CN203133108U - Piezoelectric accelerometer - Google Patents
Piezoelectric accelerometer Download PDFInfo
- Publication number
- CN203133108U CN203133108U CN 201320164913 CN201320164913U CN203133108U CN 203133108 U CN203133108 U CN 203133108U CN 201320164913 CN201320164913 CN 201320164913 CN 201320164913 U CN201320164913 U CN 201320164913U CN 203133108 U CN203133108 U CN 203133108U
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- piezoelectric device
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Abstract
A piezoelectric accelerometer is characterized in that: the piezoelectric accelerometer is horizontal and comprises a housing, a bracket, a piezoelectric device, a mass block, a shielding cover and a connector; the top end of the housing is provided with a threaded through hole and a sinking hole; the piezoelectric device, the mass block, the bracket and the shielding cover are provided in the sinking hole; the piezoelectric device is sleeved on a central shaft of the bracket; the mass block is sleeved on the piezoelectric device; the piezoelectric device, the mass block and the bracket are provided in the shielding cover; the upper end of the sinking hole is provided with a lid; the bottom of the bracket is provided with an insulating sheet; and the connector is welded at the side surface of the housing. According to the piezoelectric accelerometer with the structure, a bolt is mounted through the through hole; the vertical threaded hole is convenient to machine; verticality between the vertical threaded hole and the base can be easily controlled, thereby ensuring consistence between a sensitive axis of the piezoelectric device and the axis of the sensor, and reducing transverse sensitivity. After the sensor is detached, the bolt is still screwed on the sensor, and mounting component loss does not easily occur. Side-surface wire outlet is adopted for the sensor, thereby facilitating mounting and connection.
Description
Technical field
The utility model relates to the acceleration transducer field, refers in particular to a kind of piezoelectric acceleration transducer.
Background technology
Acceleration transducer is the testing tool that pressure that physical phenomenons such as degree of will speed up, vibrations, impact produce is transformed into the electric signal of being convenient to measure, piezoelectric acceleration sensor is to be conversion element with the piezoelectric, electric charge or voltage device that output is directly proportional with acceleration, because piezoelectric sensor has series of advantages such as simple in structure, that workpiece is reliable, has become widely used a kind of sensor in the impact shock measuring technology at present.
There are some limitation in traditional piezoelectric acceleration transducer in structural design, production technology and the mode that occurs, for example usually with shell and pedestal separate machined, in the sensor production process, again it is welded together, the extension line design is at the top of sensor, adopt screw installation etc., these limitation not only increase the production operation, also are unfavorable for installing and using of product.
The utility model content
The utility model has solved the appeal technical matters, and a kind of piezoelectric acceleration transducer is provided.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of piezoelectric acceleration transducer, it is characterized in that: described piezoelectric acceleration transducer is horizontal, comprise shell, support, piezoelectric device, mass, radome, connector, the shell top is provided with a tapped through hole and a counterbore, piezoelectric device, mass, support and radome are in counterbore, piezoelectric device is enclosed within on the central shaft of support, mass is enclosed within on the piezoelectric device, piezoelectric device, mass and support are in radome, described counterbore upper end is provided with a lid, and described frame bottom is equipped with insulating trip, and connector is welded on the side of shell.
Further, described piezoelectric acceleration transducer also comprises a circuit board, and circuit board is installed on the piezoelectric device, places in the radome.
Adopt the beneficial effects of the utility model:
1, sensor adopts bolt to pass the tapped through hole installation, vertically tapped through hole is convenient to processing, be easy to control the verticality with pedestal, thereby the sensitive axes (electrode to) of guaranteeing piezoelectric element and sensor axis (stressed to) are consistent, reduce cross sensitivity, after the sensor dismounting, bolt still is screwed on the sensor, is difficult for causing the installation accessory to lose;
2, this sensor adopts the side outlet, is convenient to install connect;
3, pedestal and shell are integrated, and need not welding, reduce the sensor production operation.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the cut-open view of the utility model structure;
Fig. 2 is the cut-open view of another example structure of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
A kind of piezoelectric acceleration transducer of Fig. 1, it is characterized in that: described piezoelectric acceleration transducer is horizontal, comprise shell 1, support 2, piezoelectric device 3, mass 4, radome 5, connector 6, shell 1 top is provided with a tapped through hole 12 and a counterbore 11, piezoelectric device 3, mass 4, support 2 and radome 5 are in counterbore 11, piezoelectric device 3 is enclosed within on the central shaft of support 2, mass 4 is enclosed within on the piezoelectric device 3, piezoelectric device 3, mass 4 and support 2 are in radome 5, described counterbore 11 upper ends are provided with a lid 8, insulating trip 7 is equipped with in described support 2 bottoms, and connector 6 is welded on the side of shell 1.Piezoelectric acceleration transducer uses securing member to be fixed on the detection position by tapped through hole 12, shock transfer is given this sensor, the inertial force of mass 4 forces piezoelectric device 3 to produce electric charges, is transferred to computing machine through connector 6 and the coaxial stube cable of low noise and does subsequent treatment.Sensor outer housing 1 has tapped through hole 12, and the side outlet is convenient to install, connect; Radome 5 can effectively prevent electromagnetic interference (EMI), improves Frequency Response, obtains accurately output data.
A kind of piezoelectric acceleration transducer of Fig. 2, it is characterized in that: described piezoelectric acceleration transducer is horizontal, comprise shell 1, support 2, piezoelectric device 3, mass 4, radome 5, connector 6 and circuit board 9, shell 1 top is provided with a tapped through hole 12 and a counterbore 11, piezoelectric device 3, mass 4, support 2 and radome 5 are in counterbore 11, piezoelectric device 3 is enclosed within on the central shaft of support 2, mass 4 is enclosed within on the piezoelectric device 3, piezoelectric device 3, mass 4 and support 2 are in radome 5, described counterbore 11 upper ends are provided with a lid 8, insulating trip 7 is equipped with in described support 2 bottoms, connector 6 is welded on the side of shell 1, circuit board 9 is installed on the piezoelectric device 3, places in the radome 5.Piezoelectric acceleration transducer uses securing member to be fixed on the detection position by tapped through hole 12, shock transfer is given this sensor, the inertial force of mass 4 forces piezoelectric device 3 to produce electric charge, electric charge carries out signal by the amplification modulate circuit on the circuit board 9 and amplifies conditioning, is transferred to computing machine through connector 6 and the coaxial stube cable of low noise again and does subsequent treatment.Sensor outer housing 1 has tapped through hole 12, and the side outlet is convenient to install, connect; Radome 5 can effectively prevent electromagnetic interference (EMI), improves Frequency Response, obtains accurately output data.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (2)
1. piezoelectric acceleration transducer, it is characterized in that: described piezoelectric acceleration transducer is horizontal, comprise shell, support, piezoelectric device, mass, radome, connector, the shell top is provided with a tapped through hole and a counterbore, piezoelectric device, mass, support and radome are in counterbore, piezoelectric device is enclosed within on the central shaft of support, mass is enclosed within on the piezoelectric device, piezoelectric device, mass and support are in radome, described counterbore upper end is provided with a lid, described frame bottom is equipped with insulating trip, and connector is welded on the side of shell.
2. a kind of piezoelectric acceleration transducer according to claim 1, it is characterized in that: described piezoelectric acceleration transducer also comprises a circuit board, circuit board is installed on the piezoelectric device, places in the radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164913 CN203133108U (en) | 2013-04-03 | 2013-04-03 | Piezoelectric accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164913 CN203133108U (en) | 2013-04-03 | 2013-04-03 | Piezoelectric accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133108U true CN203133108U (en) | 2013-08-14 |
Family
ID=48941079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320164913 Expired - Lifetime CN203133108U (en) | 2013-04-03 | 2013-04-03 | Piezoelectric accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203133108U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406683A (en) * | 2015-01-01 | 2015-03-11 | 陈传海 | Acceleration sensor |
| WO2016206094A1 (en) * | 2015-06-26 | 2016-12-29 | 厦门乃尔电子有限公司 | Shear-type piezoelectric sensor |
| 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 |
| CN107219377A (en) * | 2017-06-09 | 2017-09-29 | 西人马（厦门）科技有限公司 | Electric charge output element, assembly method and piezoelectric acceleration sensor |
| CN107688102A (en) * | 2017-09-15 | 2018-02-13 | 西人马（厦门）科技有限公司 | Electric charge output element and the shearing piezoelectric acceleration sensor of annular |
| CN112611886A (en) * | 2020-12-12 | 2021-04-06 | 山东利恩斯智能科技有限公司 | Internal ground insulation type acceleration sensor |
| CN114563596A (en) * | 2021-11-16 | 2022-05-31 | 浙江中控技术股份有限公司 | An anti-interference and high-voltage resistant triangular shear piezoelectric accelerometer |
-
2013
- 2013-04-03 CN CN 201320164913 patent/CN203133108U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406683A (en) * | 2015-01-01 | 2015-03-11 | 陈传海 | Acceleration sensor |
| WO2016206094A1 (en) * | 2015-06-26 | 2016-12-29 | 厦门乃尔电子有限公司 | Shear-type piezoelectric sensor |
| GB2555348A (en) * | 2015-06-26 | 2018-04-25 | Xiamen Niell Electronics Co Ltd | Shear-type piezoelectric sensor |
| 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 |
| WO2018223852A1 (en) * | 2017-06-07 | 2018-12-13 | 西人马（厦门）科技有限公司 | Charge output element and annular shear-type piezoelectric acceleration sensor |
| CN107219377A (en) * | 2017-06-09 | 2017-09-29 | 西人马（厦门）科技有限公司 | Electric charge output element, assembly method and piezoelectric acceleration sensor |
| WO2018223828A1 (en) * | 2017-06-09 | 2018-12-13 | 西人马（厦门）科技有限公司 | Charge output element, assembly method, and piezoelectric acceleration sensor |
| CN107219377B (en) * | 2017-06-09 | 2019-09-03 | 西人马联合测控（泉州）科技有限公司 | Charge output element, assembly method and piezoelectric acceleration sensor |
| CN107688102A (en) * | 2017-09-15 | 2018-02-13 | 西人马（厦门）科技有限公司 | Electric charge output element and the shearing piezoelectric acceleration sensor of annular |
| CN112611886A (en) * | 2020-12-12 | 2021-04-06 | 山东利恩斯智能科技有限公司 | Internal ground insulation type acceleration sensor |
| CN114563596A (en) * | 2021-11-16 | 2022-05-31 | 浙江中控技术股份有限公司 | An anti-interference and high-voltage resistant triangular shear piezoelectric accelerometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |