CN204945164U - A kind of piezoelectric acceleration transducer - Google Patents
A kind of piezoelectric acceleration transducer Download PDFInfo
- Publication number
- CN204945164U CN204945164U CN201520642350.8U CN201520642350U CN204945164U CN 204945164 U CN204945164 U CN 204945164U CN 201520642350 U CN201520642350 U CN 201520642350U CN 204945164 U CN204945164 U CN 204945164U
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- mass
- piezoelectric
- pedestal
- acceleration transducer
- compressed spring
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Abstract
The utility model relates to a kind of piezoelectric acceleration transducer, comprises piezoelectric element, mass, pre-compressed spring, pedestal, shell, bolt, described mass is in the below of pre-compressed spring, described piezoelectric element in the below of mass, described bolt by piezoelectric element, mass, pre-compressed spring is locked on pedestal, and described jacket is on pedestal.Piezoelectric acceleration transducer of the present utility model, volume is little, quality is light, sturdy construction, bandwidth, highly sensitive, measurement range is wide, is therefore most widely used.The stability of piezoelectric accelerometer is better, in vibration measurement, often uses as standard accelerometer.
Description
Technical field
The utility model relates to a kind of piezoelectric acceleration transducer.
Background technology
Acceleration transducer be a kind of can acceleration measurement the acceleration experienced is converted to the electronic equipment of signal, existing acceleration transducer is widely used the Automated condtrol with electronic product, the field such as radio alarming and security monitoring, existing acceleration transducer is general all by microprocessor, analog-digital converter, accelerometer, the some other peripheral components composition of power management core one-level, the complexity of whole circuit design is higher, size during each composition is larger, therefore, the circuit board printed by technique scheme is also general larger, cost is relatively high.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of piezoelectric acceleration transducer.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of piezoelectric acceleration transducer, comprises piezoelectric element, mass, pre-compressed spring, pedestal, shell, bolt, described mass is in the below of pre-compressed spring, described piezoelectric element in the below of mass, described bolt by piezoelectric element, mass, pre-compressed spring is locked on pedestal, and described jacket is on pedestal.
Preferred as one, described pedestal both sides are provided with cooperation rail.
Preferred as one, described shell is plastic material.
Preferred as one, described mass is tungalloy material.
Owing to have employed technique scheme, compared with prior art, piezoelectric acceleration transducer of the present utility model, volume is little, quality is light, sturdy construction, bandwidth, highly sensitive, measurement range is wide, is therefore most widely used.The stability of piezoelectric accelerometer is better, in vibration measurement, often uses as standard accelerometer.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail simultaneously.
Accompanying drawing explanation
Fig. 1 is the cut-open view of a kind of piezoelectric acceleration transducer of the utility model.
In figure: 1, piezoelectric element, 2, mass, 3, pre-compressed spring, 4, pedestal, 41, coordinate rail, 5, shell, 6, bolt.
Embodiment
Embodiment:
As shown in Figure 1, for solving the problem, the technical scheme that the utility model adopts is:
A kind of piezoelectric acceleration transducer, comprises piezoelectric element 1, mass 2, pre-compressed spring 3, pedestal 4, shell 5, bolt 6, described mass 2 is in the below of pre-compressed spring 3, described piezoelectric element 1 in the below of mass 2, described bolt 6 by piezoelectric element 1, mass 2, pre-compressed spring 3 is locked on pedestal 4, and described shell 5 covers on pedestal 4.
Further, described pedestal 4 both sides are provided with and coordinate rail 41, by coordinating rail 41 to be fastened on testee by pedestal 4, ensure that being rigidly connected of pedestal 4 and testee.
Further, described shell 5 is plastic material, and by shell 5 is set to the weight that plastic material not only reduces sensor, notice also reaches the effect of insulation.
Further, described mass 2 is tungalloy material, is loaded mass 2 by the effect of pre-compressed spring 3, produces precompression, to ensure that piezoelectric element 1 is compressed all the time when acting force changes.。
Whole parts are contained in shell 5, and are fixed by bolt 6.Mass 2 is made up of the material heavy metal that volume mass is larger.The effect of pre-compressed spring 3 loads mass 2, produces precompression, to ensure that piezoelectric element 1 is compressed all the time when acting force changes.Whole assembly is all contained on pedestal 4.Produce glitch to prevent any strain of measured piece from passing on piezoelectric element 1, pedestal General Requirements does thicker, and together with pedestal rigidly fixes with testee.
It is utilize the piezoelectric effect work of piezoelectric, so-called piezoelectric effect, refer to some dielectric, when it is subject to mechanical external force effect in a certain direction and is out of shape, its inside will generating electrodes, thus causes the electric charge that equal and opposite in direction, symbol are contrary appears in dielectric two apparent surfaces.When external force direction changes, also the change size of its quantity of electric charge of the polarity of electric charge is directly proportional to external force.After external force is removed, dielectric recovers again not electriferous state, and this phenomenon is called direct piezo electric effect.Conversely, when on polarization of dielectric direction during extra electric field, it will produce distortion, and this phenomenon is called inverse piezoelectricity effect.Piezoelectric accelerometer utilizes direct piezo electric effect work, has the dielectric of piezoelectric effect and be called piezoelectric, at occurring in nature, the material with piezoelectric effect is a lot, but effect is very faint altogether for great majority, only has minority such as quartz crystal, piezoelectric ceramics etc. just to have stronger piezoelectric effect.
Owing to have employed technique scheme, compared with prior art, piezoelectric acceleration transducer of the present utility model, volume is little, quality is light, sturdy construction, bandwidth, highly sensitive, measurement range is wide, is therefore most widely used.The stability of piezoelectric accelerometer is better, in vibration measurement, often uses as standard accelerometer.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present utility model, and every have identical or akin technical scheme with the utility model, all belongs to protection domain of the present utility model.
Claims (4)
1. a piezoelectric acceleration transducer, comprises piezoelectric element, mass, pre-compressed spring, pedestal, shell, bolt, described mass is in the below of pre-compressed spring, described piezoelectric element in the below of mass, described bolt by piezoelectric element, mass, pre-compressed spring is locked on pedestal, and described jacket is on pedestal.
2. piezoelectric acceleration transducer as claimed in claim 1, is characterized in that: described pedestal both sides are provided with cooperation rail.
3. piezoelectric acceleration transducer as claimed in claim 1, is characterized in that: described shell is plastic material.
4. piezoelectric acceleration transducer as claimed in claim 1, is characterized in that: described mass is tungalloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642350.8U CN204945164U (en) | 2015-08-24 | 2015-08-24 | A kind of piezoelectric acceleration transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642350.8U CN204945164U (en) | 2015-08-24 | 2015-08-24 | A kind of piezoelectric acceleration transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945164U true CN204945164U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520642350.8U Expired - Fee Related CN204945164U (en) | 2015-08-24 | 2015-08-24 | A kind of piezoelectric acceleration transducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204945164U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950393A (en) * | 2016-10-31 | 2017-07-14 | 湖北文理学院 | A kind of ultrahigh speed rotation-speed measuring device based on piezoelectric transducer |
| CN107102160A (en) * | 2017-05-27 | 2017-08-29 | 天府认证有限公司 | The acceleration transducer protected with thermoelectricity |
| CN107167631A (en) * | 2017-06-07 | 2017-09-15 | 西人马（厦门）科技有限公司 | Electric charge output element and annular shearing piezoelectric acceleration sensor |
| CN109509830A (en) * | 2018-10-09 | 2019-03-22 | 佛山市卓膜科技有限公司 | A kind of piezoelectric transducer |
| CN109991440A (en) * | 2017-12-30 | 2019-07-09 | 大连良华科技有限公司 | A kind of piezoelectric acceleration transducer |
| CN110702935A (en) * | 2019-10-17 | 2020-01-17 | 上海芯立电子科技有限公司 | High-sensitivity sensor |
| CN112155584A (en) * | 2020-10-23 | 2021-01-01 | 广州中医药大学第一附属医院 | Individual image positioning diagnosis system for temporal lobe epilepsy-induced focus |
| CN114894350A (en) * | 2022-05-11 | 2022-08-12 | 江苏振宁半导体研究院有限公司 | High-performance piezoelectric strain sensor |
-
2015
- 2015-08-24 CN CN201520642350.8U patent/CN204945164U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950393A (en) * | 2016-10-31 | 2017-07-14 | 湖北文理学院 | A kind of ultrahigh speed rotation-speed measuring device based on piezoelectric transducer |
| CN107102160A (en) * | 2017-05-27 | 2017-08-29 | 天府认证有限公司 | The acceleration transducer protected with thermoelectricity |
| CN107167631A (en) * | 2017-06-07 | 2017-09-15 | 西人马（厦门）科技有限公司 | Electric charge output element and annular shearing piezoelectric acceleration sensor |
| CN109991440A (en) * | 2017-12-30 | 2019-07-09 | 大连良华科技有限公司 | A kind of piezoelectric acceleration transducer |
| CN109509830A (en) * | 2018-10-09 | 2019-03-22 | 佛山市卓膜科技有限公司 | A kind of piezoelectric transducer |
| CN110702935A (en) * | 2019-10-17 | 2020-01-17 | 上海芯立电子科技有限公司 | High-sensitivity sensor |
| CN112155584A (en) * | 2020-10-23 | 2021-01-01 | 广州中医药大学第一附属医院 | Individual image positioning diagnosis system for temporal lobe epilepsy-induced focus |
| CN114894350A (en) * | 2022-05-11 | 2022-08-12 | 江苏振宁半导体研究院有限公司 | High-performance piezoelectric strain sensor |
| CN114894350B (en) * | 2022-05-11 | 2024-01-26 | 江苏振宁半导体研究院有限公司 | High-performance piezoelectric strain sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Taoyuan Street Pingshan private science and Technology Park 3 Building 2 floor East Patentee after: Shenzhen Huapu Microelectronics Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Taoyuan Street Pingshan private science and Technology Park 3 Building 2 floor East Patentee before: HOPE MICROELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20170824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |