Laser water level gauge based on laser distance measurement

Abstract

The invention relates to the photoelectric technology field, in particular to a laser water level gauge based on laser distance measurement. The laser water level gauge comprises a laser distance measuring instrument, an adjustable beam contracting system, a high-precision light sensing CCD, an upper tray, a lower tray, a cross-shaped level gauge, a screw, a data processing system and a supporting frame. The laser distance measuring instrument is fixedly arranged on the lower tray. The adjustable beam contracting system is located at a laser emitting opening front end of the laser distance measuring instrument. The high-precision light sensing CCD is fixed on the right side of the laser distance measuring instrument and the output end of the high-precision light sensing CCD is connected with the data processing system. The cross-shaped level gauge is fixed on the surface of the upper tray. One end of the supporting frame is fixed on the lower surface of the lower tray. The upper tray and the lower tray are connected through the screw. By means of the laser water level gauge based on laser distance measurement, the vertical precision of an incoming laser beam and a measured liquid level is high and meanwhile, the measurement errors are reduced and the height of the measuring liquid level can be efficiently and accurately measured. The laser water level gauge based on the laser distance measurement has the advantages of being simple in structure, reasonable in arrangement, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a laser water level gauge based on laser ranging. Background technique [0002] Non-contact measurement is widely used in liquid level detection. The existing non-contact measurement methods in water level gauges include: ultrasonic distance measurement method, sensor distance measurement method, and laser distance measurement method. When using the laser distance measuring method to measure, a laser beam adjustment device is installed. The traditional laser beam adjustment device is to install a bubble level on the laser range finder, and adjust the incident angle of the laser by adjusting the counter screw. Determine whether the laser beam is perpendicular to the measured liquid surface. There is a large error in the accuracy of this beam adjustment device, which cannot ensure that the output laser of the laser rangefinder is perpendicular to the measured liquid surfac...

AI Technical Summary

Problems solved by technology

There is a large error in the accuracy of this beam adjustment device, which cannot ensure that the output laser of the laser rangefinder is perpendicular to the measured liquid surface with high precision; at the same time, when the laser beam enters the measured liquid at a small incident angle Liquid level, the increase of measuring distance will lead to greater error

Images