CN2084612U - Micro vibration sensor - Google Patents
Micro vibration sensor Download PDFInfo
- Publication number
- CN2084612U CN2084612U CN 90227168 CN90227168U CN2084612U CN 2084612 U CN2084612 U CN 2084612U CN 90227168 CN90227168 CN 90227168 CN 90227168 U CN90227168 U CN 90227168U CN 2084612 U CN2084612 U CN 2084612U
- Authority
- CN
- China
- Prior art keywords
- hair side
- electrode
- conducting layer
- vibrating mass
- vibration
- 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 - Lifetime
Links
- 239000002131 composite material Substances 0.000 claims description 10
- 230000004069 differentiation Effects 0.000 claims description 4
- 239000002322 conducting polymer Substances 0.000 claims 1
- 229920001940 conductive polymer Polymers 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a miniature vibration sensor, comprising rough compound paired electrodes, a rough compound vibration block and a casing. The utility model has the advantages of simple structure, high sensitivity, convenient production and use, good reliability and low cost, being applicable for the fields of civil consumer goods, etc.
Description
The utility model is a kind of vibration transducer.
Existing micro-vibration sensor is made up of housing, power conversion device and vibrating mass.It is that vibrating mass is placed on the force sensing element, and when vibrating mass vibrated, force sensing element just converted its vibratory output to electric signal.Force sensing element is a semiconductor gauge, or the piezoelectric forces sensing device, or other force transducers.This sensor construction complexity, the simulating signal of output is very little, and directivity is arranged, and makes follow-up signal treatment circuit and process for machining and manufacturing complexity to have caused cost higher.
The purpose of this utility model provide a kind of simple in structure, highly sensitive, output switching value micro-vibration sensor.
The purpose of this utility model is achieved by the following technical solution: by having the paired electrode of hair side composite conducting layer with the contacted surface of vibrating mass, or in the cavity that housing constitutes, the vibrating mass that is had hair side composite conducting layer by the surface that can make paired electrode conducting or disconnection of activity is formed.Vibrating mass contacts with paired electrode, because vibrating mass and paired electrode surface in contact are the hair side conductive layer, so contact area increases.When the weight of vibrating mass when contacting conducting pressure a critical value, the outside applies a very little vibration all can make its conducting or disconnection, so just forms vibration detection.One of them electrode of this micro-vibration sensor also can insert a differentiation circuit means.Make its make-and-break signal form pulse signal output after treatment.Change the quality of vibrating mass, also can the mechanical vibration of different-energy be detected.
The utility model is by paired combination electrode, and compound vibration piece, or the sensor that constitutes with housing are so simple in structure, cost reduces.Vibrating mass causes the conducting or the disconnection of electrode, so sensitivity is higher in the cavity internal vibration.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is a structure cut-open view of the present utility model.
Fig. 2 inserts the structural representation of differentiation circuit means for Fig. 1.
Fig. 3 is the electrical schematic diagram of Fig. 2.
With reference to Fig. 1, the medial surface of recessed copper electrode 1,3 constitutes cavity with insulation course again through scared generation hair side composite conducting layer 2 in the centre, and the vibrating mass 4 with hair side composite conducting layer 2 places in the cavity, can contact and conducting simultaneously with electrode 1,3.When vibrating mass 4 during in the cavity internal vibration, even copper electrode 1,3 conducting or disconnections form vibration detection.Paired electrode 1,3, also the hair side elastic composite electrode that can form by hair side elastic conducting layer and basal electrode.The hair side elastic conducting layer is to be made of the elastic conduction macromolecular material.
With reference to Fig. 2, Fig. 3, electrode 1 of vibration transducer 6 or 3, with one by resistance R
1, R
2, capacitor C
1After the differentiation circuit means of forming 5 is joined, after the wherethrough reason, with regard to exportable pulse signal.A, C are input end, and B, C are output terminal.
Claims (4)
1, a kind of micro-vibration sensor, contain housing, of the present utility model being characterised in that by having the paired electrode [1,3] of hair side composite conducting layer [2] with the contacted surface of vibrating mass [4], or in the cavity that shell constitutes, the vibrating mass [4] that has the movable surface that can make paired electrode [1,3] conducting or disconnection to have hair side composite conducting layer [2] is formed.
2, vibration transducer according to claim 1 is characterized in that hair side composite conducting layer (2) has elasticity.
3, vibration transducer according to claim 1 and 2 is characterized in that hair side composite conducting layer (2) is a conducting polymer composite.
4, vibration transducer according to claim 1 and 2 is characterized in that electrode (1 or 3) can also insert differentiation circuit means (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90227168 CN2084612U (en) | 1990-12-31 | 1990-12-31 | Micro vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90227168 CN2084612U (en) | 1990-12-31 | 1990-12-31 | Micro vibration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084612U true CN2084612U (en) | 1991-09-11 |
Family
ID=4904281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90227168 Expired - Lifetime CN2084612U (en) | 1990-12-31 | 1990-12-31 | Micro vibration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782425B (en) * | 2009-01-15 | 2012-03-07 | 深圳富泰宏精密工业有限公司 | Device for testing vibration function of portable electronic device |
-
1990
- 1990-12-31 CN CN 90227168 patent/CN2084612U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782425B (en) * | 2009-01-15 | 2012-03-07 | 深圳富泰宏精密工业有限公司 | Device for testing vibration function of portable electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |