CN106526233B - Acceleration sensor - Google Patents
Acceleration sensor Download PDFInfo
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- CN106526233B CN106526233B CN201611087501.3A CN201611087501A CN106526233B CN 106526233 B CN106526233 B CN 106526233B CN 201611087501 A CN201611087501 A CN 201611087501A CN 106526233 B CN106526233 B CN 106526233B
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- main body
- elastic sheets
- deformation
- acceleration sensor
- cuboid main
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
- G01P15/122—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance by metal resistance strain gauges, e.g. wire resistance strain gauges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- General Physics & Mathematics (AREA)
- Measurement Of Force In General (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses an acceleration sensor, which comprises a cuboid main body formed by six elastic sheets, wherein an inertial mass block capable of moving towards any direction is arranged in the cuboid main body, a measuring device is arranged on the cuboid main body and is used for measuring a strain value of the elastic sheets when the inertial mass block is in contact with the elastic sheets, and the measuring device is electrically connected with a computing system capable of converting the measured strain value into an acceleration value; the acceleration sensor has the advantages of simple structure, low debugging difficulty, wide application range and long service life.
Description
Technical Field
The present invention relates to an acceleration sensor.
Background
The strain type acceleration sensor combines the resistance strain effect and the principle of the inertial force of the system well, and has good applicability in practical test work. The strain type acceleration sensor is generally composed of a strain gauge, a mass block, a cantilever beam and a base, and the strain type acceleration sensor is complex in structural design, difficult to debug, small in application range and short in service life.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an acceleration sensor with simple structure and long service life.
The invention adopts the technical proposal for solving the technical problems that:
an acceleration sensor, comprising: the device comprises a cuboid main body composed of six elastic sheets, wherein an inertial mass block which is abutted against the six elastic sheets and can move towards any direction is arranged in the cuboid main body, a measuring device is arranged on the cuboid main body and is used for measuring deformation values of the elastic sheets when the inertial mass block is in contact with the elastic sheets, and a computing system which can convert the measured deformation values into acceleration values is electrically connected to the measuring device.
The measuring device comprises six resistance strain gauges which are respectively arranged on six elastic plates.
The measuring device comprises an elastic component which can press the inertia mass block against three adjacent elastic pieces of the cuboid main body in pairs and deform the three adjacent elastic pieces in pairs, and the three adjacent elastic pieces in pairs are all provided with a resistance strain gauge.
The measuring device comprises six resistance strain gauges which are respectively arranged on the six elastic plates.
The elastic component is a compression spring or an extension spring.
The cuboid main body is a regular hexahedron, and the inertial mass block is a sphere.
The protective cover is used for accommodating the cuboid main body, and a gap is reserved between the inner wall of the protective cover and the cuboid main body.
The protective cover comprises an upper cover body and a base detachably connected with the upper cover body.
The invention has the beneficial effects that: the acceleration sensor comprises a cuboid main body formed by six elastic sheets, wherein an inertial mass block capable of moving towards any direction is arranged in the cuboid main body, a measuring device is arranged on the cuboid main body and is used for measuring a strain value of the elastic sheets when the inertial mass block is in contact with the elastic sheets, and the measuring device is electrically connected with a computing system capable of converting the measured strain value into an acceleration value; the acceleration sensor has the advantages of simple structure, low debugging difficulty, wide application range and long service life.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of one of the cross sections of the present invention;
fig. 3 is a schematic view of another cross section of the present invention.
FIG. 4 is a schematic illustration of the structure of the present invention with the protective cover removed.
Detailed Description
Referring to fig. 1 to 4, an acceleration sensor includes: the cuboid main body 1 is formed by six elastic sheets, an inertial mass block 2 which is in butt joint with the six elastic sheets and can move towards any direction is movably arranged in the cuboid main body 1, a measuring device is arranged on the cuboid main body 1 and is used for measuring deformation values of the elastic sheets when the inertial mass block 2 is in contact with the elastic sheets, a calculating system which can convert the measured deformation values into acceleration values is electrically connected with the measuring device, and in addition, the vibration intensity of the object can be obtained through the calculating system according to the deformation of the elastic sheets.
In a preferred embodiment of the present invention, the elastic sheet is a steel sheet, the elastic sheet may also be a plastic sheet or a sheet made of other elastic materials, and the measuring device includes an elastic member 3 capable of pressing the inertial mass 2 against three adjacent elastic sheets of the rectangular main body 1 and deforming the three adjacent elastic sheets, where an electric resistance strain gauge is disposed on each of the three adjacent elastic sheets. The elastic component 3 may be a compression spring or an extension spring, or may be other elastic materials with a restoring function, such as rubber, etc., in this embodiment, the elastic component 3 is a compression spring, the compression spring abuts the inertial mass 2 on three adjacent elastic sheets of the cuboid main body 1, the three adjacent elastic sheets generate a certain deformation, the deformation value measured by the resistive strain gauge is set to be zero, when the inertial mass 2 continues to squeeze in the original deformation direction of the three adjacent elastic sheets, a positive deformation value is obtained according to the measurement of the resistive strain gauge, the deformation generates a change of resistance, and the resistance change value is transmitted to the computing system to obtain a corresponding acceleration value; when the inertial mass 2 moves in the opposite direction of the original deformation of the three adjacent elastic sheets, the resistance strain gauge measures to obtain a negative deformation value, the deformation generates resistance change, and the resistance change value is transmitted to a computing system to obtain a corresponding acceleration value. Resistive strain gages may also be disposed on the remaining three elastic sheets of the rectangular parallelepiped main body 1, and in one embodiment of the present invention, the measuring device includes six resistive strain gages disposed on six elastic sheets, and the elastic member 3.
Besides the above structural mode, the measuring device may further include six resistance strain gauges, where the six resistance strain gauges are respectively disposed on the six elastic plates, in an initial state, the six elastic plates of the inertial mass block 2 are all in contact and generate deformation of a certain value, in the computing system, the initial deformation of the six elastic plates is set to zero, when the inertial mass block 2 moves in a direction of any elastic plate and makes the elastic plate continuously generate deformation, the resistance strain gauges on the elastic plates generate resistance change due to the deformation, and transmit signals to the computing system, so as to obtain an acceleration value or a vibration intensity value of an object.
The cuboid main body 1 is preferably a regular hexahedron, and the inertial mass block 2 matched with the cuboid main body 1 of the regular hexahedron is preferably a sphere. The inertial mass 2 may be in other shapes, as long as the contact between the inertial mass 2 and the six elastic pieces of the rectangular parallelepiped main body 1 is point contact.
The acceleration sensor further comprises a protective cover 4 used for accommodating the cuboid main body 1, a gap is reserved between the inner wall of the protective cover 4 and the cuboid main body 1, an elastic piece on the cuboid main body 1 can reciprocate in the gap range, the protective cover 4 can prevent the cuboid main body 1 consisting of the elastic piece from colliding with objects except the inertial mass block 2 to cause deformation of a resistance strain gauge on the cuboid main body 1, so that accuracy of measurement values of the acceleration sensor is affected, the protective cover 4 comprises an upper cover body and a base detachably connected with the upper cover body, and the detachable protective cover 4 is convenient for extracting and placing the cuboid main body 1.
The foregoing is only a preferred embodiment of the present invention, and all technical solutions for achieving the object of the present invention by substantially the same means are within the scope of the present invention.
Claims (6)
1. An acceleration sensor, characterized by comprising: the device comprises a cuboid main body (1) formed by six elastic sheets, wherein an inertial mass block (2) which is abutted against the six elastic sheets and can move towards any direction is arranged in the cuboid main body (1), a measuring device is arranged on the cuboid main body (1) and is used for measuring deformation values of the elastic sheets when the inertial mass block (2) is in contact with the elastic sheets, and the measuring device is electrically connected with a computing system which can convert the measured deformation values into acceleration values;
the measuring device comprises an elastic component (3) which can press the inertia mass blocks (2) against three adjacent elastic sheets of the cuboid main body (1) in pairs and deform the three adjacent elastic sheets in pairs, and a resistance strain gauge is arranged on each of the three adjacent elastic sheets in pairs;
when the inertial mass blocks continue to squeeze towards the original deformation direction of the three adjacent elastic sheets, a deformation value with a positive value is obtained according to the measurement of the resistance strain sheet, the deformation generates resistance change, and the resistance change value is transmitted to a computing system so as to obtain a corresponding acceleration value; when the inertial mass moves to the opposite direction of the original deformation of the three adjacent elastic sheets, the resistance strain sheet measures to obtain a negative deformation value, the deformation generates resistance change, and the resistance change value is transmitted to a computing system to obtain a corresponding acceleration value.
2. An acceleration sensor according to claim 1, characterized in, that: the measuring device comprises six resistance strain gauges which are respectively arranged on the six elastic plates.
3. An acceleration sensor according to claim 1, characterized in, that: the elastic component (3) is a compression spring or an extension spring.
4. An acceleration sensor as claimed in any one of the claims 1-3, characterized in, that: the cuboid main body (1) is a regular hexahedron, and the inertial mass block (2) is a sphere.
5. An acceleration sensor as claimed in any one of the claims 1-3, characterized in, that: the novel protective cover is characterized by further comprising a protective cover (4) used for accommodating the cuboid main body (1), wherein a gap is reserved between the inner wall of the protective cover (4) and the cuboid main body (1).
6. An acceleration sensor according to claim 5, characterized in, that: the protective cover (4) comprises an upper cover body and a base which is detachably connected with the upper cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087501.3A CN106526233B (en) | 2016-11-30 | 2016-11-30 | Acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087501.3A CN106526233B (en) | 2016-11-30 | 2016-11-30 | Acceleration sensor |
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| Publication Number | Publication Date |
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| CN106526233A CN106526233A (en) | 2017-03-22 |
| CN106526233B true CN106526233B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611087501.3A Active CN106526233B (en) | 2016-11-30 | 2016-11-30 | Acceleration sensor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462196B (en) * | 2017-07-04 | 2019-07-09 | 大连理工大学 | A kind of transient Displacements meter and its design method based on particle response power inverting |
| CN108338461A (en) * | 2018-03-06 | 2018-07-31 | 苏州诚满信息技术有限公司 | A kind of intelligent appliance control bracelet |
| CN108760039A (en) * | 2018-08-24 | 2018-11-06 | 国网山东省电力公司电力科学研究院 | A kind of power transmission tower vibration monitoring device |
| CN109444468B (en) * | 2018-11-27 | 2020-08-07 | 中国地质大学（武汉） | Six-dimensional acceleration sensor based on micro-displacement parallel mechanism |
| CN111795739B (en) * | 2020-07-16 | 2021-07-20 | 中国科学院武汉岩土力学研究所 | Microseismic sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529809A (en) * | 2001-08-31 | 2004-09-15 | �Ҵ���˾ | Drop detection device |
| CN101937008A (en) * | 2010-07-23 | 2011-01-05 | 燕山大学 | Bar-beam structure six-axis accelerometer |
| CN102435775A (en) * | 2011-09-22 | 2012-05-02 | 重庆大学 | Strain type three-dimensional acceleration sensor |
| CN103575932A (en) * | 2013-11-20 | 2014-02-12 | 大连理工大学 | MEMS piezoresistive accelerometer |
| CN206321661U (en) * | 2016-11-30 | 2017-07-11 | 中山市晶威电子科技有限公司 | A kind of acceleration transducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130067336A (en) * | 2011-11-28 | 2013-06-24 | 삼성전기주식회사 | Inertial sensor |
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- 2016-11-30 CN CN201611087501.3A patent/CN106526233B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529809A (en) * | 2001-08-31 | 2004-09-15 | �Ҵ���˾ | Drop detection device |
| CN101937008A (en) * | 2010-07-23 | 2011-01-05 | 燕山大学 | Bar-beam structure six-axis accelerometer |
| CN102435775A (en) * | 2011-09-22 | 2012-05-02 | 重庆大学 | Strain type three-dimensional acceleration sensor |
| CN103575932A (en) * | 2013-11-20 | 2014-02-12 | 大连理工大学 | MEMS piezoresistive accelerometer |
| CN206321661U (en) * | 2016-11-30 | 2017-07-11 | 中山市晶威电子科技有限公司 | A kind of acceleration transducer |
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| CN106526233A (en) | 2017-03-22 |
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