operational principle

The density of asphalt pavement is directly proportional to the dielectric constant of the tested material. In the case of a magnetic field generated by the induction board, the asphalt coreless density meter uses an innovative spiral detection magnetic field to test the dielectric constant.

The electronic components of the asphalt coreless density meter convert electromagnetic signals into material density readings and display them on the screen. After the instrument calibration is completed, the density can be read in one go

Technical Characteristics

Quickly and accurately measure the density of hot mix asphalt concrete pavement;

The use of high-frequency electromagnetic waves is safe, reliable, and radiation free;

Fast real-time data measurement with built-in storage unit;

Real time display of density value and compaction degree through instrument measurement;

Can synchronously display GPS positioning information (latitude and longitude) of instrument measurement points;

Cooperate with LRK data export software:

As shown in the following figure：

Project	Parameter
Detection area	Diameter 27cm
Detection range	Allows measurement offine and coarse materials
Operating temperature	Ambient temperature minus 7℃ to 43℃
Surface temperature	175℃
Storage temperature	-18℃ to 66℃
Detection depth	25mm to 300mm
Measurement Items	Densityvalues,percentage compaction, voidage, and segregationvariables
Display	5 inch HD display
Display interface	Display in Chinese and English
Data storage	Up to 14000 test data
Sensor temperature range	0 to 180°C
Endurance	More than 25h

Industry experienced quality credible