ground penetrating radar (gpr)

GROUND PENETRATING RADAR (GPR)

• GPR is an electromagnetic method that detects interfaces between subsurface materials with differing dielectric constants

• The transmitter radiates repetitive short-duration electromagnetic signals into the earth as the antenna moves across the surface.

• Electromagnetic waves are reflected back to the receiver by interfaces between materials with differing electrical properties

GROUND PENETRATING RADAR (GPR)

• GPR is an electromagnetic method that detects interfaces between subsurface materials with differing dielectric constants

• The transmitter radiates repetitive short-duration electromagnetic signals into the earth as the antenna moves across the surface.

• Electromagnetic waves are reflected back to the receiver by interfaces between materials with differing electrical properties

GROUND PENETRATING RADAR (GPR)

trace

GROUND PENETRATING RADAR (GPR)

Subsurface features, which may cause such reflections, are for instance: Man-made objects including all types of utilities

of various material types such as plastic, ductile iron, concrete, underground storage tanks, building foundations, trench boundaries, buried waste and more.

Natural geologic conditions such as changes in soil composition, supporting layers, ice, groundwater level, bedrock, boulders, cobbles, voids etc.

GROUND PENETRATING RADAR (GPR)

Approximate depth range for different antenna frequencies

GROUND PENETRATING RADAR (GPR)Comparison of 3 different antenna frequencies

GROUND PENETRATING RADAR (GPR)

Types of Antennas

GROUND PENETRATING RADAR (GPR)Unshielded antennas & suitable areas of use

GROUND PENETRATING RADAR (GPR)Unshielded antennas

The unshielded antennas consist of separate transmitter and receiver electronics to which the antenna elements are attached

GROUND PENETRATING RADAR (GPR)Unshielded antennas

Electronic unit 200 MHz

100 MHz

50 MHz

25 MHz

200 MHz

GROUND PENETRATING RADAR (GPR)Unshielded antennas

GROUND PENETRATING RADAR (GPR)Unshielded antennas - Rough Terrain Antenna

(RTA)

GROUND PENETRATING RADAR (GPR)Unshielded antennas - Rough Terrain Antenna

(RTA)

GROUND PENETRATING RADAR (GPR)Shielded antennas & suitable areas of use

GROUND PENETRATING RADAR (GPR)Shielded antennas

100 MHz 250 MHz

500 MHz 800 MHz

Electronic unit

Electronic unit with battery mountedCable hose

GROUND PENETRATING RADAR (GPR)Rough Terrain Cart (RTC)

GROUND PENETRATING RADAR (GPR)

Monitor

GROUND PENETRATING RADAR (GPR)

Radargram screen Main menus

Battery indicator status

Information line

Control unit indicator

GROUND PENETRATING RADAR (GPR)Measurement settings

GROUND PENETRATING RADAR (GPR)Measurement settings

GROUND PENETRATING RADAR (GPR)Measurement settings

Zero level is expressed in nanoseconds as the location of the ground surface; from where the depth scale begins.

GROUND PENETRATING RADAR (GPR)ProEx Control Unit

GROUND PENETRATING RADAR (GPR)

ProEx Control Unit mounted on RTC

GROUND PENETRATING RADAR (GPR)

ProEx Control Unit and the safety hook

GROUND PENETRATING RADAR (GPR)

Wheels for measuring distance

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)

GROUND PENETRATING RADAR (GPR)