Sliding table type laser displacement sensor and sensor system comprising same

Abstract

The invention discloses a sliding table type laser displacement sensor and a sensor system comprising the sliding table type laser displacement sensor, the sliding table type laser displacement sensor comprises a sliding rail base, a ball screw, ball screw supporting pieces and a motor, the ball screw supporting pieces are fixedly connected to the two sides of the sliding rail base, the ball screw is erected between the two ball screw supporting pieces, and the motor is arranged on the sliding rail base. The ball screw is rotationally connected with the ball screw supporting piece, the ball screw is in driving connection with the motor, the motor is fixedly connected with the ball screw supporting piece, the ball screw is sleeved with the sliding block, the sliding block is fixedly connected with the laser transmitter, and the laser transmitter is used for collecting distance signals between the laser transmitter and a measured object. The sliding table type laser displacement sensor has the advantages of being simple in structure, convenient to install, high in reliability and flexible and accurate in measurement process.

Description

technical field [0001] The invention relates to the technical field of bridge health monitoring, in particular to a slide-type laser displacement sensor and a sensor system comprising the same. Background technique [0002] At present, drawstring displacement sensors, magnetostrictive displacement sensors and laser displacement sensors are generally used to measure the displacement of supports in bridge health monitoring systems; The telescopic pull rope makes the internal spring deformed and cannot rebound, which affects the use effect; when the magnetostrictive displacement sensor measures the displacement of the bridge support, the rod is deformed and bent due to the influence of forces in different directions on the bridge; the laser displacement sensor is due to Its own range limitation, in the long-term monitoring of the bridge, the range cannot meet the demand, and the accuracy is often relatively poor when using a large-range laser displacement sensor, the measuremen...

AI Technical Summary

Problems solved by technology

[0002] At present, drawstring displacement sensors, magnetostrictive displacement sensors and laser displacement sensors are generally used to measure the displacement of supports in bridge health monitoring systems; The telescopic pull rope makes the internal spring deformed and cannot rebound, which affects the use effect; when the magnetostrictive displacement sensor measures the displacement of the bridge support, the rod is deformed and bent due to the influence of forces in different directions on the bridge; the laser displacement sensor is due to Its own range limitation, in the long-term monitoring of the bridge, the range can not meet the demand, and when using a large-range laser displacement sensor, the accuracy is often relatively poor, the measurement value of long-term monitoring will produce large errors, and the measurement effect is not ideal

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