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Home » Products » Pavement Testing » Radar system » Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting
Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting
Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting

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Survey Ground Penetrating Radar (GPR) dual frequency for pipe detecting

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TBTGPR series ground penetrating radar is a versatile GPR system offering various detecting combination for application in highway, roads, tunnel construction, paving, buildings, bridges, water conservancy, municipalities or military.
  • TBTGPR -20

  • TBTSCIETECH

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TBTGPR series ground penetrating radar is a versatile GPR system offering various detecting combination for application in highway, roads, tunnel construction, paving, buildings, bridges, water conservancy, municipalities or military.

TBTGPR-20 is a portable with cart which specially mainly for tube detecting, which equip with 200MHZ and 600MHZ antenna, to make the detecting more accurate.



GPR Controller

dual channel controller

Compatible Antenna

TBTGPR series antennas

working Channel

2 channels

Power consume

40W

ADC bits

16 bit

The max scanning speed

512 scanning/s  (sampling points number is 512)

Sampling points number

256, 512, 1024, 2048, 4096, 8192

Max transmitting frequency

800kHz

Collecting modes

Time mode, distance mode and point measurement mode

Time-window range

1~8000ns

Gain range

-10dB~160dB

Real time processing functions

Correction zero deviation, FIR filtering, IIR filtering, background removal, average among ways, data overlying

TBT Antenna specification:

Antenna types

Center frequency

Pulse width

Depth range

Reference depth

Antenna Applications

Ground coupling antenna

200MHz

5ns

1~6m

4m


600MHz

1.6ns

0~3m

1.5m

Roadbed disease detection, Invert quality inspection, utility detection, Water conservancy and hydropower engineering, Geological survey

Important note:

The penetrating depth of the antenna is tightly related to the conductivity of the medium, the higher the conductivity, the shallower the penetration depth of antenna.

The penetration depth will drop sharply in wet clay.

The above penetrating depth is under absolute condition of theorotical value.


Ø Working Principle

TBTGPR Series radar uses high-frequency electromagnetic (EM) waves (from low to high frequency) to acquire subsurface information. TBTGPR detects changes in EM properties (dielectric permittivity, conductivity, and magnetic permeability), that in a geologic setting, are a function of soil and rock material, water content, and bulk density. Data are normally acquired using antennas placed on the ground surface or in borehole or in air. The transmitting antenna radiates EM waves that propagate in the subsurface and reflect from boundaries at which there are EM property contrasts. The receiving GPR antenna records the reflected waves over a selectable time range. The depths to the reflecting interfaces are calculated from the arrival times in the GPR data if the EM propagation velocity in the subsurface can be estimated or measured.


Ø Standard Configure

A.   Main Unit

B.   Controller

C.   Antenna*2pcs

D.   Cart  

E.   Cable

F. Software(data acquisition and analysis)

G. Instruction manual


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