Virbrating Wire Surface Strain Gages

VWS-5F vibrating wire surface strain gauge (intelligent)

1.Purpose

     Vibrating wire surface strain gauge is suitable for long-term arrangement on the surface of hydraulic structures or other structures to measure the strain of structures and simultaneously measure the temperature of arrangement points.

     Vibrating wire surface strain gauge is of stainless steel structure, integrated design, anti rotation, anti bending, anti impact, anti drop, grounding and lightning protection, small elastic modulus, good follow-up with the measured structure, no interference with the original stress field, simple and reliable installation, and long-term working underwater.

 ☆ All stainless steel structure, integrated design, anti rotation, anti bending, anti impact, grounding and lightning protection, long-term working underwater.

 ☆ Surface strain gauge measurement system intelligent identification parameters, intelligent fault diagnosis, cloud platform mobile phone seamless docking.

2.Specifications and main technical parameters

Note: Frequency modulus F=Hz²×10^-3 

3.Structure

   Vibrating wire surface strain gauge consists of strain gauge, clamp and observation cable.

4.Working principle

   When the measured structural stress changes, the surface strain gauge senses the deformation synchronously, and the deformation is transferred to the vibrating string through the fixture, which is transformed into the change of vibrating string stress, thus changing the vibration frequency of vibrating string. The electromagnetic coil excites the vibrating string and measures its vibration frequency. The frequency signal is transmitted to the acquisition device through the cable, and then the strain of the measured structure can be measured, and the temperature value of the buried point can be measured simultaneously.