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Vibrating Wire Temperature Sensor

A vibrating wire temperature sensor is used to establish a temperature relationship between structural changes in concrete, rock, and soil and measure the result. They are ideal for monitoring temperature during concrete curing, for evaluating seasonal variations within ground and structures, and for interpreting temperature-related stress and volume changes in dams.

The vibrating wire comprises a stainless steel body that 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.

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

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Operation

Vibrating Wire Sensor: 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.

Applications 

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.

If you have any questions or would like more information on our Vibrating Wire Temperature Sensor products, please contact us.