The DUALEM-1H has dual-geometry receivers at separations of 1- and ½-m from the transmitter, which provide simultaneous 0.3-, 0.5-, 0.8- and 1.6-m depths of conductivity sounding (by the 70-% cumulative-sensitivity guideline), four simultaneous in-phase (susceptibility) measurements, and metal detection.
The multiple sounding-depths of the DUALEM-1H enable the analysis of layering in the top 2-m of the earth.
The depth range and spatial resolution of the DUALEM-1H are ideal for many agricultural and archaeological applications. The compact size of the DUALEM-1H makes it convenient for towing on a sled or carrying from station-to-station for on-ground measurements. The DUALEM-1HS sensor is available separately at lower price for integration with the user’s own surveying systems.
| Feature | Description |
|---|---|
| EM Arrays | 0.5- and 1-m horizontal co-planar (HCP) and perpendicular (PRP) transmitter-receiver arrays, operating at 9 kHz |
| Measured EM Quantities | HCP apparent conductivity and in-phase PRP apparent conductivity and in-phase |
| Measuring Ranges | Conductivity: -1000 to +1000 mS/m, 0.1 mS/m resolution In-phase: -300 to +300 ppt, 0.01 ppt resolution |
| Data Rates | 1 Hz standard, optional rates include 0.1-, 5- and 10-Hz |
| Integrated Components | Digital signal processor, GPS receiver, indicator LEDs, RS-232 port, thermometers, Wi-Fi transceiver |
| Power | 8- to 16-V DC from harness module or external battery, draw about 3 W |
| Operating Dimensions | 0.089-m diameter, 1.59-m length (3.5” by 62”) |
| Operating Weights | 5 kg operating for DUALEM-1HS, 7 kg for DUALEM-1H |
| Shipping Dimensions | 1.7m x 0.2m x 0.2m |
| Shipping Weights | 9 kg for DUALEM-1HS, 12 kg for DUALEM-1H |
| Ancillary Items | Data/power cable, software and documentation, shipping tube. DUALEM-1H has a Bluetooth transceiver, controller and harness in a shipping box |
