Asphalt Non-nuclear Density Gauge

An electrical density gauge, like TransTech’s Pavement Quality Indicator (PQI™), measures pavement density indirectly by measuring its dielectric constant. The PQI™ passes a small current through the pavement, which creates an electrical sensing field. Density is measured by the response of this electrical sensing field to changes in the pavement’s complex impedance (consisting of the pavement’s composite resistivity and dielectric constant). This response is then calibrated to pavement density (TransTech, 1997[1]).

Using the most advanced non-nuclear density gauge asphalt radar emission principle , is a non-radioactive substances, environmental non-contact instrument .
 
Non-nuclear density gauge asphalt characteristics:
Fast measurement speed --- display the measurement results within 1.5 seconds
Internal instrument automatically corrected for temperature compensation
Offers four measurement modes : single-point mode, continuous mode, the average model , segregation patterns
You can store 200 sets of measurement data
Automatic calculation of the average density , degree of compaction and porosity
Is measured in International Units
A typical battery life of 16 hours
 
Non-nuclear density gauge asphalt technical indicators :
Physical characteristics :
Volume dimensions (W x D x H): 315x 315x 272mm
Weight ( with battery ): 4.6 kg
Operating temperature : -20 to70 ° C, the maximum surface temperature of 150 ° C
Display Type: 480 * 272 16k color dot matrix true color
Data storage : Up to 200 test data
Units of measurement : Metric (kg/m3)
Sensor Temperature Range : -20 to170 ° C
 
Electrical characteristics :
12V 12000mAh Sanyo lithium iron phosphate battery
Battery can be used continuously for 16 hours
Battery charger : 110V-240v
 
Measurement characteristics :
Measuring depth : 19 to 110mm
Measuring time: 1.5 seconds
Instrument Resolution : 0.001kg/m3
Accuracy : ± 0.15 kg/m3