CN106802340A - For the wireless measurement device and method of mining similar material simulation experiment - Google Patents
For the wireless measurement device and method of mining similar material simulation experiment Download PDFInfo
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- CN106802340A CN106802340A CN201710080963.0A CN201710080963A CN106802340A CN 106802340 A CN106802340 A CN 106802340A CN 201710080963 A CN201710080963 A CN 201710080963A CN 106802340 A CN106802340 A CN 106802340A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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Abstract
Disclose a kind of wireless measurement device and its measuring method for mining similar material simulation experiment,Sensor (7) includes the flexible member (14) being in close contact with upper loading plate (4) and lower loading plate (6) and the deformation detection element (15) of detection flexible member (14) deformation,Upper loading plate (4) and lower loading plate (6) are positioned by connecting bolt (2) and flexible member (14) cause that the load being applied on loading plate (4) acts on flexible member (14) respectively,Deformation detection element (15) generates measurement signal,Data acquisition module (8) connects the sensor (7) to gather the measurement signal,Wireless communication module (9) with antenna (1) connects the data acquisition module (8) to be wirelessly transferred measurement signal,Antenna (1) stretches out between upper loading plate (4) and containment vessel (10).
Description
Technical field
The present invention relates to equivalent material simulating field, particularly a kind of nothing for mining similar material simulation experiment
Line measurement apparatus and its measuring method.
Background technology
Similar material simulation experiment is widely used in mining engineering field, in experimentation, how using advanced test
It is Success in Experiment whether key point that method obtains true and reliable experimental data, real-time monitoring stope front and back,
Pressure law in stope lower section and stope rear coal body, can to work on the spot face ground pressure strength and
Water component is made to predict, is that Support selection etc. provides scientific basis.At present, in similar material simulation experiment, for monitoring
The sensor of coal seam overlying strata pressure test is generally relatively large sized wired sensor, meanwhile, outside is equipped with data collecting instrument
And software, whole system is complex, and inconvenience is brought to experiment, in order to overcome the shortcomings of existing dynamometric system, have developed
A kind of less wireless force cell of size.
A kind of wireless and passive pre-stress sensor disclosed in patent document CN104614103 A, for detecting building structure
In prestressed, reinforced change information, be made up of radio-frequency module, power module, data module and modulation module；Signal is by outside
Equipment is launched, and sensor is reached via radio-frequency module, and burning voltage is treated as whole sensor power by power module,
The analog signal that data module will be collected is converted into data signal, and modulated module is modulated data in radiofrequency signal,
Demodulated by external equipment and obtained.The patent is realized carrying out the health built regular or length in the light mode of wireless and passive
The detection of phase, but the patent does not have upper and lower loading plate, it is impossible to the load that accurate measurement is born, and wireless signal is faint, practicality
Difference, the operability of the patent is poor, it is impossible to learn whether the working condition that is located in building structure, signal are normal etc..
A kind of equivalent material simulating tomography experimental rig disclosed in patent document CN106128259 A includes framework, described
Framework includes entablature, sill and lateral column, and clamping plate is installed on the sill, and the clamping plate can be slided simultaneously on sill
Can be fixed on sill, the clamping plate is hinged rotor plate, the rotor plate center sets elongated slot, and being installed in the elongated slot can edge
The T-shaped plate that elongated slot is slided, the T-shaped plate includes space bar and limiting plate, and the entablature lower section is fixedly installed two crossbeam branch
Support beam, the lateral column inner side is fixedly installed two lateral column support beams, the vertically-mounted compression system in the entablature lower section, described two
Lateral column inner side is transversely mounted compression system, and the left and right sides post inner side is respectively provided with baffle plate supporting plate, the baffle plate supporting plate
It is mobilizable on lower and upper cross-member and vertically crossbeam to horizontally slip, gear is installed between two baffle plate supporting plates of the left and right
Plate, the baffle plate can horizontally slip relative to two baffle plate supporting plates；The compression system includes hold-down devices, two upper top dresses
Put, bracket, pressurization backing plate, pressure sensor and processor, the bracket includes base plate and two sides being fixedly connected with base plate
The wing, the piston rod of the hold-down devices is withstood on the base plate of bracket downwards, and the piston rod of upper ejection device withstands on the side of bracket upwards
Wing lower section, bracket lower section sets pressurization backing plate, and pressure sensor is set between pressurization backing plate and bracket, and the pressure sensor connects
Connect processor, the hold-down devices and upper ejection device connection processor；The cylinder barrel of the hold-down devices of vertically-mounted compression system
It is fixedly mounted on entablature, the cylinder barrel of upper ejection device is fixedly mounted on cross beam support beam, the compression system being transversely mounted
The cylinder barrel of hold-down devices is fixedly mounted on lateral column, and the cylinder barrel of two upper ejection devices is fixedly mounted in two side columns support beam.Should
The actual pressure that patent applies is approached with theoretical pressure, and the measurement result of experiment is accurate, but the patent structure is complicated, it is impossible to portable
Ground obtains detection signal, and wireless signal is faint, poor practicability, and the operability of the patent is poor, it is impossible to learns to be located at and builds
Whether working condition, signal in building structure are normal etc..
A kind of intensity of similar material model monitoring device disclosed in patent document CN103399505 A, the analog material mould
Test module needed for type strength-monitoring device includes single-chip computer AT89C52, buzzer BUZ1, temperature sensor DS18B20, liquid crystal
Display AMPIRE128X64 and humidity sensor SHT11, described single-chip computer AT89C52 totally 39 pins, XTAL1 pins and
XTAL2 pins are connected to the crystal oscillator X1 two ends of 11.0592Mhz, and series capacitance C1 and electric capacity respectively by wire respectively
It is grounded altogether after C2, constitutes parallel oscillatory circuit, wherein electric capacity C1 and electric capacity C2 is the ceramic disc capacitor of 30uf, is for smooth starting of oscillation sets
Put；Single-chip microcomputer RST pins are reset signal end, and the resistance R2 of connection 10K Ω is followed by ground end, makes by 0 signal is kept herein
Single-chip microcomputer normal work；The RST pins of single-chip computer AT89C52 are connected by electrochemical capacitor C3 with one end of buzzer BUZ1, honeybee
The colelctor electrode of ring device other end connection NPN type triode Q1, the emitter grounding of triode Q1 is accessed single after base stage connection resistance R3
P2.3 mouthfuls of piece machine, the buzzer BUZ1 is used for humidity to threshold value alarm；Temperature sensor includes VCC, DQ and GND
Three pins, VCC ends are power end, 5V power supplys are accessed, while VCC pin accesses DQ after connecting 4.7K Ω pull-up resistors R1
Pin, data pin DQ ends separately connect single-chip microcomputer P2.0 ports, and GND ends are earth terminal, are directly grounded；Liquid crystal display
AMPIRE128X64 totally 18 pins, external 5V power supplys, liquid crystal display are together accessed in wherein RST pins, RS pins and VCC ends
Device AMPIRE128X64 needs the both threads to carry out Serial Control, and E is terminated into single-chip microcomputer P2.2 ports, and R/W is terminated into single-chip microcomputer
P2.1 ports；Single-chip microcomputer P3.6 ports are accessed in the SCK ports of humidity sensor SHT11, and DATA data terminals access single-chip microcomputer P3.7
Port；S1-S4 is 4 buttons, respectively execution+1, -1, displacement and recovery initial value function, and button S1 passes through pull-up resistor R4 and list
The P0.0 ports of piece machine are connected, and button S2 is connected by pull-up resistor R5 with the P0.1 ports of single-chip microcomputer, and button S3 passes through
Pull-up resistor R6 is connected with the P0.2 ports of single-chip microcomputer, and button S4 is connected by pull-up resistor R7 with the P0.3 ports of single-chip microcomputer
It is logical.The patent can be realized accurately controlling the drying number of days of model, but the patent does not have upper and lower loading plate, it is impossible to essence
The load born really is measured, and wireless signal is faint, poor practicability, the operability of the patent is poor, it is impossible to learns and is located at
Whether working condition, signal in building structure are normal etc..
Disclosed above- mentioned information is used only for understanding of the enhancing to background of the present invention in the background section, it is thus possible to
Information comprising prior art known to a person of ordinary skill in the art in not constituting home.
The content of the invention
In view of the above problems, it is an object of the invention to provide a kind of nothing for mining similar material simulation experiment
Line measurement apparatus and its measuring method, wireless measurement device are determined without experiment advance rower every time, and size sensor is relatively small,
Can realize preferably coupling with analog material, reduce influence of the model close beta element to experimental result, pickup wire
Property degree it is good, certainty of measurement is high, and measurement data is true and reliable, reduces acquisition Instrumen and connecting line, and system architecture is simple, reduces
Equipment fault.
The purpose of the present invention is to be achieved by the following technical programs.
A kind of one aspect of the present invention, wireless measurement device for mining similar material simulation experiment includes using
In the guarantor for carrying the upper loading plate of similar material model weight, lower loading plate and be located between the upper loading plate and lower loading plate
Protective case, the lower loading plate provides smooth load-bearing surface, and sensor, data acquisition module and wireless are provided with the containment vessel
Communication module, the sensor includes the flexible member being in close contact with the upper loading plate and lower loading plate and detects the bullet
Property deformed element deformation detection element, the upper loading plate and lower loading plate pass through connecting bolt and the flexible member respectively
Positioning causes that the load being applied on the upper loading plate acts on flexible member, the deformation detection element generation measurement letter
Number, data acquisition module connects the sensor to gather the measurement signal, the wireless communication module connection institute with antenna
Data acquisition module is stated to be wirelessly transferred measurement signal, the antenna stretches out between upper loading plate and containment vessel, for indicating
Whether normal signal lamp connects the wireless communication module for communication, for the SR for resetting and for opening for switching
Button electrical connection sensor is closed, the signal lamp, SR and shift knob are located at containment vessel side.
Preferably, rechargeable battery, the rechargeable battery electrical connection sensor, data acquisition are provided with the containment vessel
Module and wireless communication module.
Preferably, the side of containment vessel is provided with charging socket, and the charging socket electrically connects the rechargeable battery.
Preferably, the flexible member is aluminium alloy plate, and the deformation detection element is bridge type force-sensing sensor, described
Bridge type force-sensing sensor includes the first half-bridge strain ga(u)ge set up separately between upper loading plate and flexible member and is located at bullet
Second half-bridge strain ga(u)ge of the property between element and lower loading plate.
Preferably, the width of the aluminium alloy plate is not more than the width of the upper loading plate, the width of the aluminium alloy plate
Less than the length of the upper loading plate, the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as 45 degree of half-bridges of wire grid
Strain ga(u)ge, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than 0.05%F.S.
Preferably, the data acquisition module includes the A/ for measurement signal to be converted to data signal by analog signal
D conversion chips and the single-chip microcomputer for signal transacting, the display resolution of the data acquisition module is 0.01kg, sampling rate
It is 5 times/s.
Preferably, the wireless communication module includes 2.4G wireless communication units and USB communication interface, the usb communication
Interface is arranged in containment vessel side.
Preferably, the external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm, and range is
100kg。
Preferably, by thickness by the steel plate of 9mm is made, the rechargeable battery is for the upper loading plate and lower loading plate
7.4V/1000mAh lithium ion batteries, the data acquisition module includes memory, and the memory includes one or more only
Read memory ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory EEPROM.
Another aspect of the present invention, it is a kind of to utilize the described wireless survey for mining similar material simulation experiment
The measuring method step for measuring device includes：
In first step：The lower loading plate of the wireless measurement device is placed on smooth load-bearing surface, analog material
Model is laid on loading plate.
In second step：Start sensor by shift knob, the sensor is based on deformation generation measurement signal, and data are adopted
Collection module gathers the measurement signal, and wireless communication module is wirelessly transferred measurement signal.
In third step：Computer receives and parses through measurement signal, generates form display figure, the curve of the measurement signal
Display figure, data are preserved and/or historical data playback.
Described above is only the general introduction of technical solution of the present invention, in order to cause technological means of the invention clearer
Understand, reach the degree that those skilled in the art can be practiced according to the content of specification, and in order to allow the present invention
Above and other objects, features and advantages can become apparent, illustrated with specific embodiment of the invention below
Explanation.
Brief description of the drawings
By reading the detailed description in hereafter preferred embodiment, the present invention various other advantage and benefit
Will be clear understanding for those of ordinary skill in the art.Figure of description is only used for showing the purpose of preferred embodiment,
And it is not considered as limitation of the present invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.And in whole accompanying drawing, identical part is presented with like reference characters.
In the accompanying drawings：
Fig. 1 is the wireless measurement device for mining similar material simulation experiment according to an embodiment of the invention
Front view；
Fig. 2 is the wireless measurement dress for mining similar material simulation experiment in accordance with another embodiment of the present invention
The left view put；
Fig. 3 is the wireless measurement device for mining similar material simulation experiment according to an embodiment of the invention
Top view；
Fig. 4 is the wireless measurement device for mining similar material simulation experiment according to an embodiment of the invention
Schematic cross-section；
Fig. 5 is the wireless measurement being applicable for mining similar material simulation experiment according to an embodiment of the invention
The step of measuring method of device schematic diagram.
The present invention is further explained below in conjunction with drawings and Examples.
Specific embodiment
Specific embodiment of the invention is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing of the invention
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without that should be limited by embodiments set forth here
System.Conversely, there is provided these embodiments are able to be best understood from the present invention, and can be complete by the scope of the present invention
Convey to those skilled in the art.
It should be noted that having used some vocabulary to censure specific components in the middle of specification and claim.Ability
Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right
It is required that not in the way of the difference of noun is used as distinguishing component, but the difference with component functionally is used as what is distinguished
Criterion.As the "comprising" in specification in the whole text and claim mentioned in or " including " be an open language, therefore should solve
It is interpreted into " include but be not limited to ".Specification subsequent descriptions to implement better embodiment of the invention, so the description be with
For the purpose of the rule of specification, the scope of the present invention is not limited to.Protection scope of the present invention is when regarding appended right
It is required that defined person is defined.
For ease of the understanding to the embodiment of the present invention, further solved by taking specific embodiment as an example below in conjunction with accompanying drawing
Explanation is released, and each accompanying drawing does not constitute the restriction to the embodiment of the present invention.
In order to more fully understand, Fig. 1-4 is according to an embodiment of the invention for mining equivalent material simulating
The front view of the wireless measurement device of experiment, left view, top view and schematic cross-section, one kind are used for mining analog material
The wireless measurement device of simulated experiment holds including the upper loading plate 4 for carrying analog material, under the smooth load-bearing surface of offer
Support plate 6 and the containment vessel 10 being located between the upper loading plate 4 and lower loading plate 6, be provided with the containment vessel 10 sensor 7,
Data acquisition module 8 and wireless communication module 9, the sensor 7 include closely being connect with the upper loading plate 4 and lower loading plate 6
The deformation detection element 15 of the tactile flexible member 14 and detection deformation of flexible member 14, the upper loading plate 4 and lower carrying
Plate 6 is positioned by connecting bolt 2 and the flexible member 14 cause that the load being applied on the upper loading plate 4 is acted on respectively
Flexible member 14, the deformation detection element 15 generates measurement signal, and data acquisition module 8 connects the sensor 7 to gather
The measurement signal, the wireless communication module 9 with antenna 1 connects the data acquisition module 8 to be wirelessly transferred measurement signal,
The antenna 1 is stretched out between upper loading plate 4 and containment vessel 10, and for indicating communication, whether normal signal lamp 11 is connected
The wireless communication module 9, the shift knob 13 for the SR 12 for resetting and for switching electrically connects sensor 7, institute
State signal lamp 11, SR 12 and shift knob 13 and be located at the side of containment vessel 10.
In one embodiment, in for the wireless measurement device of mining similar material simulation experiment, when sensor 7
During carrying, there is resistance variations, and then output voltage signal, data acquisition in the strain ga(u)ge for being pasted on deformed area with deformation
The analog signal of sensor is converted to data signal by module 8, and after being controlled and changing through wireless communication module 9 with calculate
Machine TT＆C software is communicated, and computer software for measurement and control is parsed to measurement data, shown and processed.Built-in lithium battery 3 is
Sensor 7 and data acquisition module 8, wireless communication module 9 provide power supply.Charging socket 5 is used for battery charging and uses, meanwhile, when
It is available for alternating current to use when battery electric quantity is not enough in experimentation.Length presses upper electricity by shift knob 13 to the bright rear sensor of indicator lamp
Work, shuts down by the sensor of SR 12.Signal lamp 11 is used to point out sensor communication normal or abnormal, works as sensor
Signal lamp 11 is shown in green when communicating normal, and in flicker state, when sensor communication abnormality, signal lamp shows
It is shown as red.
In one embodiment, rechargeable battery 3 is provided with the containment vessel 10, the electrical connection of the rechargeable battery 3 is passed
Sensor 7, data acquisition module 8 and wireless communication module 9.
In one embodiment, the side of containment vessel 10 is provided with charging socket 5, the charging socket 5 electrically connect it is described can
Rechargeable battery 3.
In one embodiment, the flexible member 14 is aluminium alloy plate, and the deformation detection element 15 is bridge type power
Dependent sensor, the bridge type force-sensing sensor includes setting up separately the first half-bridge electricity between upper loading plate 4 and flexible member 14
Resistance strain gauge and the second half-bridge strain ga(u)ge being located between flexible member 14 and lower loading plate 6.
In one embodiment, the width of the aluminium alloy plate is not more than the width of the upper loading plate 4, the aluminium alloy
Less than the length of the upper loading plate 4, the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as 45 degree to the width of plate
The half-bridge strain ga(u)ge of wire grid, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than
0.05%F.S.
In one embodiment, the data acquisition module 8 is included for measurement signal to be converted into number by analog signal
The A/D conversion chips and the single-chip microcomputer for signal transacting of word signal, the display resolution of the data acquisition module 8 is
0.01kg, sampling rate is 5 times/s.
In one embodiment, the wireless communication module 9 includes 2.4G wireless communication units and USB communication interface, institute
State USB communication interface and be arranged in containment vessel side.
In one embodiment, the external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm,
Range is 100kg.
In one embodiment, the upper loading plate 4 and lower loading plate 6 by thickness by the steel plate of 9mm is made, it is described can
Rechargeable battery 3 is the lithium ion battery of 7.4V/1000mAh, and the data acquisition module 8 includes memory, the memory bag
Include one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable may be programmed it is read-only
Memory EEPROM.
Fig. 5 for described in the utilizing of one embodiment of the present of invention for the wireless of mining similar material simulation experiment
The step of measuring method of measurement apparatus schematic diagram.
As shown in figure 5, using the measurement of the described wireless measurement device for mining similar material simulation experiment
Method includes：
In first step：The lower loading plate 6 of the wireless measurement device is placed on smooth load-bearing surface, analog material
Model is laid on loading plate 4.
In second step：Start sensor 7 by shift knob 13, the sensor 7 is based on deformation generation measurement signal, number
The measurement signal is gathered according to acquisition module 8, wireless communication module 9 is wirelessly transferred measurement signal.
In third step：Computer receives and parses through measurement signal, generates form display figure, the curve of the measurement signal
Display figure, data are preserved and/or historical data playback.
Wireless measurement device of the invention and its measuring method have the advantage that.
1. the wireless measurement device reduces the influence that cable is mated formation to model, simplifies model paving process, makes model
Mat formation convenient and easy.
2. the sensor is determined without experiment advance rower every time, need to only be reset by TT＆C software, operation letter
It is single quick, greatly reduce the working strength of experimenter.
3. data transfer is completed by the sensor external only needs a data sink to be connected with computer measurement and control, is reduced
Acquisition Instrumen and connecting line, system architecture are simple, reduce equipment fault.
4. the size sensor is relatively small, can realize preferably coupling with analog material, reduces model inside and surveys
Influence of the examination element to experimental result.
5. the sensor linearity is good, and certainty of measurement is high, and measurement data is true and reliable.
6. whether the sensor is furnished with signal lamp, communication can be pointed out normal, saves the time of malfunction elimination.
7. the sensor power is convenient, you can with built-in lithium battery for it is powered, and when battery electric quantity is not enough, can also use
AC-powered.
8. the sensor surface has done water-proofing treatment, in case getting rusty with similar material model reclaimed water to the shadow of sensor performance
Ring.
Although being described to embodiment of the present invention above in association with accompanying drawing, the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment is only schematical, guiding, rather than restricted
's.One of ordinary skill in the art is under the enlightenment of this specification and is not departing from the scope that the claims in the present invention are protected
In the case of, the form of many kinds can also be made, these belong to the row of protection of the invention.
Claims (10)
1. a kind of wireless measurement device for mining similar material simulation experiment, it is included for carrying analog material mould
The upper loading plate (4) of type weight, lower loading plate (6) and the containment vessel being located between the upper loading plate (4) and lower loading plate (6)
(10), the lower loading plate (6) provides in smooth load-bearing surface, the containment vessel (10) and is provided with sensor (7), data acquisition
Module (8) and wireless communication module (9), it is characterised in that：The sensor (7) including with the upper loading plate (4) and under hold
Flexible member (14) and detect the deformation detection element (15) that the flexible member (14) deforms that support plate (6) is in close contact, institute
Loading plate (4) and lower loading plate (6) is stated to be positioned so that being applied to the flexible member (14) by connecting bolt (2) respectively
Load on the upper loading plate (4) acts on flexible member (14), and the deformation detection element (15) generates measurement signal, number
The sensor (7) is connected to gather the measurement signal according to acquisition module (8), the wireless communication module (9) with antenna (1)
Connect the data acquisition module (8) to be wirelessly transferred measurement signal, the antenna (1) is from upper loading plate (4) and containment vessel
(10) stretched out between, for indicating communication, whether normal signal lamp (11) connects the wireless communication module (9), is used for
The SR (12) of reset and the shift knob (13) electrical connection sensor (7) for switching, the signal lamp (11),
SR (12) and shift knob (13) are located at containment vessel (10) side.
2. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In being provided with rechargeable battery (3) in, it is preferred that the containment vessel (10), the rechargeable battery (3) electrically connect sensor (7),
Data acquisition module (8) and wireless communication module (9).
3. the wireless measurement device for mining similar material simulation experiment according to claim 2, its feature exists
In：The side of containment vessel (10) is provided with charging socket (5), and the charging socket (5) electrically connects the rechargeable battery (3).
4. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In：The flexible member (14) is aluminium alloy plate, and the deformation detection element (15) is bridge type force-sensing sensor, the electric bridge
Formula force-sensing sensor includes the first half-bridge strain ga(u)ge set up separately between upper loading plate (4) and flexible member (14) and is located at
The second half-bridge strain ga(u)ge between flexible member (14) and lower loading plate (6).
5. the wireless measurement device for mining similar material simulation experiment according to claim 4, its feature exists
In：The width of the aluminium alloy plate is not more than the upper loading plate.(4) width, the width of the aluminium alloy plate is less than described
The length of upper loading plate (4), the first half-bridge strain ga(u)ge and the second half-bridge resistance-strain are calculated as 45 degree of half resistor bridges of wire grid
Strain gauge, the output sensitivity of the bridge type force-sensing sensor is 2.0mV/V, and synthesis precision is better than 0.05%F.S.
6. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In：The data acquisition module (8) includes the A/D conversion chips for measurement signal to be converted to data signal by analog signal
With the single-chip microcomputer for signal transacting, the display resolution of the data acquisition module (8) is 0.01kg, sampling rate is 5 times/
s。
7. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In：The wireless communication module (9) includes 2.4G wireless communication units and USB communication interface, and the USB communication interface is arranged in
Containment vessel side.
8. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In：The external dimensions of the wireless measurement device is a height of 200mm × 30mm of length and width × 40mm, and range is 100kg.
9. the wireless measurement device for mining similar material simulation experiment according to claim 1, its feature exists
In：, by thickness by the steel plate of 9mm is made, the rechargeable battery (3) is for the upper loading plate (4) and lower loading plate (6)
The lithium ion battery of 7.4V/1000mAh, including memory, the memory includes one or many to the data acquisition module (8)
Individual read only memory ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory
EEPROM。
10. a kind of wireless survey for mining similar material simulation experiment utilized any one of claim 1-9
The measuring method of device is measured, its step includes：
In first step：The lower loading plate (6) of the wireless measurement device is placed on smooth load-bearing surface, analog material mould
Type is laid on loading plate (4)；
In second step：Start sensor (7) by shift knob (13), the sensor (7) generates measurement signal based on deformation,
Data acquisition module (8) gathers the measurement signal, and wireless communication module (9) is wirelessly transferred measurement signal；
In third step：Computer receives and parses through measurement signal, generates the form display figure of the measurement signal, curve and shows
Figure, data are preserved and/or historical data playback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080963.0A CN106802340B (en) | 2017-02-15 | 2017-02-15 | Wireless measurement device and method for simulation experiment of similar materials in mining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080963.0A CN106802340B (en) | 2017-02-15 | 2017-02-15 | Wireless measurement device and method for simulation experiment of similar materials in mining |
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| Publication Number | Publication Date |
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| CN106802340A true CN106802340A (en) | 2017-06-06 |
| CN106802340B CN106802340B (en) | 2023-03-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792184A (en) * | 2022-12-01 | 2023-03-14 | 山东科技大学 | Wireless stress and displacement measurement system and method for similar material simulation experiment |
| CN115792184B (en) * | 2022-12-01 | 2024-05-24 | 山东科技大学 | Wireless stress and displacement measurement system and method for similar material simulation experiment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115792184A (en) * | 2022-12-01 | 2023-03-14 | 山东科技大学 | Wireless stress and displacement measurement system and method for similar material simulation experiment |
| CN115792184B (en) * | 2022-12-01 | 2024-05-24 | 山东科技大学 | Wireless stress and displacement measurement system and method for similar material simulation experiment |
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| CN106802340B (en) | 2023-03-03 |
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