Digital Thermal Array
The Digital ThermArray System provides precision thermal gradient information for geotechnical, geothermal, and marine applications. The main component of the system consists of digital thermal data acquisition nodes distributed along a single cable, typically spaced at uniform intervals. This digital technology allows for many nodes to be placed on one string without greatly increasing the overall cost. Data setup and collection is performed by a stationary data logger system.
Subgrade Temperature Probe
The RST Instruments Subgrade Temperature Probe is a 9′ array of thermistors which is designed to be installed in pavement subgrade to measure thermal profile over the long-term. Two types are available: analog and digital.
Thermistor Strings are curve matched to desired temperature tolerance over selected temperature ranges. This permits the use of multiple sensors with a single readout or data logger, eliminating costly calibration procedures.