CN205066924U - Displacement amplitude measuring transducer - Google Patents
Displacement amplitude measuring transducer Download PDFInfo
- Publication number
- CN205066924U CN205066924U CN201520820771.5U CN201520820771U CN205066924U CN 205066924 U CN205066924 U CN 205066924U CN 201520820771 U CN201520820771 U CN 201520820771U CN 205066924 U CN205066924 U CN 205066924U
- Authority
- CN
- China
- Prior art keywords
- reed
- displacement amplitude
- processing module
- data processing
- magnetic base
- 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 - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a displacement amplitude measuring transducer, this sensor is by magnetic base, metal pole, reed, oscillator, foil gage, data processing module, display, magnetic support switch, power source and dustcoat constitution. Metal pole bottom and magnetic base rigid coupling, metal peak of the staff portion and reed one end rigid coupling, reed top bottom surface center of area symmetry sets up two foil gages, the one end of reed is equipped with the oscillator, data processing module and magnetic base rigid coupling, integrated display of data processing module and power source, the outer envelope of hood on magnetic base, airtight space vacuum production that dustcoat and magnetic base formed. The utility model discloses a local displacement amplitude of steel bridge panel is measured, the record, shows the function of reading in real time, and performance analysis provides the foundation for the structure atress.
Description
Technical field
The utility model belongs to bridge machinery field, is specifically related to a kind of displacement amplitude survey sensor.
Background technology
In bridge Dynamic testing, the measurement of decking displacement vibration amplitude is an important content.Vibration amplitude refers to displacement amplitude, velocity amplitude and acceleration amplitude.In practical engineering application, the method for acceleration measurement that adopts is derived displacement more, but accelerometer is when structural vibration frequency is less, and measurement result is unreliable.Sometimes structure or plant equipment need to be controlled by displacement in addition, and namely allowable vibration displacement does not exceed a certain limit value, and displacement measurement seems more important.
Visible, how to design a kind of can more directly, the sensor of accurately measuring displacement structure amplitude become technical matters urgently to be resolved hurrily.
Summary of the invention
Goal of the invention: for existing amplitude measurement technology, provides a kind of device of displacement amplitude survey sensor.
Technical scheme: for realizing above technical purpose, the present invention will take following technical scheme:
A kind of displacement amplitude survey sensor, comprise base and outer cover, enclosure space is formed between described base and outer cover, column and reed are installed in described enclosure space, the bottom of shown column is fixedly connected with base, the top of described column is fixedly connected with one end of reed, and the other end of described reed is provided with oscillator, and the both sides up and down in the middle part of described reed are provided with a pair foil gauge.
As preferably, described base is magnetic bases.Can be vertically fixed on steel plate by magnetic force.
As preferably, described column is vertical Metallic rod.Can the Vibration Synchronization of just magnetic bases to Metallic rod top.
As preferably, described outer cover is made up of hemispheric top and columniform bottom, and described bottom is sheathed on base.The confined space of formation can be evacuated, ensure the free vibration of oscillator.
As preferably, described strainometer is connected to data processing module, described data processing module integrated display and power interface.Data processing module has the function of process strain data calculated amplitude, and is shown in real time by display by amplitude
During use, a kind of displacement amplitude survey sensor of the present utility model is by magnetic bases, and Metallic rod, reed, oscillator, foil gauge, data processing module, display, magnetic support switch, power interface and outer cover form.Affixed with magnetic bases bottom Metallic rod, Metallic rod top and reed one end affixed, bottom surface, the reed top center of area is symmetrical arranged two foil gauges, one end of reed is provided with oscillator, data processing module and magnetic bases affixed, external cover is on magnetic bases, and outer cover and magnetic bases form confined space, are evacuated.Reed one end and Metallic rod top affixed, the other end is provided with an oscillator, and reed self has certain rigidity, can keep not occurring Large travel range distortion under the Action of Gravity Field of oscillator.Outer cover is made up of two parts, upper hemispherical shape, lower cylindrical shape, and boring is enclosed within magnetic bases, is evacuated by the confined space of formation, ensures the free vibration of oscillator.The vibration of base, through Metallic rod, is amplified by the reed arm of force, and bottom surface, the top center of area of reed is arranged with two foil gauges, can go out the amplitude of base by Extrapolation by the strain differential measuring upper and lower foil gauge.
Beneficial effect: according to above technical scheme, relative to prior art, displacement amplitude survey sensor of the present utility model has following substantial feature and progress: directly can measure steel bridge deck displacement vibration amplitude and display in real time, easy for installation, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of reed in Fig. 1;
Fig. 3 is the cut-open view of outer cover in Fig. 1;
In figure: magnetic bases 1, Metallic rod 2, reed 3, oscillator 4, foil gauge 5, data processing module 6, display 7, magnetic support switch 8, power interface 9, outer cover 10.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1, displacement amplitude survey sensor is by magnetic bases 1, and Metallic rod 2, reed 3, oscillator 4, foil gauge 5, data processing module 6, display 7, magnetic support switch 8, power interface 9 and outer cover 10 form.Wherein affixed with magnetic bases 1 bottom Metallic rod 2, base 1 is also fixedly connected with data processing module 6, data processing module 6 integrated display 7 and power interface 9, outer cover 10 is enclosed within magnetic bases 1, outer cover 10 and magnetic bases 1 form confined space, confined space can be evacuated during use.
As shown in Figure 2, one end of Metallic rod 2 top and reed 3 is affixed, and the Central Symmetry pushing up bottom surface at reed 3 arranges two foil gauges 5, and the other end of reed 3 is provided with oscillator 4.
As shown in Figure 3, outer cover is made up of two parts, upper hemispherical shape, lower cylindrical shape, boring.
During measurement, sensor apparatus is vertically fixed on steel plate by magnetic bases, the vibration of steel plate is delivered on reed by magnetic bases through Metallic rod, the oscillator of one end of reed forms the arm of force relative to reed and Metallic rod point of fixity, the Oscillation Amplitude of steel plate is amplified, improve the precision of amplitude measurement, the Central Symmetry of bottom surface, reed top arranges two foil gauges, powered by power interface, process strain data calculated amplitude by data processing module 6, and amplitude is shown in real time by display.
Claims (5)
1. a displacement amplitude survey sensor, it is characterized in that: comprise base and outer cover, enclosure space is formed between described base and outer cover, column and reed are installed in described enclosure space, the bottom of shown column is fixedly connected with base, the top of described column is fixedly connected with one end of reed, and the other end of described reed is provided with oscillator, and the both sides up and down in the middle part of described reed are provided with a pair foil gauge.
2. a kind of displacement amplitude survey sensor according to claim 1, is characterized in that: described base is magnetic bases.
3. a kind of displacement amplitude survey sensor according to claim 1, is characterized in that: described column is vertical Metallic rod.
4. a kind of displacement amplitude survey sensor according to claim 1, is characterized in that: described outer cover is made up of hemispheric top and columniform bottom, and described bottom is sheathed on base.
5. a kind of displacement amplitude survey sensor according to claim 1, is characterized in that: described strainometer is connected to data processing module, described data processing module integrated display and power interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820771.5U CN205066924U (en) | 2015-10-23 | 2015-10-23 | Displacement amplitude measuring transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820771.5U CN205066924U (en) | 2015-10-23 | 2015-10-23 | Displacement amplitude measuring transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066924U true CN205066924U (en) | 2016-03-02 |
Family
ID=55393466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520820771.5U Expired - Fee Related CN205066924U (en) | 2015-10-23 | 2015-10-23 | Displacement amplitude measuring transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441549A (en) * | 2016-09-13 | 2017-02-22 | 南昌大学 | Vibration sensor fixing device with weather-proof function |
| CN108414080A (en) * | 2018-06-11 | 2018-08-17 | 河北冀研能源科学技术研究院有限公司 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
-
2015
- 2015-10-23 CN CN201520820771.5U patent/CN205066924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441549A (en) * | 2016-09-13 | 2017-02-22 | 南昌大学 | Vibration sensor fixing device with weather-proof function |
| CN106441549B (en) * | 2016-09-13 | 2023-04-07 | 南昌大学 | Vibration sensor fixing device with weather proof function |
| CN108414080A (en) * | 2018-06-11 | 2018-08-17 | 河北冀研能源科学技术研究院有限公司 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20181023 |