Application of pull wire displacement sensor in slope cracks

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The function of pull wire displacement sensor in slope crack

The application of pull wire displacement sensor makes the problem simple , Through flexible , The length of the wire that can be pulled out and retracted varies , Converted into measurable 、 A linear proportional electrical signal , Elongation of flexible steel wire fixed on both sides of the crack , It includes both horizontal displacement and vertical displacement , In this way, the displacement measurement of cracks becomes simple and clear .

1、 Displacement data measured by pull wire displacement sensor , In China, the monitoring of cracks before the slope landslide in open pit mine is mainly completed by manual work , By measuring the distance between two fixed points between the cracks in the slope with a ruler , To measure the slope crack displacement , It not only has low precision, but also has one It's dangerous , Especially at night monitoring is very difficult ; Previous complex sensor monitoring systems , rely on GPRS Network transmission signal , Need to pay communication fees, high operating costs , It is difficult to install a fixed power supply ; Therefore, a suitable production environment for open-pit mines is needed 、 Low operating costs 、 Easy to install and arrange 、 No need to fix the power supply 、 Do not rely on GPRS The Internet , It can transmit the fracture change data to the monitoring computer remotely and wirelessly , The computer monitoring software automatically forms the change curve , A practical system for landslide prediction .

2、 The displacement of slope crack includes horizontal and vertical movement direction , For the measurement of slope cracks, both horizontal and vertical directions should be measured , This makes the measurement of fracture displacement more complicated , Not easy to measure and analyze , Find a measurement method similar to daily measurement, which includes both vertical and horizontal changes , It will simplify the measurement , For this reason, we choose the wire type displacement sensor to solve this problem .