CN201203608Y - Detection device for soil impact signal - Google Patents
Detection device for soil impact signal Download PDFInfo
- Publication number
- CN201203608Y CN201203608Y CNU2008200811707U CN200820081170U CN201203608Y CN 201203608 Y CN201203608 Y CN 201203608Y CN U2008200811707 U CNU2008200811707 U CN U2008200811707U CN 200820081170 U CN200820081170 U CN 200820081170U CN 201203608 Y CN201203608 Y CN 201203608Y
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- China
- Prior art keywords
- soil
- impact
- sensor
- guide rod
- handle
- Prior art date
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- Expired - Fee Related
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- 239000002689 soil Substances 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 title claims description 6
- 230000004044 response Effects 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 9
- 230000035939 shock Effects 0.000 claims description 18
- 230000001133 acceleration Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a detecting device for soil impact signals. The soil impact signal detector comprises a handle, an impact hammer guide rod, an impact hammer, a sensor support and an impact probe, wherein the handle, the impact hammer guide rod, and impact hammer, the sensor support and the impact probe are successively connected, and the sensor is disposed on the sensor support. When detecting, a soil impact single collected by the sensor is transmitted to a charge amplifier via a lead, then to a data collecting card after amplified, and finally the impact response of soil is obtained by a data processing module. The data is substituted to an experience formula summarized by a large amount of experiment data, and then the density, compactness and other physical characteristics of soil are calculated, thus greatly improving the detecting accuracy and speed. The detector is simple and convenient for operation.
Description
Technical field
The utility model relates to a kind of soil physical property detection technique, specifically soil impact signal pick-up unit.
Background technology
The measuring method of physical characteristics such as soil density and compactness and instrument majority all are Purely mechanicals, but because when using pure mechanical mechanism that physical characteristicss such as the density of field soil and compactness are measured, all be by the operator instrument to be applied acting force to come the effect counter-force of measured soil mostly to instrument, as miniature penetrometer of WGI type mechanical type etc., all be subjected to the human factor influence in the process of soil physical property being carried out with such method and apparatus, thereby often have the deficiencies such as misregister of measurement result.
Summary of the invention
The purpose of this utility model provide a kind of based on soil shock Response Analysis and processing soil density and the soil impact signal pick-up unit of physical characteristics such as compactness.Artificial action influence when measuring process can be eliminated soil surveying, the confidence level of increase measurement result.
The utility model technical scheme of the present invention is:
Soil impact signal pick-up unit of the present utility model is made up of with, sensor support base, sensor and impact probe etc. handle, ram hammer guide rod, ram hammer, handle, ram hammer guide rod, ram hammer, sensor support base, impact probe connect successively, sensor places on the sensor support base, but on this bearing sensor installation (B﹠amp; K4370 type acceleration transducer); Sensor connects charge amplifier, and charge amplifier connects data collecting card, and data collecting card connects data processing module.Promptly by B﹠amp; The soil shock response signal of K4370 sensor acquisition is delivered to B﹠amp by lead; K2635 type charge amplifier, signal is delivered to PCI-6024E type data collecting card after amplifying, finally the shock response that draws soil by data processing module.
The utility model adopts acceleration transducer to detect the shock response of different soils under identical percussive action, judges physical characteristicss such as the density of soil and compactness according to the difference of shock response.This device is in measuring process, the freely falling body of ram hammer produces constant momentum to instrument, acceleration transducer detects the shock response of soil under this momentum effect, determine the size of physical characteristicss such as soil density and compactness according to the shock response situation, draw more accurate soil correlation parameter.The shock response of soil can be detected effectively, fields such as agricultural land soil density and compactness detection can be used for.
The advantage that the utility model has compared with the prior art is: the method that soil is impacted in utilization detects soil shock response signal, introducing acceleration transducer detects, the acceleration signal that records carries out feature extraction by data acquisition and analysis module, draw the related data of soil shock response after handling by analysis, the experimental formula that this data substitution is summed up by a large amount of experimental datas, finally calculate physical characteristicss such as the density of soil and compactness, improved accuracy of detection and speed widely.This detector is simple in structure, and is easy to operate.
Description of drawings
Fig. 1 is a soil shock response signals collecting block diagram of the present utility model.
Fig. 2 is a soil impact signal pick-up unit structural representation of the present utility model.
Among the figure: 1, handle, 2, (ram hammer) guide rod, 3, ram hammer, 4, the ram hammer base, 5, sensor support base, 6, sensor installs screw thread, 7, probe.
Embodiment
Soil shock response checking device of the present utility model: by a handle 1, (ram hammer) guide rod 2, along the ram hammer 3 that this guide rod can be free to slide, sensor support base 5 and impact probe 7 are formed; Ram hammer is enclosed within on the guide rod, and the guide rod two ends are fixed up in the mode that is threaded by handle 1 and ram hammer base 4 respectively; On the sensor support base acceleration transducer pressed axial restraint on it, the binding post of sensor connects by special wire and data acquisition and data analysis module, and installable sensor is B﹠amp on this bearing; K4370 type acceleration transducer.By B﹠amp; The soil shock response signal of K4370 sensor acquisition is delivered to B﹠amp by lead; K2635 type charge amplifier, signal is delivered to PCI-6024E type data collecting card after amplifying, finally the shock response that draws soil by data processing module.
During use:
At first this instrument is stood on the soil to be measured vertically, hand steered handle, ram hammer is moved to the handle place to be decontroled, ram hammer is done the movement of falling object from the guide rod top, up to bumping with sensor support base, impact probe pours in the soil under the effect of this momentum, sensor is then measured the whole acceleration that pours process, data acquisition and data analysis module are then noted the soil shock response in the whole process, and the data of gathering are done further analytical calculation, draw the related data of soil shock response, finally go out physical characteristicss such as soil density and compactness according to these data computation.
Claims (4)
1, a kind of soil impact signal pick-up unit, it is characterized in that forming with, sensor support base, sensor and impact probe etc. by handle, ram hammer guide rod, ram hammer, fixed punch hammer guide rod on the handle, and the ram hammer that is free to slide along the ram hammer guide rod, the other end of guide rod is a sensor support base, with handle ram hammer is limited on the guide rod, connects impact probe below the fixation of sensor on the sensor support base, bearing; Sensor connects charge amplifier, and charge amplifier connects data collecting card, and data collecting card connects data processing module.
2, soil shock response pick-up unit according to claim 1 is characterized in that described sensor is B﹠amp; K4370 type acceleration transducer.
3, with the detection method of the described soil shock response of claim 1 pick-up unit, it is characterized in that described charge amplifier is B﹠amp; The K2635 type.
4, detection method according to claim 2 is characterized in that described data collecting card letter is the PCI-6024E type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200811707U CN201203608Y (en) | 2008-05-08 | 2008-05-08 | Detection device for soil impact signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200811707U CN201203608Y (en) | 2008-05-08 | 2008-05-08 | Detection device for soil impact signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203608Y true CN201203608Y (en) | 2009-03-04 |
Family
ID=40425920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200811707U Expired - Fee Related CN201203608Y (en) | 2008-05-08 | 2008-05-08 | Detection device for soil impact signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203608Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155501A (en) * | 2015-08-21 | 2015-12-16 | 中南大学 | Handheld type roadbed bevel compactness measuring instrument |
| CN106885747A (en) * | 2017-04-10 | 2017-06-23 | 东北农业大学 | Soil injection characteristic measurement method and device based on instantaneous acceleration detection |
| CN107219134A (en) * | 2017-07-03 | 2017-09-29 | 中国人民解放军军械工程学院 | Terra mechanics parameter test device |
-
2008
- 2008-05-08 CN CNU2008200811707U patent/CN201203608Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155501A (en) * | 2015-08-21 | 2015-12-16 | 中南大学 | Handheld type roadbed bevel compactness measuring instrument |
| CN106885747A (en) * | 2017-04-10 | 2017-06-23 | 东北农业大学 | Soil injection characteristic measurement method and device based on instantaneous acceleration detection |
| CN107219134A (en) * | 2017-07-03 | 2017-09-29 | 中国人民解放军军械工程学院 | Terra mechanics parameter test device |
| CN107219134B (en) * | 2017-07-03 | 2024-01-30 | 中国人民解放军军械工程学院 | Ground mechanical parameter testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20120508 |