CN107749721B - Road PZT (piezoelectric transducer), its power generation characteristics test device and energy storage experimental rig - Google Patents
Road PZT (piezoelectric transducer), its power generation characteristics test device and energy storage experimental rig Download PDFInfo
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- CN107749721B CN107749721B CN201710875859.0A CN201710875859A CN107749721B CN 107749721 B CN107749721 B CN 107749721B CN 201710875859 A CN201710875859 A CN 201710875859A CN 107749721 B CN107749721 B CN 107749721B
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000010248 power generation Methods 0.000 title claims abstract description 27
- 238000004146 energy storage Methods 0.000 title abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 239000002033 PVDF binder Substances 0.000 claims abstract description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 238000011068 loading method Methods 0.000 claims description 16
- 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 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000000227 grinding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/22—Methods relating to manufacturing, e.g. assembling, calibration
Abstract
The invention discloses a kind of road PZT (piezoelectric transducer)s, its power generation characteristics test device and energy storage experimental rig, including positive wire, cathode conductor, several first electrically-conductive backing plates and several second electrically-conductive backing plates, wherein, each first electrically-conductive backing plate and each second electrically-conductive backing plate successively cross-distribution from top to bottom, and several piezoelectric vibrators are provided between adjacent first electrically-conductive backing plate and the second electrically-conductive backing plate, wherein, the anode of each piezoelectric vibrator is in contact with the first electrically-conductive backing plate, the cathode of each piezoelectric vibrator is in contact with the second electrically-conductive backing plate, positive wire is connected with each first electrically-conductive backing plate, cathode conductor is connected with each second electrically-conductive backing plate；Piezoelectric vibrator is prepared by PZT and PVDF, and the PZT (piezoelectric transducer) bearing capacity, power generation performance and durability are preferable, which is able to detect the power generation characteristics of road PZT (piezoelectric transducer), which can simulate road PZT (piezoelectric transducer) power generation and energy storage.
Description
Technical field
The invention belongs to road PZT (piezoelectric transducer) technical field, it is related to a kind of road PZT (piezoelectric transducer), its power generation characteristics is surveyed
Trial assembly is set and energy storage experimental rig.
Background technique
The traveling of vehicle can make road surface generate a large amount of mechanical energy, if PZT (piezoelectric transducer) is embedded in road structure layer,
When vehicle driving is on highway, the piezoelectric vibrator in energy converter can be made to generate compression and restore deformation, then pass through transducing
Mechanical energy potential in road is recycled and is converted into power output and storage by device, this is to the production more clean energy of higher efficiency
It will be a great progress, however the bearing capacity of existing road PZT (piezoelectric transducer), power generation performance and durability are poor, because
This, needs the road PZT (piezoelectric transducer) of a kind of high bearing capacity, power generation performance and excellent durability, to meet road collection of energy
It needs.
In addition, currently, external vibration mechanical energy by the electric current that energy collecting device generates is alternating current, the disadvantage is that
Discontinuously, irregularly.In engineer application, it is necessary to design corresponding match circuit, using bridge rectifier, alternating current is turned
It is changed to direct current, the electric energy of generation is stored, the charging through certain time can supply external negative when reaching enough amounts
It carries and uses.The energy storage device and power generation characteristics test device to match therefore, it is necessary to a kind of and road PZT (piezoelectric transducer), with detection
The power generation characteristics of road energy converter, and the power generation and energy storage of simulation road energy converter.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of road PZT (piezoelectric transducer), its hair are provided
Electrical characteristics test device and energy storage experimental rig, the PZT (piezoelectric transducer) bearing capacity, power generation performance and durability are preferable, test dress
The power generation characteristics for being able to detect road PZT (piezoelectric transducer) are set, which can simulate road PZT (piezoelectric transducer) power generation and storage
Energy.
In order to achieve the above objectives, road PZT (piezoelectric transducer) of the present invention includes positive wire, cathode conductor, Ruo Gan
One electrically-conductive backing plate and several second electrically-conductive backing plates, wherein each first electrically-conductive backing plate and each second electrically-conductive backing plate are from top to bottom successively
Cross-distribution, and several piezoelectric vibrators are provided between adjacent first electrically-conductive backing plate and the second electrically-conductive backing plate, wherein each piezoelectricity vibration
Son anode be in contact with the first electrically-conductive backing plate, the cathode of each piezoelectric vibrator is in contact with the second electrically-conductive backing plate, positive wire and
Each first electrically-conductive backing plate is connected, and cathode conductor is connected with each second electrically-conductive backing plate；
Piezoelectric vibrator is prepared by PZT and PVDF.
The mass ratio of PZT and PVDF is 7:3.
The material of first electrically-conductive backing plate and the second electrically-conductive backing plate is Qsn6.5-0.1 phosphor bronze alloy.
The thickness of first electrically-conductive backing plate and the second electrically-conductive backing plate is 1mm.
The power generation characteristics test device of road PZT (piezoelectric transducer) of the present invention includes pressure axis, the first Marshall standard
Test specimen, the second Marshall standard specimen, MTS pedestal, support post and test multimeter；
The lower end of pressure axis is connected with the upper end of the first Marshall standard specimen, and MTS is fixed in the lower end of support post
On pedestal, the second Marshall standard specimen is fixed on the upper end of support post, and road to be tested is located at the first horse with PZT (piezoelectric transducer)
Between Xie Er standard specimen and the second Marshall standard specimen, the input terminal and road PZT (piezoelectric transducer) to be tested of multimeter are tested
Output end be connected.
Loading plate is provided between the lower end of pressure axis and the upper end of the first Marshall standard specimen；
Lower loading plate is provided between the upper end of support post and the second Marshall standard specimen.
The energy storage experimental rig of road PZT (piezoelectric transducer) of the present invention includes top plate, column, connecting rod, loading wheel, control
Platform, plank, LTC3588-1 module, energy storage device, test multimeter and driving device processed；
The end of top plate is fixed on the upper end of column, and the bottom of top plate is provided with sliding slot, and the upper end of connecting rod is embedded in institute
It states in sliding slot, driving device drive link moves in the sliding slot, and loading wheel is connected to the lower end of connecting rod, and plank is set to control
On platform processed, road to be tested is placed on plank with PZT (piezoelectric transducer), the output end warp of road PZT (piezoelectric transducer) to be tested
LTC3588-1 module is connected with the input terminal of energy storage device, and the output end of energy storage device is connected with test multimeter.
Energy storage device is super capacitor and rechargeable battery.
Plank is fixed by bolts on console.
The invention has the following advantages:
Road PZT (piezoelectric transducer) of the present invention includes several first electrically-conductive backing plates and several second electrically-conductive backing plates,
In, each first electrically-conductive backing plate and each second electrically-conductive backing plate successively cross-distribution from top to bottom, and adjacent first electrically-conductive backing plate and the
Several piezoelectric vibrators are provided between two electrically-conductive backing plates, wherein each piezoelectric vibrator is prepared by PZT and PVDF, thus effectively
Raising road PZT (piezoelectric transducer) bearing capacity, power generation performance and durability.In addition, passing through pressure axis and the first Marshall standard
Test specimen, which satisfies the need, applies pressure with PZT (piezoelectric transducer), the electricity generated by testing multimeter detection road with PZT (piezoelectric transducer), in reality
When operation, the frequency and load of load can be applied, by adjusting pressure axis to test the power generation characteristics of road PZT (piezoelectric transducer).
Meanwhile by loading wheel on road with pressure is applied on PZT (piezoelectric transducer), the electricity that road PZT (piezoelectric transducer) generates passes through LTC3588-1
Module is stored in energy storage device after being rectified, with simulation road PZT (piezoelectric transducer) power generation and energy storage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Road PZT (piezoelectric transducer) 6 of the present invention；
Fig. 2 is the test chart of Road PZT (piezoelectric transducer) 6 of the present invention；
Fig. 3 is the distribution map of piezoelectric vibrator 2 in the present invention；
Fig. 4 is the structural schematic diagram of power generation characteristics test device in the present invention；
Fig. 5 is the structural schematic diagram of energy storage experimental rig in the present invention；
Fig. 6 is the circuit diagram of energy storage experimental rig in the present invention；
Fig. 7 is LTC3588-1 output voltage curve in the present invention；
Fig. 8 is the charging effect figure of super capacitor and rechargeable battery in the present invention.
Wherein, 101 it is the first electrically-conductive backing plate, 102 be the second electrically-conductive backing plate, 2 be piezoelectric vibrator, 31 is positive wire, 32
Be detection multimeter for cathode conductor, 4,5 be pressure axis, 6 be road PZT (piezoelectric transducer), 71 be the first Marshall standard specimen,
72 be the second Marshall standard specimen, 8 be upper loading plate, 9 be lower loading plate, 10 be support post, 11 be MTS pedestal, 12 be
Energy storage device, 13 be test multimeter, 14 be top plate, 15 be column, 16 be bolt, 17 be sliding slot, 18 be connecting rod, 19 be load
Wheel, 20 be test multimeter, 21 be plank, 22 be console, 23 be LTC3588-1 module.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, Fig. 2 and Fig. 3, road PZT (piezoelectric transducer) of the present invention include positive wire 31, cathode conductor 32,
Several first electrically-conductive backing plates 101 and several second electrically-conductive backing plates 102, wherein each first electrically-conductive backing plate 101 and each second conductive base
The successively cross-distribution from top to bottom of plate 102, and if being provided between adjacent first electrically-conductive backing plate 101 and the second electrically-conductive backing plate 102
Dry-pressing electric tachometer indicator 2, wherein each piezoelectric vibrator 2 anode be in contact with the first electrically-conductive backing plate 101, the cathode of each piezoelectric vibrator 2 and
Second electrically-conductive backing plate 102 is in contact, and positive wire 31 is connected with each first electrically-conductive backing plate 101, cathode conductor 32 and each second
Electrically-conductive backing plate 102 is connected；Piezoelectric vibrator 2 is prepared by PZT and PVDF.
The mass ratio of PZT and PVDF is 7:3；The material of first electrically-conductive backing plate 101 and the second electrically-conductive backing plate 102 is
Qsn6.5-0.1 phosphor bronze alloy；The thickness of first electrically-conductive backing plate 101 and the second electrically-conductive backing plate 102 is 1mm.
The preparation method of road of the present invention PZT (piezoelectric transducer) 6 the following steps are included:
1) preparation of piezoelectric vibrator 2
The PVDF of the PZT of the 7g of measurement and 3g is put into ball grinder after mixing, adds suitable dehydrated alcohol,
It is then placed into ball milling half an hour in ball mill, then pours out slurry；Slurry is put into 80 DEG C of baking ovens dry 2h, pours into after to be dried
It is ground in alms bowl to agate, taking-up 0.6g progress is hot-forming after grinding half an hour；It is kept the temperature after hot pressing die is preheated to 180 DEG C, then
The mixture of above-mentioned 0.6g is put into hot pressing die, then 30MPa pressure is applied by tablet press machine, system is taken out in demoulding after half an hour
The piezoelectric vibrator 2 performed；Above step is repeated, multiple piezoelectric vibrators 2 are prepared, then all piezoelectric vibrators 2 are carried out by galactic pole
Change, while positive and negative anodes label is carried out to each piezoelectric vibrator 2；
2) production of the first electrically-conductive backing plate 101 and the second electrically-conductive backing plate 102.
Phosphor bronze alloy is machined to by cutting with a thickness of 1mm, a length of 100mm, the size that width is 60mm, then to it
Surface is polished, and guarantees the planarization of substrate；
3) use dehydrated alcohol by the processing on 102 surface of piezoelectric vibrator 2, the first electrically-conductive backing plate 101 and the second electrically-conductive backing plate
Clast is cleaned up with grease stain, and drying is stand-by；
4) by two-component DB2011 cupric powder conductive adhesive be uniformly applied to the first electrically-conductive backing plate 101, the second electrically-conductive backing plate 102 and
The bonding plane of piezoelectric vibrator 2 guarantees each 2 marshalling of lamination electric tachometer indicator, and arrangement mode is detailed in attached drawing 3, meanwhile, each first is led
Electric substrate 101 and the alignment of each second electrically-conductive backing plate 102, are then forced together the two with certain pressure or weight, and be put into 120
DEG C baking oven in keep the temperature 2 hours, allow conducting resinl sufficiently to solidify.It is encapsulated outside with adhesive tape simultaneously, increases its anti-shear ability；
5) positive wire 31 and cathode conductor 32 are bonded
First, the second composition of two-component DB2011 cupric powder conductive adhesive is uniformly mixed by 1: 1 (wt), then by the glue after mixing
It is coated onto the first electrically-conductive backing plate 101 and the corresponding position of the second electrically-conductive backing plate 102, then by positive wire 31 and the first electrically-conductive backing plate
101 is bonding, and cathode conductor 32 is mutually Nian Jie with the second electrically-conductive backing plate 102, and specific bonding mode is detailed in attached drawing 1, connects equivalent
Circuit is shown in attached drawing 2, is finally putting into 120 DEG C of baking oven and keeps the temperature 2 hours, it is fully cured.
6) it detects
Positive wire 31 and cathode conductor 32 are connected with the positive and negative anodes of detection multimeter 4, after detection multimeter 4 detects
If can be connected and leakage current phenomenon, prove that the road PZT (piezoelectric transducer) 6 makes qualification.
With reference to Fig. 4, the power generation characteristics test device of road PZT (piezoelectric transducer) of the present invention includes pressure axis 5, first
Marshall standard specimen 71, the second Marshall standard specimen 72, MTS pedestal 11, support post 10 and test multimeter 13；Pressure
The lower end of axis 5 is connected with the upper end of the first Marshall standard specimen 71, and MTS pedestal 11 is fixed in the lower end of support post 10
On, the second Marshall standard specimen 72 is fixed on the upper end of support post 10, and road to be tested is located at the first horse with PZT (piezoelectric transducer) 6
Between Xie Er standard specimen 71 and the second Marshall standard specimen 72, the input terminal and road piezoelectricity to be tested of multimeter 13 are tested
The output end of energy converter 6 is connected.
Loading plate 8 is provided between the lower end of pressure axis 5 and the upper end of the first Marshall standard specimen 71；Support post
Lower loading plate 9 is provided between 10 upper end and the second Marshall standard specimen 72.
The specific operation process of the power generation characteristics test device of road of the present invention PZT (piezoelectric transducer) 6 are as follows:
Starting MTS, which satisfies the need, applies different impact forces (500N, 1000N, 1500N), record test general-purpose with PZT (piezoelectric transducer) 6
The transient current and open-circuit voltage that table 13 measures, test result join game clock 1.
Table 1
The minimum peak voltage of road of the present invention PZT (piezoelectric transducer) 6 shows in 3V or more by vehicle as can be seen from Table 1
When load action, the road PZT (piezoelectric transducer) 6 can produce biggish electric energy；
Starting MTS, which satisfies the need, applies different impact forces (500N, 1000N, 1500N) and different frequency with PZT (piezoelectric transducer) 6
(0.5Hz, 1Hz, 2Hz), test multimeter 13 test the transient current and open-circuit voltage of road PZT (piezoelectric transducer) 6, test result
It is as shown in table 2:
Table 2
From table 2 it can be seen that the electric current that the road is generated with PZT (piezoelectric transducer) 6 is with load with the continuous increase of frequency
The increasing of frequency and increase, increase with the increasing of added load；Voltage increases with the increasing of load, with adding for loading frequency
Be held essentially constant greatly, reason is: the reason of why piezoelectric vibrator 2 can generate electricity is direct piezoelectric effect, works as generation
When direct piezoelectric effect, how much directly proportional to the stress being applied thereto charge caused by piezoelectric vibrator 2 is, therefore, when being loaded
When lotus increases, the voltage and current signal that piezoelectric vibrator 2 generates increases；Crest voltage is unrelated with the frequency of single-impact load, because
, when loading frequency increases, voltage change is little for this, because added load is fluctuated in simulation process, voltage signal
Also some microwaves are dynamic at different frequencies.
The alternating current and voltage that road is generated with PZT (piezoelectric transducer) 6 are intermittent, therefore road is generated with PZT (piezoelectric transducer) 6
Electric energy be difficult to be directly load supplying, thus greatly reduce the practicality.Piezoelectric energy needs before being supported use
First convert and be stored in medium and accumulated, then carry out again using.
With reference to Fig. 5 and Fig. 6, the energy storage experimental rig of road PZT (piezoelectric transducer) 6 of the present invention includes top plate 14, column
15, connecting rod 18, loading wheel 19, console 22, plank 21, LTC3588-1 module 23, energy storage device 12, test multimeter 20 and
Driving device；The end of top plate 14 is fixed on the upper end of column 15, and the bottom of top plate 14 is provided with sliding slot 17, connecting rod 18 it is upper
End is embedded in the sliding slot 17, and driving device drive link 18 moves in the sliding slot 17, and loading wheel 19 is connected to connecting rod
18 lower end, plank 21 are set on console 22, and road PZT (piezoelectric transducer) 6 to be tested is placed on plank 21, road to be tested
It is connected through LTC3588-1 module 23 with the input terminal of energy storage device 12 with the output end of PZT (piezoelectric transducer) 6, energy storage device 12
Output end is connected with test multimeter 20.
Energy storage device 12 is super capacitor and rechargeable battery；Plank 21 is fixed on console 22 by bolt 16.
Embodiment one
The number of first electrically-conductive backing plate 101 is two pieces, and the number of the second electrically-conductive backing plate 102 is three pieces, every lamination electric tachometer indicator 2
Number be 5, the diameter of single piezoelectric vibrator 2 is 13mm, with a thickness of 1mm, the first electrically-conductive backing plate 101 and the second electrically-conductive backing plate
102 size is long 10cm × wide 6cm × thickness 0.1cm, since every lamination electric tachometer indicator 2 shares electrically-conductive backing plate, therefore in use of satisfying the need
PZT (piezoelectric transducer) 6 can be equivalent to evenly load when being further applied load, according to road 6 forced area conversion relation of PZT (piezoelectric transducer), when
When single piezoelectric vibrator 2 in each layer of energy converter meets with stresses as 0.7MPa, corresponding external world's load, which satisfies the need, uses piezoelectric energy-conversion
The power of the application of device 6 500N.
When specific operation, road PZT (piezoelectric transducer) 6 is installed on to the energy storage of road PZT (piezoelectric transducer) 6 of the present invention
In experimental rig, the positive wire 31 and cathode conductor 32 of road PZT (piezoelectric transducer) 6 are connected with the voltage end of test multimeter 20,
Start energy storage experimental rig, is satisfied the need by loading wheel 19 with PZT (piezoelectric transducer) 6 is further applied load as 500N, to roll frequency be 44 ± 1
The active force of secondary/min, the voltage observed are instantaneous irregular alternating voltage, then illustrate that road PZT (piezoelectric transducer) 6 is in normal
Working condition.
Test multimeter 20 is removed, positive wire 31 and cathode conductor 32 are accessed to the input terminal of LTC3588-1 module 23,
LTC3588-1 module 23 can rectify the output termination test multimeter 20 of LTC3588-1 module 23 alternating voltage,
Test multimeter 20 voltage change curve as shown in fig. 7, as seen from Figure 7 voltage reach stablize output need about 10 points
Clock.
Further, the input terminal of the output termination energy storage device 12 of LTC3588-1 module 23, then by the defeated of energy storage device 12
Termination test multimeter 20 out, starts driving device, in work 1h, the voltage detecting knot at super capacitor and rechargeable battery both ends
Fruit is as shown in figure 8, as seen from Figure 8, the energy storage effect of super capacitor is better than rechargeable battery.
Claims (5)
1. a kind of power generation characteristics test device of road PZT (piezoelectric transducer), which is characterized in that have a rest including pressure axis (5), the first horse
That standard specimen (71), the second Marshall standard specimen (72), MTS pedestal (11), support post (10) and test multimeter
(13)；
The lower end of pressure axis (5) is connected with the upper end of the first Marshall standard specimen (71), and the lower end of support post (10) is solid
Due on MTS pedestal (11), the second Marshall standard specimen (72) is fixed on the upper end of support post (10), road pressure to be tested
Electric transducer (6) tests multimeter between the first Marshall standard specimen (71) and the second Marshall standard specimen (72)
(13) input terminal is connected with road to be tested with the output end of PZT (piezoelectric transducer) (6)；
The road PZT (piezoelectric transducer) (6) to be tested includes positive wire (31), cathode conductor (32), several first electrically-conductive backing plates
(101) and several second electrically-conductive backing plates (102), wherein each first electrically-conductive backing plate (101) and each second electrically-conductive backing plate (102) from
Top to bottm successively cross-distribution, and adjacent first electrically-conductive backing plate (101) and the second electrically-conductive backing plate (102) if between be provided with dry-pressing
Electric tachometer indicator (2), wherein the anode of each piezoelectric vibrator (2) is in contact with the first electrically-conductive backing plate (101), and each piezoelectric vibrator (2) is born
Pole is in contact with the second electrically-conductive backing plate (102), and positive wire (31) is connected with each first electrically-conductive backing plate (101), cathode conductor
(32) it is connected with each second electrically-conductive backing plate (102)；
Piezoelectric vibrator (2) is prepared by PZT and PVDF.
2. the power generation characteristics test device of road PZT (piezoelectric transducer) according to claim 1, which is characterized in that PZT with
The mass ratio of PVDF is 7:3.
3. the power generation characteristics test device of road PZT (piezoelectric transducer) according to claim 1, which is characterized in that first is conductive
The material of substrate (101) and the second electrically-conductive backing plate (102) is Qsn6.5-0.1 phosphor bronze alloy.
4. the power generation characteristics test device of road PZT (piezoelectric transducer) according to claim 1, which is characterized in that first is conductive
The thickness of substrate (101) and the second electrically-conductive backing plate (102) is 1mm.
5. the power generation characteristics test device of road PZT (piezoelectric transducer) according to claim 1, which is characterized in that pressure axis
(5) loading plate (8) are provided between the upper end of lower end and the first Marshall standard specimen (71)；
Lower loading plate (9) are provided between the upper end of support post (10) and the second Marshall standard specimen (72).
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| CN202562820U (en) * | 2012-05-03 | 2012-11-28 | 长安大学 | Tension-compression fatigue test device simulating bituminous pavement temperature stress |
| CN103956934A (en) * | 2014-04-01 | 2014-07-30 | 同济大学 | Superimposed column type bituminous pavement energy harvesting device |
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|---|---|---|---|---|
| CN202562820U (en) * | 2012-05-03 | 2012-11-28 | 长安大学 | Tension-compression fatigue test device simulating bituminous pavement temperature stress |
| CN103956934A (en) * | 2014-04-01 | 2014-07-30 | 同济大学 | Superimposed column type bituminous pavement energy harvesting device |
| CN106950106A (en) * | 2017-03-21 | 2017-07-14 | 山西省交通科学研究院 | A kind of Marshall stability analyzer of seaming chuck automatic lifting |
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