CN110056749A - A kind of mounting and positioning device of Blasting Vibration Meter sensor - Google Patents
A kind of mounting and positioning device of Blasting Vibration Meter sensor Download PDFInfo
- Publication number
- CN110056749A CN110056749A CN201910334708.3A CN201910334708A CN110056749A CN 110056749 A CN110056749 A CN 110056749A CN 201910334708 A CN201910334708 A CN 201910334708A CN 110056749 A CN110056749 A CN 110056749A
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- Prior art keywords
- supporting plate
- bottom plate
- level
- plate
- bolt
- Prior art date
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- 238000005422 blasting Methods 0.000 title claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 239000011083 cement mortar Substances 0.000 claims abstract description 13
- 239000010440 gypsum Substances 0.000 claims abstract description 13
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
A kind of mounting and positioning device of Blasting Vibration Meter sensor belongs to engineering monitoring or experiment field of measuring technique.Including top positioning device, lower fastening device.Top positioning device includes supporting arrangement, air level and level regulating device；Supporting arrangement is connected by height adjusting screw rod, height adjustment nut with fixture nut；Air level is placed on supporting plate；Rotation height adjusting nut adjusts supporting plate height, is in a horizontal position sensor.Lower fastening device includes bottom plate and bracket；Bottom plate is connect with level regulating device by fixing bolt；Stabilizer blade is connect with bottom plate by fixing bolt.Bottom plate can pass through cement mortar or gypsum and the direct bonding connection of point to be monitored, or when it is to be monitored point monitoring condition it is poor, such as in the biggish situation of smooth locations difficulty such as the puddles of water, muddy ground, rubble accumulation, bottom plate and stabilizer blade can be bolted, stabilizer blade and point to be monitored can avoid above-mentioned bad condition by cement mortar or gypsum bonding connection.
Description
Technical field
The present invention relates to a kind of mounting and positioning devices for the rectangular velocity sensor of Blasting Vibration Meter, belong to engineering monitoring
With experiment field of measuring technique.
Background technique
Blasting Vibration Meter has been widely used in Blasting In Geotechnical engineering site vibration monitoring, and most of sensor shape is
It is rectangular, such as the most common TC-4850 and TC-4850N type vialog.Vialog measure three directions (vertical direction, longitudinal direction,
Vibration velocity laterally), it is thus necessary to determine that the direction that vibration-measuring sensor is put.According to monitoring field selected directions, there are larger mistakes
Difference not can guarantee the unification in direction then when vibration measuring point is more.In addition, being first by rock when existing rectangular velocity sensor is installed
Body back side pick is flat, or finds relatively flat position, velocity sensor bottom surface is contacted with rock mass, in velocity sensor and rock mass
Between also to fill a certain amount of cement mortar or gypsum, to guarantee uniform force and be firmly bonded.Due to no special peace
Fill positioning device, if the binders out-of-flatness such as mortar will lead to sensor can not horizontal setting so that monitoring error it is larger, cause
Monitoring efficiency is lower.Finally, the cleaning meeting wear sensor bottom of mortar, right when sensor recycles after the completion of monitoring
The durable use of sensor affects.The above various reasons cause the monitoring of blasting vibration that cannot really reflect project situation.
Therefore, it is necessary to design a kind of special mounting and positioning device, solves sensor and position inaccurate, insufficient contact, biography are installed
The problem of sensor durable use.
Summary of the invention
The present invention is that positioning present in rectangular Blasting Vibration Meter velocity sensor use process is inaccurate, contacts in order to solve
It is insufficient, durable can not use, and influence construction efficiency the problem of, invent a kind of installation of Blasting Vibration Meter velocity sensor
Positioning device.
The technical solution adopted by the present invention is a kind of mounting and positioning device of Blasting Vibration Meter velocity sensor, the device packet
Include top positioning device, lower fastening device.Top positioning device includes sensor supporting arrangement (1), air level (2) and level
Regulating device (3)；Support device (1) material is aluminium alloy, including two fixed plates (6) and one piece of supporting plate (7), supporting plate (7) exist
Below fixed plate (6), one of fixed plate (6) and supporting plate (7) weld together, and there are first for fixed plate (6) two sides side end
Bolt hole (9), the first bolt (8) are connected two fixed plates (6) by the first bolt hole (9), and two fixed plates (6) connect into
Sensor is fixed in cuboid frame when use and using the by one cuboid frame, the central axis supporting plate (7) of cuboid frame
One bolt (8) carries out fastening cuboid frame；Air level (2) is embedded into the surface of supporting plate (7), to detect supporting plate (7) or sensor
Whether it is horizontally arranged；Supporting plate is respectively kept with a screw rod hole (10) on (7) four angles, has by each screw rod hole (10)
One level regulating device (3) is vertical with supporting plate (7) to be connect, and it is horizontal high that supporting plate (7) is adjusted by level regulating device (3)
Degree, the water-saving Pingdu of a step of going forward side by side, so that bubble in air level (2) is made to be located at center.
4 level regulating devices (3) are shared, level regulating device (3) includes height adjusting screw rod (14), height adjustment spiral shell
Female (13), gasket (12), hold-doun nut (11)；For one of them, supporting plate (7) passes through screw rod hole (10) and height adjustment
Screw rod (14) vertically connects, and is equipped with hold-doun nut (11) in the upper surface of supporting plate (7) height adjusting screw rod (14) and is fixed；Rotation
Height adjustment nut (13) adjusts supporting plate (7) level height, makes bubble level in air level (2), the gasket of center band circular hole
(12) cover on height adjusting screw rod (14), along height adjusting screw rod (14) be followed successively by from bottom to top height adjustment nut (13),
Gasket (12), supporting plate (7), hold-doun nut are fixed (11), and gasket (12) is to reduce the frictional force of rotation height adjusting nut (13)；
The lower end of height adjusting screw rod (14) links together with regulating device pedestal (15) vertical welding, and regulating device pedestal (15) is logical
It crosses the second bolt (16) and the bottom plate (4) of lower fastening device B is fixed together, bottom plate (4) is located at regulating device pedestal (15)
Below.
Lower fastening device B includes bottom plate (4) and bracket (5)；Bottom plate (4) material is aluminium alloy, and bottom plate is reserved on (4)
Second bolt hole (17), regulating device pedestal (15) are connected using the second bolt (16) by the second bolt hole (17) and bottom plate (4)
It connects；Compass device (19) is embedded into the surface of bottom plate (4), to observed direction；Bottom plate (4) is equipped with third bolt hole (18)
It is fixedly connected by third bolt (20) with the upper end of bracket (5), bracket (5) is located at below bottom plate (4)；Bracket (5) is rigid
Property bracket, bracket (5) is stabilizer blade (21)；At least three brackets (5) are arranged below in bottom plate (4)；The lower end of bracket (5) can pass through
Cement mortar or the directly fixed bonding of gypsum and point to be monitored.
For the length and width of the cuboid frame of fixed plate (6) composition according to the size design of sensor, sensor can be compared with
It is put between fixed plate (6) and is bolted by bolt (8) securely.
Screw rod hole (10) diameter is greater than height adjusting screw rod diameter (14), and supporting plate (7) is made to adjust spiral shell with rotation height
Female (13) can move up and down, until reaching horizontality.
Bottom plate (4) can directly be bonded by cement mortar or gypsum with point to be monitored；When it is to be monitored point monitoring condition it is poor,
Such as in the biggish situation of smooth locations difficulty such as the puddles of water, muddy ground, rubble accumulation, bottom plate (4) and stabilizer blade can be passed through third spiral shell
Bolt (20) connection, stabilizer blade (21) and point to be monitored pass through cement mortar or gypsum bonding connection.
It is as follows using the embodiment process of the device:
1) the first bolt (8) are loosened, vibration-measuring sensor is put into the cuboid frame of two fixed plates (6) composition, is screwed
Fixing the first bolt (8) clamps two fixed plates (6), and vibration-measuring sensor is fixed；
2) judge whether to need according to compass device (19) adjustment direction according to specific operating condition；If desired adjustment direction,
It is then indicated according to compass device (19), device is adjusted to required direction；
3) after adjusting direction, this positioning device is placed in place to be monitored, observes air level (2) interior bubble position,
It adjusts height adjustment nut (13), supporting plate (7) level height is adjusted, until bubble is located at air level center (2), and revolve
Fasten nut (11)；After vibration-measuring sensor horizontal setting, vibration monitoring is carried out, collection apparatus simultaneously records data.
Bottom plate (4) can directly be bonded by cement mortar or gypsum with point to be monitored, and bond area is larger, is conducive to sense
Device is securely connect with point to be monitored.When it is to be monitored point monitoring condition it is poor, such as the puddles of water, muddy ground, rubble accumulation etc. smooth locations
In the biggish situation of difficulty, bottom plate (4) and stabilizer blade can be connect by third bolt (20), the lower end of stabilizer blade (21) with it is to be monitored
Point can avoid above-mentioned bad condition by cement mortar or gypsum bonding connection.
Bracket (5) is rigid support, and using low-carbon steel material, rigidity and intensity are preferable, are unlikely to deform, the survey to sensor
Vibration impacts very little.
Compass device (19) device dial plate material is rigid plastics, and air level (2) uses glass air level.
The present apparatus aims to solve the problem that existing installation position inaccurate, insufficient contact, biography when rock vialog sensor uses
The problem of sensor durable use.
Detailed description of the invention
Fig. 1 is device implementation figure.
Fig. 2 is the total perspective view of device.
Fig. 3 is device front view.
Fig. 4 is device left view.
Fig. 5 is device right view.
Fig. 6 is top positioning device perspective view.
Fig. 7 is lower fastening device perspective view.
Fig. 8 is fixed plate perspective view.
Fig. 9 is supporting plate perspective view.
Figure 10 is level regulating device perspective view.
Figure 11 is bottom plate perspective view.
Figure 12 is bracket perspective view.
Wherein, 1- supporting arrangement, 2- air level, 3- level regulating device, 4- bottom plate, 5- bracket, 6- fixed plate, 7- support
Plate, the first bolt of 8-, the first bolt hole of 9-, 10- screw rod hole, 11- fixture nut, 12- gasket, 13- height adjustment nut,
14- height adjusting screw rod, 15- height adjustment device pedestal, the second bolt of 16-, the second bolt hole of 17-, 18- third bolt hole,
19- compass device, 20- third bolt, 21- stabilizer blade.
Specific embodiment
The present invention is illustrated now in conjunction with attached drawing, attached drawing is schematic diagram, only the invention is illustrated in a schematic way base
This structure, but the present invention is not limited to following embodiments.
Embodiment 1
Fig. 1-12 indicates basic composition of the invention, and supporting arrangement 1 primarily serves the effect of bearing vibration-measuring sensor, and rises
To the effect being connect with level(l)ing device.
The length and width of fixed plate 6 can more securely be put into fixed plate 6 according to the size design of sensor, sensor
Between and bolted by bolt 8.
Judge whether to need according to 19 adjustment direction of compass device according to specific operating condition.If desired adjustment direction, then root
It is indicated according to compass device 19, device is adjusted to required direction.After adjusting direction, level is placed in be monitoredly
Point observes bubble position in air level 2, adjusts height adjustment nut 13, is adjusted to pallets level height, until bubble position
In air level center 2, vibration-measuring sensor is made to be in level.
Bottom plate 4 can directly be bonded by cement mortar or gypsum with point to be monitored, and bond area is larger, is conducive to sensor
It is securely connect with point to be monitored.When point monitoring condition to be monitored is poor, such as the smooth locations such as the puddles of water, muddy ground, rubble accumulation are difficult
It spends in biggish situation, bottom plate 4 can be connect with stabilizer blade by third bolt 20, stabilizer blade 21 and point to be monitored pass through cement mortar
Or gypsum bonding connection, above situation can be avoided.
Claims (7)
1. a kind of mounting and positioning device of Blasting Vibration Meter sensor, which is characterized in that the device include top positioning device, under
Device is fixed in portion；Top positioning device includes sensor supporting arrangement (1), air level (2) and level regulating device (3)；Including
Two fixed plates (6) and one piece of supporting plate (7), supporting plate (7) is below fixed plate (6), one of fixed plate (6) and supporting plate (7)
Weld together, there are the first bolt hole (9), the first bolts (8) to be incited somebody to action by the first bolt hole (9) for fixed plate (6) two sides side end
Two fixed plates (6) connection, two fixed plates (6) connect into a cuboid frame, the central axis supporting plate (7) of cuboid frame,
Sensor is fixed in cuboid frame when use and is fastened using the first bolt (8)；Air level (2) is embedded into supporting plate
(7) surface, to detect whether supporting plate (7) or sensor are horizontally arranged；Supporting plate is respectively kept with a screw hole on (7) four angles
Hole (10) has a level regulating device (3) is vertical with supporting plate (7) to connect, passes through level by each screw rod hole (10)
Regulating device (3) adjusts supporting plate (7) level height, the water-saving Pingdu of a step of going forward side by side, so that be located at bubble in air level (2)
Center；
4 level regulating devices (3) are shared, level regulating device (3) includes height adjusting screw rod (14), height adjustment nut
(13), gasket (12), hold-doun nut (11)；For one of them, supporting plate (7) passes through screw rod hole (10) and height adjustment spiral shell
Bar (14) vertically connects, and is equipped with hold-doun nut (11) in the upper surface of supporting plate (7) height adjusting screw rod (14) and is fixed；Rotation is high
Adjusting nut (13) are spent to adjust supporting plate (7) level height, make bubble level in air level (2), the gasket of center band circular hole
(12) cover on height adjusting screw rod (14), along height adjusting screw rod (14) be followed successively by from bottom to top height adjustment nut (13),
Gasket (12), supporting plate (7), hold-doun nut are fixed (11), and gasket (12) is to reduce the frictional force of rotation height adjusting nut (13)；
The lower end of height adjusting screw rod (14) links together with regulating device pedestal (15) vertical welding, and regulating device pedestal (15) is logical
It crosses the second bolt (16) and the bottom plate (4) of lower fastening device B is fixed together, bottom plate (4) is located at regulating device pedestal (15)
Below；
Lower fastening device B includes bottom plate (4) and bracket (5)；The second bolt hole (17), regulating device are reserved on bottom plate (4)
Pedestal (15) is connect by the second bolt hole (17) with bottom plate (4) using the second bolt (16)；Compass device (19) is embedded into
The surface of bottom plate (4), to observed direction；Bottom plate (4) is equipped with third bolt hole (18) and passes through third bolt (20) and bracket
(5) upper end is fixedly connected, and bracket (5) is located at below bottom plate (4)；Bracket (5) is rigid support, and bracket (5) is stabilizer blade
(21)；At least three brackets (5) are arranged below in bottom plate (4)；The lower end of bracket (5) can by cement mortar or gypsum with it is to be monitored
The directly fixed bonding of point.
2. a kind of mounting and positioning device of Blasting Vibration Meter sensor described in accordance with the claim 1, which is characterized in that fixed plate
(6) length and width of the cuboid frame formed can more securely be put into fixation according to the size design of sensor, sensor
It is bolted between plate (6) and by bolt (8).
3. a kind of mounting and positioning device of Blasting Vibration Meter sensor described in accordance with the claim 1, which is characterized in that screw hole
Hole (10) diameter is greater than height adjusting screw rod diameter (14), i.e., has gap between the two, make supporting plate (7) as rotation height is adjusted
Nut (13) can move up and down, until reaching horizontality.
4. a kind of mounting and positioning device of Blasting Vibration Meter sensor described in accordance with the claim 1, which is characterized in that bracket
It (5) is rigid support, using low-carbon steel material.
5. a kind of mounting and positioning device of Blasting Vibration Meter sensor described in accordance with the claim 1, which is characterized in that compass
(19) device dial plate material is rigid plastics, and air level (2) uses glass air level.
6. a kind of mounting and positioning device of Blasting Vibration Meter sensor described in accordance with the claim 1, which is characterized in that support dress
Setting (1) material is aluminium alloy.
7. a kind of mounting and positioning device embodiment method of Blasting Vibration Meter sensor described in any one of claims 1-6,
Characterized by comprising the following steps:
1) the first bolt (8) are loosened, vibration-measuring sensor is put into the cuboid frame of two fixed plates (6) composition, is tightened
First bolt (8) clamps two fixed plates (6), and vibration-measuring sensor is fixed；
2) judge whether to need according to compass device (19) adjustment direction according to specific operating condition；If desired adjustment direction, then root
It is indicated according to compass device (19), device is adjusted to required direction；
3) after adjusting direction, this positioning device is placed in place to be monitored, observes air level (2) interior bubble position, is adjusted
Height adjustment nut (13) is adjusted supporting plate (7) level height, until bubble is located at air level center (2), and screws solid
Determine nut (11)；After vibration-measuring sensor horizontal setting, vibration monitoring is carried out, collection apparatus simultaneously records data；
Bottom plate (4) is directly bonded by cement mortar or gypsum with point to be monitored；Or when monitoring condition to be monitored of putting is poor, the bottom of by
Plate (4) is connect with stabilizer blade by third bolt (20), and the lower end of stabilizer blade (21) and point to be monitored are viscous by cement mortar or gypsum
Knot connection, avoids above-mentioned bad condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334708.3A CN110056749A (en) | 2019-04-24 | 2019-04-24 | A kind of mounting and positioning device of Blasting Vibration Meter sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334708.3A CN110056749A (en) | 2019-04-24 | 2019-04-24 | A kind of mounting and positioning device of Blasting Vibration Meter sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056749A true CN110056749A (en) | 2019-07-26 |
Family
ID=67320535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910334708.3A Withdrawn CN110056749A (en) | 2019-04-24 | 2019-04-24 | A kind of mounting and positioning device of Blasting Vibration Meter sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056749A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110736537A (en) * | 2019-10-25 | 2020-01-31 | 长沙矿山研究院有限责任公司 | open stope blasting vibration accuracy measuring method |
| CN111042865A (en) * | 2019-12-10 | 2020-04-21 | 安徽理工大学 | Ground blasting vibration measurement method for water-containing crushed stone |
| CN111307275A (en) * | 2020-03-17 | 2020-06-19 | 河南工程学院 | Remote blasting vibration signal acquisition device |
| CN112378897A (en) * | 2020-11-05 | 2021-02-19 | 石家庄职业技术学院（石家庄广播电视大学） | Food production heavy metal detection device |
| CN114673879A (en) * | 2022-03-19 | 2022-06-28 | 北京澳丰源科技有限公司 | Mounting structure of receiver |
| CN116793473A (en) * | 2023-08-29 | 2023-09-22 | 淄博圣世达爆破工程有限公司 | Rock blasting vibration testing device |
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| CN111042865A (en) * | 2019-12-10 | 2020-04-21 | 安徽理工大学 | Ground blasting vibration measurement method for water-containing crushed stone |
| CN111042865B (en) * | 2019-12-10 | 2022-03-08 | 安徽理工大学 | Ground blasting vibration measurement method for water-containing crushed stone |
| CN111307275A (en) * | 2020-03-17 | 2020-06-19 | 河南工程学院 | Remote blasting vibration signal acquisition device |
| CN112378897A (en) * | 2020-11-05 | 2021-02-19 | 石家庄职业技术学院（石家庄广播电视大学） | Food production heavy metal detection device |
| CN112378897B (en) * | 2020-11-05 | 2023-03-10 | 石家庄职业技术学院（石家庄广播电视大学） | Food production heavy metal detection device |
| CN114673879A (en) * | 2022-03-19 | 2022-06-28 | 北京澳丰源科技有限公司 | Mounting structure of receiver |
| CN114673879B (en) * | 2022-03-19 | 2023-08-25 | 北京澳丰源科技有限公司 | Mounting structure of receiver |
| CN116793473A (en) * | 2023-08-29 | 2023-09-22 | 淄博圣世达爆破工程有限公司 | Rock blasting vibration testing device |
| CN116793473B (en) * | 2023-08-29 | 2023-11-07 | 淄博圣世达爆破工程有限公司 | Rock blasting vibration testing device |
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