CN203259247U - Micro-vibration detector - Google Patents
Micro-vibration detector Download PDFInfo
- Publication number
- CN203259247U CN203259247U CN 201320216755 CN201320216755U CN203259247U CN 203259247 U CN203259247 U CN 203259247U CN 201320216755 CN201320216755 CN 201320216755 CN 201320216755 U CN201320216755 U CN 201320216755U CN 203259247 U CN203259247 U CN 203259247U
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- vibration detector
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Abstract
The utility model discloses a micro-vibration detector which mainly comprises a front arranged sensor and a fixing rod (6). The front arranged sensor is composed of a piezoelectric sheet (1), a spring (2) and a small steel ball (3). The small steel ball (3) is welded with the piezoelectric sheet (2) through the spring (2). A first signal line (4) and a second signal line (5) are welded on the piezoelectric sheet. The micro-vibration detector provided by the utility model realizes full automatic electronic processing and comprises no outer lead, thereby facilitating informatized management through a single-chip microcomputer. The micro-vibration detector is suitable for popularization and application.
Description
Technical field
The utility model belongs to the vibration test technology field, relates to a kind of little vibrating detector.
Background technology
Mechanical clocking method is adopted in the management of vehicle and engineering machinery more at present, and core is at the engine position mechanical vibrating mass to be installed, and then is connected to outside timing piece with lead-in wire.When vehicle used, engine operation, was convenient to understand the service time of vehicle and is carried out depreciation and stock's management the service time of calculagraph record engineering truck.Its shortcoming: in case the line of mechanical sensor comes off or by the people for pulling out, whole timekeeping system lost efficacy and can't use, moreover its fully mechanical is not easy to realize information system management.
The utility model content
In order to overcome defective of the prior art, the utility model provides a kind of little vibrating detector, and this little vibrating detector does not need to contact with engine, is placed on car body Anywhere, can experience omnidirectional vibration fully, even faint vibration.Be output as voltage signal, can directly access the chip microprocessor realization information system managements such as single-chip microcomputer, can have a style of one's own consists of independently calculagraph, accomplishes without external line, directly sticks on pilothouse and gets final product.
Its technical scheme is as follows:
A kind of little vibrating detector mainly comprises preposition sensor and fixed bar, and described preposition sensor is made of piezoelectric patches, spring, small ball, and small ball is by spring and piezoelectric patches welding, welding first signal line and secondary signal line two signal line on the piezoelectric patches.The beneficial effects of the utility model: the existing all electronic of the real little vibrating detector of the utility model is processed, and does not have outside lead, is convenient to adopt single-chip microcomputer to carry out informationalized management.
Description of drawings
Fig. 1 is the structural drawing of the little vibrating detector of the utility model;
Fig. 2 is the electrical schematic diagram of the little vibrating detector of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described in more detail.
With reference to Fig. 1, a kind of little vibrating detector mainly comprises preposition sensor and fixed bar 6, and described preposition sensor is made of piezoelectric patches 1, spring 2, small ball 3, small ball 3 is by spring 2 and piezoelectric patches 1 welding, welding first signal line 4 and 5 liang of signal line of secondary signal line on the piezoelectric patches.The effect of small ball 3 is that small vibration is amplified, and 5 liang of signal line of first signal line 4 and secondary signal line are received the pin of the input end YDP for the treatment of circuit.Continuous like this mechanical vibration just are converted into the electric signal of continuous oscillation.
Electric principle of the present utility model as shown in Figure 2, U1A and resistance R 1 forms the piezoelectric patches signal and receives pre-process circuit, and the high resistant charge signal of piezoelectric patches is converted to voltage signal, is input to the emitter terminal of transistor Q1.Transistor Q1 resistance R 2, R3, R4 consist of level shift circuit, DC component VCC/2 in the voltage signal of input is removed, the dynamic component of stick signal, sending into the amplifying circuit that is comprised of R5, R6, U1B amplifies, the enlargement factor of this amplifier is R6/R5, and the feeble signal of input is amplified fully like this.U1C has been isolation and impedance transformation effect in this effect, guarantees to be worked reliably by the envelope detection circuit that D1, R7, C2 consist of.Dynamic Signal after being exaggerated after processing through detecting circuit, has just been become the direct current signal of step by dynamic oscillator signal, this signal send the single-chip microcomputer processing after via the U1D shaping.When vibration was arranged, U1D was output as high level, when not having, was output as low level.So just finished the variation that the vibration of car body is converted to the level state of circuit.
The above; it only is the better embodiment of the utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in the protection domain of the present utility model.
Claims (1)
1. little vibrating detector, it is characterized in that, mainly comprise preposition sensor and fixed bar (6), described preposition sensor is made of piezoelectric patches (1), spring (2), small ball (3), small ball (3) is by spring (2) and piezoelectric patches (1) welding, welding first signal line (4) and secondary signal line (5) two signal line on the piezoelectric patches.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320216755 CN203259247U (en) | 2013-04-26 | 2013-04-26 | Micro-vibration detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320216755 CN203259247U (en) | 2013-04-26 | 2013-04-26 | Micro-vibration detector |
Publications (1)
Publication Number | Publication Date |
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CN203259247U true CN203259247U (en) | 2013-10-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 201320216755 Expired - Lifetime CN203259247U (en) | 2013-04-26 | 2013-04-26 | Micro-vibration detector |
Country Status (1)
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CN (1) | CN203259247U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105651375A (en) * | 2016-03-31 | 2016-06-08 | 德清县德意电脑有限公司 | Extremely low frequency micro-vibration signal sensor |
CN108507666A (en) * | 2018-03-30 | 2018-09-07 | 华中科技大学 | A kind of micro-vibration detector based on piezoelectric sensing |
-
2013
- 2013-04-26 CN CN 201320216755 patent/CN203259247U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105651375A (en) * | 2016-03-31 | 2016-06-08 | 德清县德意电脑有限公司 | Extremely low frequency micro-vibration signal sensor |
CN108507666A (en) * | 2018-03-30 | 2018-09-07 | 华中科技大学 | A kind of micro-vibration detector based on piezoelectric sensing |
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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 |
Granted publication date: 20131030 |
|
CX01 | Expiry of patent term |