CN203364954U - Stake friction sensor - Google Patents
Stake friction sensor Download PDFInfo
- Publication number
- CN203364954U CN203364954U CN 201320402277 CN201320402277U CN203364954U CN 203364954 U CN203364954 U CN 203364954U CN 201320402277 CN201320402277 CN 201320402277 CN 201320402277 U CN201320402277 U CN 201320402277U CN 203364954 U CN203364954 U CN 203364954U
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- China
- Prior art keywords
- signal
- sensitivity
- processing circuit
- sensor
- stake
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a stake friction sensor including an oscillator casing, an inertia vibrator and signal-processing circuit boards. The inertia vibrator is installed in the oscillator casing. Sensitivity adjusting springs are installed at the two sides of the inertia vibrator. Insulating sleeves are installed at the two sides of the sensitivity adjusting springs. Signal extraction terminals are installed at the upper ends of the insulating sleeves. The signals-processing circuit boards are installed at the upper ends of the signal extraction terminals. Sensitivity adjusting bolts are arranged at the lower ends of the insulating sleeves. Connection terminals are installed at the outer sides of the signal-processing circuit boards and the sensitivity adjusting bolts respectively. The beneficial effects of the stake friction sensor are that the sensor is simple in structure, convenient to use, safe and reliable, low in manufacturing cost, stable in performance and changed in sensitivity of a vibration sensor so that problems of weak low frequencies and friction-signal sensing and extraction in operation of a stake-test device are solved.
Description
Technical field
The utility model relates to a kind of bar grazing sensor.
Background technology
Sensor is examined device procedures king-pile bar in the exploitation stake and is absolutely necessary, when the stake bar be subject to wiping, should be immediately while touching by wipe, touch signal with to inform or to show, to will wipe, touch signal and just must have perception to wipe, touch the signal sensitive element to inform or to show, the sensors such as existing piezoelectric ceramic type, moving-coil type, magneto-electric, but, they to wiping, to touch the signal susceptibility all poor, DeGrain or fail to judge, trace it to its cause and be: wiping, touch signal itself is low frequency, small magnitude signal, they to the wiping of this low frequency, small magnitude, touch signal extraction insensitive.
The utility model content
The utility model, in order to make up the defect of prior art, provides a kind of simple in structure, the convenient stake bar grazing sensor used.
The utility model is achieved by the following technical solution:
Stake bar grazing sensor, comprise oscillator shell, inertial oscillation and signal processing circuit board, in described oscillator shell, inertial oscillation is housed, the adjustment of sensitivity spring is equipped with in the sub-both sides of inertial oscillation, insulation sleeve is equipped with in adjustment of sensitivity spring both sides, and the signal extraction terminal is equipped with in the insulation sleeve upper end, and signal processing circuit board is equipped with in signal extraction terminal upper end, the adjustment of sensitivity screw is equipped with in the insulation sleeve lower end, and link is equipped with respectively in the outside of signal processing circuit board and adjustment of sensitivity screw.
The beneficial effects of the utility model are: simple in structure, easy to use, safe and reliable, cost is lower, and stable performance changes the sensitivity of vibration transducer, has solved stake and has examined equipment faint low frequency in service, wipes a difficult problem of touching signal perception, extraction.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing is structural representation of the present utility model;
In figure, 1 link, 2 signal processing circuit boards, 3 signal extraction terminals, 4 insulation sleeves, 5 inertial oscillation, 6 oscillator shells, 7 adjustment of sensitivity springs, 8 adjustment of sensitivity screws.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This utility model stake bar grazing sensor, comprise oscillator shell 6, inertial oscillation son 5 and signal processing circuit board 2, in described oscillator shell 6, inertial oscillation 5 is housed, adjustment of sensitivity spring 7 is equipped with in inertial oscillation 5 both sides, insulation sleeve 4 is equipped with in adjustment of sensitivity spring 7 both sides, signal extraction terminal 3 is equipped with in insulation sleeve 4 upper ends, signal processing circuit board 2 is equipped with in signal extraction terminal 3 upper ends, adjustment of sensitivity screw 8 is equipped with in insulation sleeve 4 lower ends, and signal processing circuit board 2 is equipped with respectively link 1 with the outside of adjustment of sensitivity screw 8.This utility model stake bar grazing sensor, during use when the vibration transducer housing is subject to External Force Acting, sensor housing produces certain displacement by the outward force direction, sensor housing displacement inertial force effect and produce relative lagged displacement, and the displacement hysteresis will cause oscillator shell 6 to contact with the collision of inertial oscillation 5 outer round surface, if oscillator shell 6 and inertial oscillation 5 are set to respectively to two electric contacts, now the closure of two contacts will appear, thereby produce the circuit turn-on signal, this Continuity signal will be shown as the signal that sensor is touched, the two ends of inertial oscillation 5 in this vibration transducer arrange adjustment of sensitivity spring 7, the spring tension that can regulate by adjusting adjustment of sensitivity screw 8 the adjustment of sensitivity spring 7 at inertial oscillation 5 two ends changes the extraneous sensitivity of experiencing vibration of impression, thereby can change the sensitivity of vibration transducer.
The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection domain of the present utility model.
The technology that the utility model is not described in detail, shape, structure partly are known technology.
Claims (1)
1. stake bar grazing sensor, comprise oscillator shell (6), inertial oscillation (5) and signal processing circuit board (2), it is characterized in that: inertial oscillation (5) is housed in oscillator shell (6), adjustment of sensitivity spring (7) is equipped with in inertial oscillation (5) both sides, insulation sleeve (4) is equipped with in adjustment of sensitivity spring (7) both sides, signal extraction terminal (3) is equipped with in insulation sleeve (4) upper end, signal processing circuit board (2) is equipped with in signal extraction terminal (3) upper end, adjustment of sensitivity screw (8) is equipped with in insulation sleeve (4) lower end, signal processing circuit board (2) is equipped with respectively link (1) with the outside of adjustment of sensitivity screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320402277 CN203364954U (en) | 2013-07-08 | 2013-07-08 | Stake friction sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320402277 CN203364954U (en) | 2013-07-08 | 2013-07-08 | Stake friction sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203364954U true CN203364954U (en) | 2013-12-25 |
Family
ID=49812700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320402277 Expired - Fee Related CN203364954U (en) | 2013-07-08 | 2013-07-08 | Stake friction sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203364954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320623A (en) * | 2017-12-30 | 2018-07-24 | 广州展讯信息科技有限公司 | A kind of stake bar detection device and method applied to Driving Test examination |
-
2013
- 2013-07-08 CN CN 201320402277 patent/CN203364954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320623A (en) * | 2017-12-30 | 2018-07-24 | 广州展讯信息科技有限公司 | A kind of stake bar detection device and method applied to Driving Test examination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |