DM100 series vibrating wire strain gauge Introduction: DM100 vibrating wire strain gauge is widely used for long-term buried in hydraulic buildings or other concrete structures (such as beams, columns, pile foundations, retaining walls, linings, piers and bedrock, etc.) to measure the linearity of the buried points Deformation (strain) and stress can be used to measure the temperature of the buried point at the same time. The installation of supporting accessories can form a variety of strain gauges such as surface strain gauges, steel plate gauges, and non-stress gauges. Principle and structure DM100 adopts the vibrating wire working principle. When the structure is stressed or linearly stretched and deformed due to temperature changes, the strain gauge rigidly connected to the structure produces synchronous deformation, which is transmitted to the vibrating wire through the front and rear seats to make it produce Stress changes change the natural vibration frequency of the vibrating wire. The excitation and signal pick-up device picks up its vibration frequency signal. This signal is transmitted to the reading device via the cable, and then the linear change of the measured structure can be measured. The ratio of this change to the nominal length of the instrument is the strain. A thermometer attached to the strain gauge can simultaneously measure the temperature of the buried point. Technical parameter: Specification: 10*15*25 Size parameters: Effective gauge length (mm): 100*150*250 Effective diameter (mm): 21 End seat diameter (mm): buried 33, surface mounted 22 Measuring range (με): 0～4000 Minimum reading (με): ≤1 Temperature measurement range, ℃: -25～60 Temperature measurement accuracy, °C: ±0.5 Temperature correction factor (με)/℃): 11.2 Insulation resistance, MΩ: ≥50 Anti-seepage water pressure MPa: ≥0.5
Introduction: DM100 vibrating wire strain gauge is widely used for long-term buried in hydraulic buildings or other concrete structures (such as beams, columns, pile foundations, retaining walls, linings, piers and bedrock, etc.) to measure the linearity of the buried points Deformation (strain) and stress can be used to measure the temperature of the buried point at the same time. The installation of supporting accessories can form a variety of strain gauges such as surface strain gauges, steel plate gauges, and non-stress gauges. Principle and structure DM100 adopts the vibrating wire working principle. When the structure is stressed or linearly stretched and deformed due to temperature changes, the strain gauge rigidly connected to the structure produces synchronous deformation, which is transmitted to the vibrating wire through the front and rear seats to make it produce Stress changes change the natural vibration frequency of the vibrating wire. The excitation and signal pick-up device picks up its vibration frequency signal. This signal is transmitted to the reading device via the cable, and then the linear change of the measured structure can be measured. The ratio of this change to the nominal length of the instrument is the strain. A thermometer attached to the strain gauge can simultaneously measure the temperature of the buried point.
