CN204945163U - A kind of acceleration transducer - Google Patents
A kind of acceleration transducer Download PDFInfo
- Publication number
- CN204945163U CN204945163U CN201520629847.6U CN201520629847U CN204945163U CN 204945163 U CN204945163 U CN 204945163U CN 201520629847 U CN201520629847 U CN 201520629847U CN 204945163 U CN204945163 U CN 204945163U
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- CN
- China
- Prior art keywords
- acceleration transducer
- pedestal
- crystal plate
- mass
- piezoelectric crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a kind of acceleration transducer, comprises shell, preloading spring, mass, piezoelectric crystal plate, connecting line, extension line, pedestal, described preloading spring is arranged on mass, and described piezoelectric crystal plate is arranged on the below of mass, and described connecting line is around on piezoelectric crystal plate, described connecting line is connected with extension line, and described piezoelectric crystal plate is arranged on pedestal.Acceleration transducer volume of the present utility model 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 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 acceleration transducer.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of acceleration transducer, comprises shell, preloading spring, mass, piezoelectric crystal plate, connecting line, extension line, pedestal, described preloading spring is arranged on mass, and described piezoelectric crystal plate is arranged on the below of mass, and described connecting line is around on piezoelectric crystal plate, described connecting line is connected with extension line, and described piezoelectric crystal plate is arranged on pedestal.
Preferred as one, described pedestal is provided with fairlead.
Preferred as one, described extension line is drawn out to outside pedestal by fairlead.
Preferred as one, described shell is arranged on pedestal.
Preferred as one, be provided with mounting hole below described pedestal.
Owing to have employed technique scheme, compared with prior art, acceleration transducer volume of the present utility model 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 acceleration transducer of the utility model.
In figure: 1, shell, 2, preloading spring, 3, mass, 4, piezoelectric crystal plate, 5, connecting line, 6, extension line, 7, pedestal, 71, mounting hole, 8, fairlead.
Embodiment
Embodiment:
As shown in Figure 1, for solving the problem, the technical scheme that the utility model adopts is:
A kind of acceleration transducer, comprises shell 1, preloading spring 2, mass 3, piezoelectric crystal plate 4, connecting line 5, extension line 6, pedestal 7, described preloading spring 2 is arranged on mass 3, and described piezoelectric crystal plate 4 is arranged on the below of mass 3, and described connecting line 5 is around on piezoelectric crystal plate 4, described connecting line 5 is connected with extension line 6, and described piezoelectric crystal plate 4 is arranged on pedestal 7.
Further, described pedestal 7 is provided with fairlead 8, and described extension line 6 is drawn out to outside pedestal 7 by fairlead 8.
Further, described shell 1 is arranged on pedestal 7, reaches the dust-proof effect to acceleration transducer by shell 1.
Further, below described pedestal 7, be provided with mounting hole 71, by mounting hole 71, be convenient to the installation of acceleration transducer.
It is the piezoelectric effect work utilizing 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, the dielectric with piezoelectric effect is called piezoelectric, and 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.
Fig. 1 is compression-type acceleration transducer, its sensitive element is piezoelectric crystal plate 4, a mass 3 pressed by crystal wafer, the spring 2 larger by rigidity applies a pretightning force to this mass, and they are splited in a metal shell 1 with thick pedestal 7, when accelerometer be arranged on tested pull that on object, plate moves thereupon time, mass 3 is used on piezoelectric crystal plate 4 with regard to producing a masterpiece being proportional to vibration acceleration, according to direct piezo electric effect, the surface that crystal wafer two is relative just produces the electricity of alternation, its size is directly proportional to acting force, and the quality of mass 3 immobilizes, so electric charge on crystal wafer to pull acceleration and be directly proportional.
Owing to have employed technique scheme, compared with prior art, acceleration transducer volume of the present utility model 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 (5)
1. an acceleration transducer, comprises shell, preloading spring, mass, piezoelectric crystal plate, connecting line, extension line, pedestal, described preloading spring is arranged on mass, and described piezoelectric crystal plate is arranged on the below of mass, and described connecting line is around on piezoelectric crystal plate, described connecting line is connected with extension line, and described piezoelectric crystal plate is arranged on pedestal.
2. acceleration transducer as claimed in claim 1, is characterized in that: described pedestal is provided with fairlead.
3. acceleration transducer as claimed in claim 2, is characterized in that: described extension line is drawn out to outside pedestal by fairlead.
4. acceleration transducer as claimed in claim 1, is characterized in that: described shell is arranged on pedestal.
5. acceleration transducer as claimed in claim 1, is characterized in that: be provided with mounting hole below described pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629847.6U CN204945163U (en) | 2015-08-19 | 2015-08-19 | A kind of acceleration transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629847.6U CN204945163U (en) | 2015-08-19 | 2015-08-19 | A kind of acceleration transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945163U true CN204945163U (en) | 2016-01-06 |
Family
ID=55012576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520629847.6U Expired - Fee Related CN204945163U (en) | 2015-08-19 | 2015-08-19 | A kind of acceleration transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508235A (en) * | 2018-04-20 | 2018-09-07 | 西人马（厦门）科技有限公司 | A kind of piezoelectric acceleration sensor |
| CN110441549A (en) * | 2019-08-19 | 2019-11-12 | 芜湖天波光电技术研究院有限公司 | A kind of high-temperature vibrating sensor |
-
2015
- 2015-08-19 CN CN201520629847.6U patent/CN204945163U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508235A (en) * | 2018-04-20 | 2018-09-07 | 西人马（厦门）科技有限公司 | A kind of piezoelectric acceleration sensor |
| WO2019200634A1 (en) * | 2018-04-20 | 2019-10-24 | 西人马联合测控（泉州）科技有限公司 | Piezoelectric acceleration sensor |
| US10983140B2 (en) | 2018-04-20 | 2021-04-20 | Fatri United Testing & Control (Quanzhou) Technologies Co., Ltd. | Piezoelectric acceleration sensor |
| CN110441549A (en) * | 2019-08-19 | 2019-11-12 | 芜湖天波光电技术研究院有限公司 | A kind of high-temperature vibrating 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: 20170819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |