Vibrating wire temperature sensors are used to establish a temperature relationship between structural changes and measurement result.
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.
Comprises a Stainless Steel body which houses a Vibrating Wire sensor unit/transducer. As the body expands or contracts due to temperature, this changes the tension in the Vibrating Wire. The resulting frequency is converted to output temperature.
- Accurate and robust with good long-term stability
- Suitable for manual or remote reading and datalogging
- Strong, screened and flexible cable
- 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
Vibrating Wire Temperature Sensor Operation
The sensor is inserted into the medium to be monitored. As the sensor expands or contracts due to temperature, the tension in the VW wire changes. The resulting frequency change is converted by a readout or data acquisition system into temperature.
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.