CN101320050A - Acceleration sensor movement - Google Patents
Acceleration sensor movement Download PDFInfo
- Publication number
- CN101320050A CN101320050A CNA200710018017XA CN200710018017A CN101320050A CN 101320050 A CN101320050 A CN 101320050A CN A200710018017X A CNA200710018017X A CN A200710018017XA CN 200710018017 A CN200710018017 A CN 200710018017A CN 101320050 A CN101320050 A CN 101320050A
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- China
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- magnet
- energy conversion
- conversion device
- damping
- acceleration sensor
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Abstract
The invention relates to a mechanical core of an acceleration sensor, which comprises an energy conversion device and a damping device which are arranged in a shell. The damping device is a magnetic-repulsion damping device arranged at the end of the energy conversion device. The magnetic-repulsion damping device consists of a pair of I magnet and II magnet; wherein, II magnet forming the magnetic-repulsion damping device is fixed at the end of the energy conversion device, and I magnet which forms magnetic action together with the II magnet and is arranged at the position corresponding to the position of II magnet is supported on the shell by a bracket. The mechanical core provided by the invention solves the technical problems of the background technology that a system damping is greatly influenced by media, temperature and other factors, cannot be adjusted and controlled conveniently and has high cost. The mechanical core provided by the prevention has sufficient damping, excellent stability and low cost; and the damping force can be controlled quantitatively and adjusted easily.
Description
Technical field
The present invention relates to a kind of acceleration sensor movement.
Background technology
The damping of acceleration sensor movement vibrational system is the important parameter that influences sensor signal resolution.The system damping deficiency, the wavelet vibration period of vibration can too much cause low, the poor signal quality of sensor signal resolution.At present, the implementation of raising damping mainly contains mechanical damping, comprises fluid damping, resistance Buddhist nun and the magnetic eddy current damping etc. that contain air and lipid.
Mechanical damping is to realize by friction force that increases vibrational system and the rigidity that improves vibrating spring, and shortcoming is that the effective energy loss of system is more, is difficult for quantitatively control.
Fluid damping, cost is relatively low, but its linearity is subject to influence of temperature change, and because resisting medium needs directly to contact with piezoelectric element, resisting medium can corrode the silver layer surface of voltage component simultaneously.
The resistance Buddhist nun, by and connect shunt resistance and realize that though cost is low, shunt resistance reduces the sensitivity of useful signal, and damping requires highly more, the energy loss of sensitivity is big more.
The magnetic eddy current damping can quantize, and temperature influence not, but the cost height, simultaneously the machining accuracy of relevant damping part is required very highly, and damping is unadjustable after the moulding.
Summary of the invention
The object of the present invention is to provide a kind of acceleration sensor movement, it has solved, and system damping is subjected to factor affecting such as medium, temperature big in the background technology, regulates, controls inconvenience and cost technical problems of high.
Technical scheme of the present invention is:
A kind of acceleration sensor movement, comprise housing 4, be arranged at energy conversion device 6 and damping unit in the housing 4, its special character is: described damping unit is a magnetic repulsion damping unit 1, and this magnetic repulsion damping unit 1 is arranged at the end of energy conversion device 6; Described magnetic repulsion damping unit 1 is made of a pair of I magnet 3 and II magnet 5, the II magnet 5 of described formation magnetic repulsion damping unit 1 is fixed in the end of energy conversion device 6, can form the corresponding I magnet 3 of magneticaction and position with II magnet 5 and be supported on the housing 4 by support 2.
Above-mentioned magnetic repulsion damping unit 1 can adopt one group, and it is arranged at an end of energy conversion device 6.
Above-mentioned magnetic repulsion damping unit 1 can adopt two groups, and it is arranged at the two ends of energy conversion device 6 respectively.
Above-mentioned I magnet 3 can be fixed on the support 2 by bolt 8, rivet or viscose glue etc., is fixed as good with bolt 8.
The adjusting pad 7 of regulating magnetic force size between I magnet 3 and the II magnet 5 can be set between above-mentioned I magnet 3 and the support 2.
The place, slit that above-mentioned housing 4 combines with end cap 10 can be provided with O-ring seal 9.
Above-mentioned II magnet 5 is advisable with the nested end of being fixed in energy conversion device 6.
The present invention has the following advantages:
1. system damping abundance, highly sensitive, sensor signal resolution height, signal quality are good.
2. the damping force adjustable size is easy to quantitative control, produces debugging conveniently.
3. the influence that the damping linearity is not changed by medium and ambient temperature, good stability.
4. the loss of the effective energy of system is few, and the parts machining accuracy requires low, and cost of products is lower.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The drawing reference numeral explanation: 1-magnetic repulsion damping unit, the 2-support, 3-I magnet, the 4-housing, 5-II magnet, the 6-energy conversion device, 7-regulates pad, 8-bolt, 9-O-ring seal, 10-end cap.
Embodiment
Damping unit of the present invention adopts magnetic repulsion damping unit 1, when energy conversion device 6 motions, the I magnet 3 that constitutes magnetic repulsion damping unit 1 can produce repulsive force with II magnet 5, thereby can reduce the Oscillation Amplitude and the number of times of energy conversion device 6, reaches damping.
Energy conversion device 6 of the present invention and damping unit are arranged in the housing 4, and magnetic repulsion damping unit 1 is arranged at the end of energy conversion device 6.
Magnetic repulsion damping unit 1 can adopt one group, is arranged at an end of energy conversion device 6.Magnetic repulsion damping unit 1 also can adopt two groups, is arranged at the two ends of energy conversion device 6 respectively.
Magnetic repulsion damping unit 1 is made of with II magnet 5 a pair of I magnet 3, and II magnet 5 is fixed in the end of energy conversion device 6, is advisable with the nested end of being fixed in energy conversion device 6.Specifically can be earlier the projection or II magnet 5 bottoms of II magnet 5 centers or bottom be embedded in the groove of energy conversion device 6 ends, again the two be fixed with one.Also the groove of the center pit of II magnet 5 or II magnet 5 bottoms can be placed on the projection, boss of energy conversion device 6 ends, again the two be fixed with one.
I magnet 3 is supported on the housing 4 by support 2.I magnet 3 is corresponding with the position of II magnet 5, and the two can form magneticaction, i.e. magnetic attachment, repulsive force effect.I magnet 3 can be selected neodymium iron boron or aluminium nickel cobalt material for use with II magnet 5, to reduce manufacturing cost.
I magnet 3 can be fixed on the support 2 by bolt 8, rivet or viscose glue etc., is fixed as good with bolt 8.Can be provided with between I magnet 3 and the support 2 and regulate pad 7, by regulating the distance between I magnet 3 and the II magnet 5, with the size of the repulsive force between adjusting I magnet 3 and the II magnet 5, thus the adjusting of realization magnetic repulsion damping unit 1 damping force size.Regulate pad 7 and be mainly used in the production debugging.
The place, slit that housing 4 combines with end cap 10 can be provided with O-ring seal 9.
Claims (7)
1. acceleration sensor movement, comprise housing (4), be arranged at energy conversion device (6) and damping unit in the housing (4), it is characterized in that: described damping unit is magnetic repulsion damping unit (1), and this magnetic repulsion damping unit (1) is arranged at the end of energy conversion device (6); Described magnetic repulsion damping unit 1 is made of a pair of I magnet (3) and II magnet (5), the II magnet (5) of described formation magnetic repulsion damping unit (1) is fixed in the end of energy conversion device (6), can form magneticaction with II magnet (5) and the corresponding I magnet in position (3) is supported on the housing (4) by support (2).
2. acceleration sensor movement according to claim 1 is characterized in that: described magnetic repulsion damping unit (1) is one group, and it is arranged at an end of energy conversion device (6).
3. acceleration sensor movement according to claim 1 is characterized in that: described magnetic repulsion damping unit (1) is two groups, and it is arranged at the two ends of energy conversion device (6) respectively.
4. according to claim 1 or 2 or 3 described acceleration sensor movements, it is characterized in that: described I magnet (3) is fixed on the support (2) by bolt (8), rivet or viscose glue.
5. acceleration sensor movement according to claim 4 is characterized in that: be provided with between described I magnet (3) and the support (2) and regulate pad (7).
6. acceleration sensor movement according to claim 1 is characterized in that: the place, slit that described housing (4) combines with end cap (10) is provided with O-ring seal (9).
7. acceleration sensor movement according to claim 6 is characterized in that: the nested end of being fixed in energy conversion device (6) of described II magnet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710018017XA CN101320050A (en) | 2007-06-07 | 2007-06-07 | Acceleration sensor movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710018017XA CN101320050A (en) | 2007-06-07 | 2007-06-07 | Acceleration sensor movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101320050A true CN101320050A (en) | 2008-12-10 |
Family
ID=40180214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710018017XA Pending CN101320050A (en) | 2007-06-07 | 2007-06-07 | Acceleration sensor movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101320050A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814608A (en) * | 2012-07-26 | 2012-12-12 | 中国船舶重工集团公司第七○二研究所 | Device for mounting and locating fiber grating spot-welding type strain sensor |
-
2007
- 2007-06-07 CN CNA200710018017XA patent/CN101320050A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814608A (en) * | 2012-07-26 | 2012-12-12 | 中国船舶重工集团公司第七○二研究所 | Device for mounting and locating fiber grating spot-welding type strain sensor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081210 |