Soil uniaxial compressive deformation rebound modulus (Poisson's ratio) tester
Performance characteristics and functions
1. Uniaxial Soil Compression Testing Equipment ( soil Poisson's ratio tester) mainly consists of a host compression, bending mechanism unit, automatic control system unit, computer and dedicated software data acquisition system unit, etc.
2. Adopting servo/variable frequency motor drive, the motor drives the cantilever to move up and down through the transmission mechanism to achieve the experimental loading process. Soil uniaxial compressive Poisson's ratio tester uses The fully digital closed-loop control system is used for control and measurement, and the computer is used for dynamic display of the test process and test curve, as well as data processing. After the test is completed, data analysis and editing can be carried out, and the product performance is stable.
Test function
(1) Collect displacement and deformation with constant loading force.
(2) Constant displacement collection of force values and deformations, measurable peak tracking, and measurable residual force values
(3) Beam specimen: 50 × 50 × 200mm; 100×100×400mm; 150 × 150 × 550mm (for bending test)
(4) Cylindrical specimen: φ 150 × 150mm; φ 100 × 100mm (used for compressive strength deformation splitting test)
(5) Cylindrical specimen: φ 150 × 300mm (used for axial compression and elastic modulus tests)
(6) Cylindrical specimen: φ 150 × 300mm (for Poisson's ratio test)
(7) According to the above test specimens, select testing and measuring devices: bending, compression deformation splitting, axial compression and elastic modulus, Poisson's ratio testing and measuring devices.
Parameter
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Type |
Name |
Parameter |
|
1 |
|
Maximum test force |
300KN |
|
accuracy class |
Level 1 |
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|
2 |
Load parameters |
Test force measurement range |
0.4%～ FS（full range） |
|
Test force indication error |
Within ± 0.5% of the displayed value |
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Test force resolution |
± 1/300000 of the maximum test force, no gear division throughout the entire process, and constant resolution throughout the entire process |
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|
3 |
Control parameters |
Range of force control rate adjustment |
0.005～5%FS/s |
|
Force control rate control accuracy |
When the speed is less than 0.05% FS/s, it is within ± 2% of the set value, and when the speed is greater than or equal to 0.05% FS/s, it is within ± 0.5% of the set value； |
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rebound deformation |
Range 0-50mm, accuracy 0.001mm |
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|
control range |
0.5%～ FS |
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control accuracy |
When the set value is ≥ 10% FS, it is within ± 0.5% of the set value. When the set value is ＜ 10% FS, it is within ± 1% of the set value |
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4 |
Host parameter |
Measurement of deformation (Poisson's ratio) |
0～8mm accuracy0.001 |
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Oil cylinder piston large stroke |
150mm |
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Upper and lower pressure plates large distance |
450mm |
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Power |
380V/50Hz，±10% |
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Host weight |
300Kg |
Soil deformation rebound modulus tester Note:
Select according to the experimental requirements
1. Deformation sensor (hydraulic): 0-12.7mm (accuracy 0.005mm)
2. Deformation sensor (national standard): 0-12.7mm (accuracy 0.01mm)
Optional function: One computer can be selected to collect 32 soil samples simultaneously; Low voltage, medium voltage, and high voltage integrated control and acquisition systems can also be selected.
The upper computer software complies with national standards and automatically collects, records, stores, calculates, processes, draws graphics, and exports reports.
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