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Ground Penetrating Radar (GPR)

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.

Model:
TBTGPR Series
Brand:
TBTSCIETECH

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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.

GPR Controller	Dual channel controller (max. upto 8 channels)
working Channel	2 channels (equip with laptop)
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

Antenna types	Center frequency	Pulse width	Depth range	Reference depth	Antenna Applications
Shielded ground-coupling antenna	2500MHz	0.4ns	0.1~0.3m	0.2m	Building structure, pavement layers,bridge engineering
	1600MHz	0.6ns	0.2~0.5m	0.4m	Building structure, pavement layers, bridge defect inspection
	900MHz	1.1ns	0.5~1.5m	0.7m	Tunnel lining/laying quality inspection, roadbed disease inspection
	400MHz	2.5ns	1~4m	2.5m	Tunnel lining/laying quality inspection, roadbed disease detection, utility detection, Water conservancy and hydropower engineering detection
	200MHz	5ns	1~6m	4m	Roadbed disease detection, Invert quality inspection, utility detection, Water conservancy and hydropower engineering, Geological survey
	100MHz	10ns	1~30m	15m	Advance forecast for tunnel geology survey, mineral survey, water conservancy and hydropower engineering detection
Non-shield ground-coupling antenna	35MHz	2.9ns	1~40m	30m	Geology survey, mineral survey, water source research, frozen soil research and ice/snow thickness survey
Air-coupling horn antenna	2000MHz	0.5ns	0.1~0.5m	0.3m	Pavement layers thickness detection at highway speed
Air-coupling horn antenna	1500MHz	0.7ns	0.2~0.7m	0.5m	Pavement layers thickness detection and stabilised layer thickness detection at highway speed
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;