Rapid Non-Contact Tension Force Measurements on Stay

Polytec and Metro Testing Laboratories Ltd, BC, Canada have joined forces to facilitate the work of non contact tension force measurements. Metro Testing has years of experience performing structural data analysis calculating the tension force from vibration data. When combined with Polytec‘s ability to provide long range non-contact vibration measurements, based on a state-of-the-art laser interferometer, fast and accurate results are possible. This allows up to 10 cables measurements per hour. This productivity can’t be achieved with traditional sensing methods and therefore should be the preferred method for bridge owners and bridge engineering firms. The Polytec/Metro Testing team was the driving force behind the cost-effective measurements of resonance frequencies and the tension force calculations of the Deh Cho Bridge. More Info