Pulse-type steel wire displacement sensor

Abstract

The invention relates to a pulse-type steel wire displacement sensor which comprises a steel wire, a transmission mechanism, a pulley switch, a pulse generator, a counter and a digital display device, wherein the steel wire is connected with the transmission mechanism which is connected with the pulley switch that is connected with the pulse generator. The steel wire passes through a pulley, so that the pulley is driven to rotate when the steel wire moves. The pulley is connected with the pulse generator, so that a circuit can generate pulse when the pulley slides at a certain angle, and the sliding angle of the pulley can be obtained by accumulating the pulse number. The steel wire displacement value can be obtained by the accumulated pulse number by establishing the relationship between the length change of the steel wire and the pulse number, so that the side slope displacement information can be reflected. The pulse-type steel wire displacement sensor has high sensitivity, wide measuring range, high accuracy and low price, can realize wireless remote real-time monitoring, and is not limited by weather condition.

Description

Technical field [0001] The invention adopts a new type of slope displacement monitoring device, which reflects the slope displacement by the change of steel wire length, and uses mechanical transmission and pulse generator to measure the change of the steel wire length. This device has a large range, high accuracy, and can realize slope displacement Wireless remote real-time monitoring belongs to the field of physical processing technology. Background technique [0002] Slope sliding is the most harmful geological disaster except earthquakes. Landslides have brought great harm to the national economy, so effective monitoring of landslides is extremely important. Slope displacement monitoring includes surface displacement monitoring and deep displacement monitoring. At present, the most commonly used optical instruments such as total stations and levelers are used for surface displacement monitoring. This monitoring method is restricted by weather conditions and cannot be used t...

AI Technical Summary

Problems solved by technology

The inclinometer mainly monitors the deep horizontal displacement of the slope. It is expensive and has a small range. When a large displacement occurs on the slope, the inclinometer is easily damaged by shearing.

Although the settlement meter can monitor the settlement of each soil layer of the slope, and can also realize remote monitoring, it is expensive and complicated to install. When the slope has a large displacement, the settlement meter is also easily damaged by shearing.

[0003] The wire displacement meter can realize the surface and deep displacement of the slope, which has the advantages of large measuring range and low price. However, the traditional wire displacement meter uses a potentiometer to measure the displacement of the wire, which has low sensitivity and low accuracy.

Images