CN202340207U - Piezoelectric ceramic frequency discriminator - Google Patents
Piezoelectric ceramic frequency discriminator Download PDFInfo
- Publication number
- CN202340207U CN202340207U CN2011204260813U CN201120426081U CN202340207U CN 202340207 U CN202340207 U CN 202340207U CN 2011204260813 U CN2011204260813 U CN 2011204260813U CN 201120426081 U CN201120426081 U CN 201120426081U CN 202340207 U CN202340207 U CN 202340207U
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- frequency discriminator
- piezoelectric ceramic
- electrode
- diameter
- frequency
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Abstract
The utility model relates to a piezoelectric ceramic frequency discriminator, belongs to the technical field of electronic components and particularly relates to a piezoelectric ceramic frequency discriminator of 10.7 M level and applied to a high-frequency head. The piezoelectric ceramic frequency discriminator comprises a piezoelectric vibrator chip, electrodes and wax points, wherein the electrodes are formed on the piezoelectric vibrator chip, the wax points are covered on the electrodes and have the diameter of 1.1 plus/minus 0.2 mm, and the electrodes comprise a large electrode of 0.9 mm diameter and a small electrode of 0.88 mm diameter. Compared with the prior art, the waveform uniformity of the frequency discriminator is improved effectively to eliminate clutters, turning points or indentions at the applied site of the frequency discriminator in the high-frequency head, and the overall electrical property of the frequency discriminator is improved, so that the performance of the frequency discriminator applied to the high-frequency head is greatly improved.
Description
Technical field
The utility model relates to a kind of piezoelectric ceramic discriminator, relates to a kind of piezoelectric ceramic discriminator that is applied on the tuner specifically, belongs to technical field of electronic components.
Background technology
In the prior art, piezoelectric ceramic discriminator is widely used in broadcast receiver, TV, vehicle audio, the tuner.But has following defective: in the application of tuner; About 20% product can cause waveform generation clutter, the flex point at the place of being used and subsides in the common frequency discriminator; The distortion factor and output amplitude (waveform is as shown in Figure 1) bigger than normal have brought very big trouble for client's use.
Can therefore, design a kind of novel piezoelectric ceramic discriminator to overcome above-mentioned defective, be the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
The utility model aims to provide a kind of novel serial piezoelectric ceramic discriminator of 10.7M, and it has overcome the defective of existing piezoelectric ceramic discriminator through special structure design, has improved the consistency of frequency discriminator waveform.
Its technical scheme that adopts is following: this piezoelectric ceramic discriminator comprises piezoelectric vibrator chip, electrode and wax point, and wherein, electrode is formed on the piezoelectric vibrator chip, and the wax point covers above the electrode, and its diameter is 1.1 ± 0.2mm; And electrode comprises that diameter is that large electrode and the diameter of 0.9mm is the small electrode of 0.88mm.
Compared with prior art, the utlity model has following advantage:
The piezoelectric ceramic discriminator overall performance electrical performance improves, and covers the wax point above the electrode, has improved the consistency of frequency discriminator waveform, makes the waveform of frequency discriminator at the place of being used not have clutter, flex point, subside.
Description of drawings
Fig. 1: frequency discriminator of the prior art is used the oscillogram at place.
Fig. 2: the large electrode sketch map in the utility model.
Fig. 3: the small electrode sketch map in the utility model.
Fig. 4: the wax point sketch map in the utility model.
Fig. 5: the utility model is used the oscillogram at place.
Embodiment
Below in conjunction with accompanying drawing and instance the utility model is described further.
An embodiment of the utility model is shown in Fig. 2-4; This piezoelectric ceramic discriminator comprises: piezoelectric vibrator chip, electrode and wax point, and wherein, electrode is formed on the piezoelectric vibrator chip; The wax point covers above the electrode, and its diameter is 1.1 ± 0.2mm (as shown in Figure 4); And electrode comprises that diameter is the large electrode (as shown in Figure 2) of 0.9mm and the small electrode (as shown in Figure 3) that diameter is 0.88mm.
The manufacturing process of this piezoelectric ceramic discriminator is summarized as follows: on piezoelectric vibrator chip top layer, form large electrode and small electrode as required, and large electrode diameter 0.9mm, small electrode diameter 0.88mm, on electrode, forming diameter again is the wax point of 1.1 ± 0.2mm.
Through evidence: this product has improved the consistency of frequency discriminator waveform, makes that frequency discriminator does not have clutter, flex point at the waveform place that is used by tuner, subside (waveform is as shown in Figure 5); Improved the whole electrical property of frequency discriminator, the performance that frequency discriminator is applied on the tuner is greatly improved.
With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes done based on the utility model or modification all belong to the utility model and require the scope protected.
Claims (1)
1. a piezoelectric ceramic discriminator is characterized in that, comprising: piezoelectric vibrator chip, electrode and wax point, and wherein, said electrode is formed on the said piezoelectric vibrator chip, and said wax point covers above the said electrode, and its diameter is 1.1 ± 0.2mm; And said electrode comprises that diameter is that large electrode and the diameter of 0.9mm is the small electrode of 0.88mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260813U CN202340207U (en) | 2011-11-01 | 2011-11-01 | Piezoelectric ceramic frequency discriminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260813U CN202340207U (en) | 2011-11-01 | 2011-11-01 | Piezoelectric ceramic frequency discriminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202340207U true CN202340207U (en) | 2012-07-18 |
Family
ID=46488893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204260813U Expired - Fee Related CN202340207U (en) | 2011-11-01 | 2011-11-01 | Piezoelectric ceramic frequency discriminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202340207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727928A (en) * | 2017-09-20 | 2018-02-23 | 戴承萍 | A kind of data signal frequency discriminator and its application method |
-
2011
- 2011-11-01 CN CN2011204260813U patent/CN202340207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727928A (en) * | 2017-09-20 | 2018-02-23 | 戴承萍 | A kind of data signal frequency discriminator and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20121101 |