PZT piezoelectric ceramic slice high-voltage polarization device |
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| Publication Number | Publication Date |
|---|---|
| CN203668249U true CN203668249U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040477.8U Expired - Fee Related CN203668249U (en) | 2014-01-22 | 2014-01-22 | PZT piezoelectric ceramic slice high-voltage polarization device |
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| CN (1) | CN203668249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342358A (en) * | 2017-07-26 | 2017-11-10 | 电子科技大学 | A kind of organic ferroelectric thin film polarization device |
-
2014
- 2014-01-22 CN CN201420040477.8U patent/CN203668249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342358A (en) * | 2017-07-26 | 2017-11-10 | 电子科技大学 | A kind of organic ferroelectric thin film polarization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |