Thermocouple Temperature Sensor Overview

The Thermocouple Temperature Sensor is used for measuring temperature in concrete, soil and rock.

Temperature sensors are used to monitor temperature in concrete, rock and soil.

They are ideal for monitoring temperature during concrete curing, for evaluating seasonal variations within ground and structures and to interpret temperature-related stress and volume changes in dams.

Thermocouple – comprises of two dissimilar conductors joined at one end to form a hot junction which produces a voltage. As the junction is heated or cooled the voltage changes and is converted to return the temperature.

Product Features
  • Accurate and robust with good long-term stability
  • Suitable for manual or remote reading and datalogging
  • Strong, screened and flexible cable

Product Benefits
  • Choice of temperature sensors to suit project and site requirements
  • Low cost option
  • Cable lengths can be up to 100m or 1000m, dependent on choice of sensor

Operation
The sensor is sealed against corrosion and placed in the medium. The thermocouple voltage is generated from two dissimilar conductors being joined to form a hot junction. This hot junction creates a voltage and, as the junction is heated or cooled, the voltage will change.

​The result will be proportional to the temperature at the installed location – a readout or data acquisition system can be used to read the voltage and convert it to temperature.

Application
Temperature sensors are used for measuring temperature in concrete, soil and rock including:
  • Monitoring temperature during concrete curing
  • Soil and rock temperatures adjacent to ground freezing operations and liquid gas storage tanks
  • Measurements of water temperatures in reservoirs and boreholes
  • Monitoring seasonal variations within the ground and structures
  • Interpretation of temperature-related stress and volume changes in mass concrete structures including dams
  • Air temperature measurements on structure surfaces
  • Determination of critical moment for injecting joints within mass concrete structures
  • Interpretation of temperature effects on other installed instruments.