VIBRATING STRING SENSOR CALIBRATION ASSEMBLY, SUCH AS AN EXTENSOMETER, CALIBRATION DEVICE, VIBRATING CORD SENSOR, SUCH AS AN EXTENSOMETER, AND CALIBRATION METHOD

摘要

A vibrating wire sensor calibration assembly (1) for determining the extensometer coefficient (Kc) of a vibrating wire (140) of said vibrating wire sensor (100). The calibration assembly (1) includes the vibrating wire sensor (100) comprising a sensor body (110) defining a longitudinal housing for the vibrating wire (140), the vibrating wire (140) having a first end secured to a first end of the sensor body (110) and a holding member (120) of the vibrating string (140) for holding a second end of the vibrating string (140) under tension. The holding member (120) having at least a first configuration attached to the sensor body and a second disengaged configuration of the sensor body (110). The calibration assembly (1) further comprises a calibrating device (200) for the vibrating wire sensor (100) having a vibrating wire tensile stressing system and a frequency measuring system (241). of resonance of the vibrating wire sensor.