CN203133111U - Capacitive acceleration sensor - Google Patents
Capacitive acceleration sensor Download PDFInfo
- Publication number
- CN203133111U CN203133111U CN 201320187713 CN201320187713U CN203133111U CN 203133111 U CN203133111 U CN 203133111U CN 201320187713 CN201320187713 CN 201320187713 CN 201320187713 U CN201320187713 U CN 201320187713U CN 203133111 U CN203133111 U CN 203133111U
- Authority
- CN
- China
- Prior art keywords
- chip
- circuit board
- acceleration sensor
- connector
- capacitive acceleration
- 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
- 230000001133 acceleration Effects 0.000 title claims abstract description 27
- 230000003750 conditioning effect Effects 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Pressure Sensors (AREA)
Abstract
The utility model discloses a capacitive acceleration sensor. The capacitive acceleration sensor is characterized by comprising a housing, a chip, a circuit board, a lid, a connector and a signal wire, wherein the chip is fixed on the circuit board; the circuit board is arranged inside the housing; the connector is connected to the side of the housing; the signal wire is connected with the circuit board and the connector; the lid is fixed on the housing; the chip adopts a micro-electromechanical system (MEMS) capacitive acceleration sensor chip; the circuit on the circuit board adopts a signal amplifying and conditioning circuit; a discrete component is replaced by the MEMS capacitive acceleration sensor chip; and the product is small in volume, easy to integrate, low in cost and high in reliability, and easily achieves digitization and intelligentization. The chip is manufactured by a micro-electromechanical structure, so that the capacitive acceleration sensor is accurate, good in repeatability, high in cost performance, and suitable for mass production; and the product adopts the signal amplifying and conditioning circuit, so that the capacitive acceleration sensor is high in measurement accuracy, good in stability and good in working range.
Description
Technical field
The utility model relates to a kind of acceleration transducer, refers in particular to a kind of capacitance 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.Capacitance acceleration transducer is measured acceleration change to be converted to a class sensor of capacitance change, because have the measuring accuracy height, and advantage such as output is stable, and temperature drift is little and being used widely.
The capacitance type sensor that traditional diamond-making technique is made, usually by mass, spring leaf, discrete element such as fixed polar plate constitutes up and down, places together in the shell, is encapsulated, and forms product.Small product size is big, be not easy to integrated, stability and poor reliability.Because structural design, the limitation of use material and production technology etc. causes properties of product generally relatively poor, can only be used for low precision measure, belong to low-end product.
The utility model content
The utility model has solved above-mentioned technical matters, and a kind of capacitance acceleration transducer is provided.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: capacitance acceleration transducer, it is characterized in that: comprise shell, chip, circuit board, lid, connector and signal wire, described chip is fixed on the circuit board, circuit board places in the shell, connector is connected the shell side, signal wire connecting circuit plate and connector, and lid is fixed on the shell.
Further, described chip adopts MEMS capacitance acceleration transducer chip.
Further, the circuit on the described circuit board adopts signal amplifying and conditioning circuit.
Further, between described connector and the shell, fixing by welding between lid and the shell.
Adopt the beneficial effects of the utility model:
1, adopt MEMS capacitance acceleration transducer chip, replace discrete component, product has that volume is little, easy of integration, low-cost, reliability is high, is easy to realize digitizing and intellectuality; And because the micro mechanical structure that chip adopts is made accurately, good reproducibility, be suitable for producing in enormous quantities, its ratio of performance to price is very high.
2, product adopts signal amplifying and conditioning circuit, makes its measuring accuracy height, good stability, working range good.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Capacitance acceleration transducer shown in Figure 1, comprise shell 3, chip, circuit board 2, lid 1, connector 4 and signal wire 5, described chip is fixed on the circuit board 2, circuit board 2 places in the shell 3, connector 4 is connected shell 3 sides, signal wire 5 connecting circuit plates 2 and connector 4, lid 1 is fixed on the shell 3, described chip adopts MEMS capacitance acceleration transducer chip, circuit on the described circuit board 2 adopts signal amplifying and conditioning circuit, between described connector 4 and the shell 3, fixing by welding between lid 1 and the shell 3, sensor is installed on the object under test, and object under test produces acceleration, and the capacitance type sensor chip senses acceleration, and acceleration changed into electric signal, electric signal is nursed one's health the back and is exported through amplifying modulate circuit.
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 (4)
1. capacitance acceleration transducer, it is characterized in that: comprise shell, chip, circuit board, lid, connector and signal wire, described chip is fixed on the circuit board, circuit board places in the shell, connector is connected the shell side, signal wire connecting circuit plate and connector, lid is fixed on the shell.
2. capacitance acceleration transducer according to claim 1 is characterized in that: described chip employing MEMS capacitance acceleration transducer chip.
3. capacitance acceleration transducer according to claim 1 is characterized in that: the circuit employing signal amplifying and conditioning circuit on the described circuit board.
4. capacitance acceleration transducer according to claim 1 is characterized in that: between described connector and the shell, fixing by welding between lid and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187713 CN203133111U (en) | 2013-04-12 | 2013-04-12 | Capacitive acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187713 CN203133111U (en) | 2013-04-12 | 2013-04-12 | Capacitive acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133111U true CN203133111U (en) | 2013-08-14 |
Family
ID=48941082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187713 Expired - Lifetime CN203133111U (en) | 2013-04-12 | 2013-04-12 | Capacitive acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203133111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907354A (en) * | 2017-11-07 | 2018-04-13 | 南京高华科技股份有限公司 | One kind is used for standard EMU Cross deformation detection device |
-
2013
- 2013-04-12 CN CN 201320187713 patent/CN203133111U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907354A (en) * | 2017-11-07 | 2018-04-13 | 南京高华科技股份有限公司 | One kind is used for standard EMU Cross deformation detection device |
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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 |