High-sensitivity photoelectric level detection device

A technology of level detection and high sensitivity, applied in the fields of sensing technology, optoelectronic technology and mechanical technology, it can solve the problems of low sensitivity and resolution, high requirements for level detection and automatic level adjustment, etc. quick effect

Inactive Publication Date: 2017-09-19
HUNAN UNIV OF SCI & ENG
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 exp

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-sensitivity photoelectric level detection device
  • High-sensitivity photoelectric level detection device
  • High-sensitivity photoelectric level detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The invention comprises a dark box (1), a flat mirror (2), a PSD photoelectric sensor (3), a filament (4), and a laser (5). A flat mirror (2) is fixed on the bottom of the dark box (1), a PSD photoelectric sensor (3) is fixed on the upper bottom, and the laser (5) is suspended at the center of the upper bottom of the dark box (1) by a filament (4). The laser (5) It can swing around point O in a vertical plane. The obscura (1) is in the shape of a cuboid, and the inner wall becomes black, which is opaque and does not reflect light; the plane mirror (2) is in a rectangular shape. The PSD photoelectric sensor (3) adopts the model BOS-PSD0018, which converts light displacement into current change. The upper end of the filament (4) is fixed at the center of the upper bottom surface of the dark box (1), and the lower end hangs the laser (5); the light from the laser (5) shoots down to the plane mirror (2), and is reflected by the plane mirror (2) to the PSD photoelectric sen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01C9/14G01C9/06
CPCG01C9/06G01C9/14
Inventor 刘志壮张文昭
Owner HUNAN UNIV OF SCI & ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap