Complaint
Product description :
ZD18 Comprehensive Wave Speed Tester is a set of four-channel high-resolution, digital wave speed tester. It has functions such as time-sampling, superposition, filtering, signal enhancement, noise suppression, real-time calculation on site, display of measured waveform and test results.
ZD18 Comprehensive Wave Speed Tester is mainly composed of wave speed tester, wave speed detector (abbreviation: probe), three-component detector, trigger detector, ground pulsation sensor and special cable, etc .; the wave speed detector is mainly sealed by a cylindrical metal waterproof It consists of electromagnetic excitation source, two independent fully sealed detectors, damping and high-strength soft rubber tube.
High Resolution Digital Wave Velocity Tester Hammering Shear Wave Speed Testing Machine
Application:
u Field investigation shear wave velocity test
u Field investigation micro-tremor excellence cycle test
u Shear wave and compression wave test for engineering survey;
Applicable standards
Code for Seismic Design of Buildings GB 50011-2010
Code for Investigation of Geotechnical Engineering GB 50021-2001
Code for Testing of Dynamic Characteristics of Foundation GB/T 50269-2015
High Resolution Digital Wave Velocity Tester Hammering Shear Wave Speed Testing Machine
Features1 :
1.8-inch high-definition and high-brightness color touch screen, with special touch pen;
2. The acquisition operating system is WinCE 6.0, and the analysis software supports winXP, win7, and win10 systems.
3. Data and graphics are saved in * .bmp, * .Excel, * .word formats, and word report formats can be issued;
4. Convenient operation, stable performance, industrial-grade motherboard, high signal-to-noise ratio, strong anti-interference ability, adapt to harsh environment;
5.Imported chassis, the whole machine is sealed, beautiful and firm, the structure is reasonable, and it has good anti-vibration, moisture-proof, waterproof, dust-proof performance;
6.The instrument uses a built-in rechargeable lithium battery, which can continuously complete work for no less than 16 hours, and is equipped with a dedicated charger;
High Resolution Digital Wave Velocity Tester Hammering Shear Wave Speed Testing Machine
Features2:
1. It is suitable for the excitation method in the hole, that is, the excitation in the hole and the reception in the hole, without the need to hit the vibration source on the ground to achieve the accuracy of the wave velocity test in the hole
2. It is suitable for the method of gusseting, that is, hitting the ground vibration plate with a heavy hammer, so that the vibration wave propagates down the ground and realizes the wave speed test;
High Resolution Digital Wave Velocity Tester Hammering Shear Wave Speed Testing Machine
Working principle:
A method for determining the wave velocity of the formation where the borehole is located by using the arrival time of the S-wave signal from the source received by the geophone placed in the borehole.
In the borehole, the well fluid is used as a coupling agent, and an instantaneous impact force is applied perpendicular to the borehole wall with an electromagnetic shock source. Two types of particle vibration are generated in the borehole formation. One is that the particle vibration direction is perpendicular to the borehole wall , Which propagates along the direction of the borehole, is called S wave (shear wave, shear wave); the other is that the particle vibration direction is the same as the propagation direction and is called P wave (compression wave, longitudinal wave).
The detector receives the S-wave vibration signal and converts it into an electrical signal, and then transmits it to the computer. After the computer processes the signal, the computer uses two cross-correlation analysis methods to automatically calculate the time difference between the S-wave propagation between the two detectors. Find out the S-wave propagation speed between the two channels.
Technical Parameters:
Specification | ZD18 |
Display | 8-inch high-definition high-brightness color screen, color waveform |
operating system | WinCE 6.0 |
Operation method | Touch screen operation |
Number of channels | 1 to 3 channels optional |
sampling interval | 0.001ms~1000ms |
Sampling points | 512~16384 |
Time consistency | ≤1 sampling interval |
Amplitude consistency of each channel | <3% |
Frequency Range | 1~150Hz |
Preamp gain | 20~60dB |
Trigger value | 0-100% |
gain | 10-600 |
Trigger channel | 1, 2, 3, external trigger (4 channels optional) |
A / D conversion accuracy | 16-bit |
input resistance | >100kΩ |
Signal to noise ratio | 96db |
Input range | ≤5V |
Trigger method | Pulse, on-off |
Delay | 0~10000ms |
Storage capacity | 16G |
Communication port | Support U disk |
working temperature | -10ºC~+42ºC;humidity:<90% |
Storage temperature | -20ºC~+60ºC |
power supply | Built-in lithium battery;DC 48V, ≥3A, charging voltage 220V ± 5% |
Size(mm) | 323×275×135(mm) |
Weight(Kg) | 3.8Kg |
Wave velocity detector (Self-excited probe) | |
Geophone | 60Hz |
Sensitivity | 30V/m/s |
Electromagnetic excitation | DC 48V, current ≤3A |
Three component detector | |
Geophone | 28Hz |
Sensitivity | 30V/m/s |
High Resolution Digital Wave Velocity Tester Hammering Shear Wave Speed Testing Machine
Wave speed test method:
classification Compared | Wave speed test method | ||
Specification | ZD11 | ZD16 | ZD18 |
method | Ground knock test | Automatic test wave speed in hole (automatic) | A. Automatic test wave speed in hole (automatic) B. Ground knock test |
Test steps | A. Place the vibration plate B. Hammer the vibration plate C. Acquire waveform data | A. Acquire waveform data directly B. View data | The first two methods are optional |
Test accuracy | The long distance between the seismic source and the detector affects the test accuracy | The distance between the seismic source and the detector is within 1m, and the test accuracy is high | The first two methods are optional |
Test site | land | Rivers, seas, mudflats, land (any venue) | The first two methods are optional |
Standard configuration:
NO | Name | Quantity | Note |
1 | Host | 1 | / |
2 | ZF110 Self-excited probe | 1 | / |
3 | Dedicated cable | 2 | 110m /30m |
4 | Three component detector | 1 | / |
5 | External trigger detector | 1 | / |
6 | charger | 1 | / |
7 | U disk | 1 | / |
8 | stylus | 1 | / |
9 | Instrument box | 2 | / |
10 | Product warranty card | 1 | / |
11 | manual | 1 | / |
12 | Product certification | 1 | / |
13 | Packing List | 1 | / |
