CN102901843A - Vector acceleration sensor - Google Patents
Vector acceleration sensor Download PDFInfo
- Publication number
- CN102901843A CN102901843A CN 201210386341 CN201210386341A CN102901843A CN 102901843 A CN102901843 A CN 102901843A CN 201210386341 CN201210386341 CN 201210386341 CN 201210386341 A CN201210386341 A CN 201210386341A CN 102901843 A CN102901843 A CN 102901843A
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- CN
- China
- Prior art keywords
- barred body
- metal barred
- cavity
- acceleration sensor
- vector acceleration
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- 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.)
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Abstract
The invention relates to a sensor, in particular to a vector acceleration sensor. The vector acceleration sensor is characterized by comprising at least one shell, wherein each shell is divided into two cavities; a flexible substrate is arranged in each cavity; a resistance strain sheet is arranged on the surface of each flexible substrate; a metal bar is arranged on the surface of each resistance strain sheet; the two flexible substrates, the resistance strain sheets, the first metal bar and the second metal bar are fixed in the left cavity and the right cavity of each shell; the first metal bar and the second metal bar dynamically move in the left cavity and the right cavity of each shell; and the two resistance strain sheets in each shell output signals in different directions through extraction electrodes. The vector acceleration sensor is high in process and high in reliability, and has a direction detection function.
Description
Technical field
The present invention relates to a kind of sensor, particularly a kind of vector acceleration sensor.
Background technology
Existing acceleration transducer is counted especially the step and is adopted spring, little hammer and piezoelectric patches to consist of with sensor, inspected object is when doing acceleration movement, the hand hammer subband spring of moving acts on the piezoelectric patches, produce pressure on the piezoelectric patches surface and change, export certain deformation signal by piezoelectric patches, processed by circuit, owing to connect little hammer and piezoelectric patches with spring, easily piezoelectric patches is caused damage, its two complex technical process is also damaged piezoelectric patches easily in the process.
Secondly, acceleration transducer is generally regardless of direction, but in the occasion that has, needs detect have acceleration change in what direction.
Summary of the invention
The purpose of this invention is to provide that a kind of technique is good, reliability is high, have the vector acceleration sensor that direction detects.
The object of the present invention is achieved like this, a kind of vector acceleration sensor, it is characterized in that: comprise at least a housing, housing is divided into two cavitys, in each cavity flexible substrate is arranged, there is straingauge on the flexible substrate surface, on the straingauge surface metal barred body is arranged, two groups of flexible substrates, straingauge and first metal barred bodies and the second metal barred body are fixed in the cavity of the left and right sides, the first metal barred body and the second metal barred body dynamic mobile in the cavity of the left and right sides, two groups of straingauges are by the different signal of extraction electrode outbound course.
Described two cavitys carry out respectively spacing to the first metal barred body and the second metal barred body, the first metal barred body or the second metal barred body can only be moved in one direction.
The present invention is owing to be divided into two cavitys with housing, flexible substrate is arranged respectively in each cavity, there is straingauge on the flexible substrate surface, the first metal barred body and the second metal barred body are arranged on the straingauge surface, the first metal barred body and the second metal barred body dynamic mobile in the cavity of the left and right sides, two groups of straingauges are by the different signal of extraction electrode outbound course.It has structural good, processing technology is simple, cost is low, the advantage of good reliability.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing:
Fig. 1 is embodiment of the invention structural representation.
Among the figure, 1, flexible substrate; 2, the first straingauge; 3, the first metal barred body; 4, housing; 5, extraction electrode; 6, left cavity body; 7, the second metal barred body; 8, right cavity body; 9, the second straingauge.
Embodiment
As shown in Figure 1, a kind of vector acceleration sensor, at least comprise a housing, housing 4 is divided into left cavity body 6 and right cavity body 8, in left cavity body 6 and the right cavity body 8 flexible substrate 1(such as sponge are arranged), there are the first straingauge 2 and the second straingauge 9 in flexible substrate 1 surface in left cavity body 6 and the right cavity body 8, on the first straingauge 2 surfaces the first metal barred body 3 is arranged, on the second straingauge 9 surfaces the second metal barred body 7 is arranged, the first metal barred body 3 and the second metal barred body 7 are at left cavity body 6 and right cavity body 8 interior dynamic mobiles, and two groups of straingauges are by the different signal of extraction electrode outbound course.
Claims (2)
1. vector acceleration sensor, it is characterized in that: comprise at least a housing, housing is divided into two cavitys, in each cavity flexible substrate is arranged, there is straingauge on the flexible substrate surface, on the straingauge surface metal barred body is arranged, two groups of flexible substrates, straingauge and first metal barred bodies and the second metal barred body are fixed in the cavity of the left and right sides, the first metal barred body and the second metal barred body dynamic mobile in the cavity of the left and right sides, two groups of straingauges are by the different signal of extraction electrode outbound course.
2. a kind of vector acceleration sensor according to claim 1 is characterized in that: described two cavitys carry out respectively spacing to the first metal barred body and the second metal barred body, the first metal barred body or the second metal barred body can only be moved in one direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210386341 CN102901843A (en) | 2012-10-12 | 2012-10-12 | Vector acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210386341 CN102901843A (en) | 2012-10-12 | 2012-10-12 | Vector acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102901843A true CN102901843A (en) | 2013-01-30 |
Family
ID=47574193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210386341 Pending CN102901843A (en) | 2012-10-12 | 2012-10-12 | Vector acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102901843A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880571A (en) * | 2015-05-26 | 2015-09-02 | 陈莹莹 | Acceleration sensing device |
| WO2021042316A1 (en) * | 2019-09-05 | 2021-03-11 | 深圳市柔宇科技有限公司 | Acceleration sensor |
-
2012
- 2012-10-12 CN CN 201210386341 patent/CN102901843A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880571A (en) * | 2015-05-26 | 2015-09-02 | 陈莹莹 | Acceleration sensing device |
| WO2021042316A1 (en) * | 2019-09-05 | 2021-03-11 | 深圳市柔宇科技有限公司 | Acceleration sensor |
| CN113366321A (en) * | 2019-09-05 | 2021-09-07 | 深圳市柔宇科技股份有限公司 | Acceleration sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |