High-sensitivity photoelectric level detection device

Abstract

The invention relates to a high-sensitivity photoelectric level detection device. The high-sensitivity photoelectric level detection device comprises a dark box, a plane mirror, a PSD (Position Sensitive Device) photoelectric sensor, a filament and a laser, wherein the dark box is cuboid-shaped; the plane mirror is fixed on a lower bottom surface of the dark box; the PSD photoelectric sensor is fixed on an upper bottom surface of the dark box; the laser is suspended in the center of the upper bottom surface of the dark box through the filament. When the dark box is placed horizontally, the plane mirror is irradiated by light spots of the laser and reflects the light spots to the center of the PSD photoelectric sensor; when the dark place inclines, the plane mirror is irradiated by the light spots of the laser and reflects the light spots to a non-central area of the PSD photoelectric sensor, the displacement of the light spots relative to the center is converted into proportional current through the PSD photoelectric sensor, and the inclination of the dark box is converted from the current.

Description

technical field [0001] The invention involves sensing technology, photoelectric technology and mechanical technology, especially combining them together to form level detection technology. Background technique [0002] Level detection is often used in construction, industrial and agricultural production, scientific research, national defense, and daily life. Especially in scientific experiments, there are sometimes high requirements for level detection and automatic level adjustment. The commonly used sensitivity and resolution are low and cannot meet the requirements. The invention designs a level detection device which improves the light spot displacement sensitivity by using a light reflection method. Contents of the invention [0003] In order to improve the sensitivity and resolution of the level detector, a high-sensitivity photoelectric level detector is designed. The invention comprises a dark box (1), a flat mirror (2), a PSD photoelectric sensor (3), a filament ...

AI Technical Summary

Problems solved by technology

[0002] Level detection is often used in construction, industrial and agricultural production, scientific research, national defense, and daily life. Especially in scientific experiments, sometimes the requirements for level detection and automatic level adjustment are very high, and the commonly used low sensitivity and resolution cannot meet the needs.

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