Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultraviolet laser biomone counter

An ultraviolet laser, ultraviolet laser technology, applied in biochemical equipment and methods, microbe measurement/inspection, instruments, etc., to achieve the effect of multiple measurement functions

Inactive Publication Date: 2003-03-12
上海镭慎光电科技有限公司 +1
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention contains three light paths and one sampling gas path

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
  • Ultraviolet laser biomone counter
  • Ultraviolet laser biomone counter
  • Ultraviolet laser biomone counter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Such as figure 2 and 3 shown in the structure. The ultraviolet laser 8 is an all-solid-state laser after the triple frequency of the yttrium aluminum garnet (YAG) laser pumped by the semiconductor laser, its wavelength is 355nm, the beam diameter is φ0.25mm, and the power is 100mW. The beam expansion magnification of the beam expander group 9 is 4 times, that is, the cross section of the laser beam output by the beam expander group 9 is elliptical, and the lengths of its major axis and minor axis are 1.0mm and 0.25mm respectively. The focal length of the cylindrical lens 10 is 50 mm, and the size of the focal line formed by it in the photosensitive area 5 is 1.0 mm×0.173 mm. The two collimating mirrors 111 and 151 and the two focusing mirrors 113 and 153 in the scattered light receiving mirror group 11 and the fluorescence receiving mirror group 15 adopt the same structure, and the focal lengths of the two collimating mirrors 111 and 151 are 17.8mm, and the numerical...

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

An ultraviolet laser bioparticle counter for measuring the diameter and biological characteristics of the bioparticles suspended in air is composed of ultraviolet laser lighting path using ultraviolet laser device as light source, scattered light receiving path, fluorescence receiving path, and sampling air channel. It is characterized by that the filter in scattered light receiving path can reflect all fluorescence and the filter in fluorescence receiving path can reflect all ultraviolet laser beam. Its advantages are multiple function, and high sensitivity, receiving efficiency and S / N ratio.

Description

Technical field: [0001] The invention relates to an ultraviolet laser biological particle counter, which is mainly used for measuring the diameter and biological characteristics of suspended biological particles in the air. Background technique: [0002] Suspended particles floating in the air include non-biological particles and biological particles, such as planktonic microorganisms such as bacteria and fungi. Bioparticle cells contain fluorescent molecules such as riboflavin, nicotinamide adenine dinucleotide phosphate, and tryptophan. Under the irradiation of ultraviolet laser with a wavelength between 320 and 360nm with high photon energy, scattered light will be generated at the same time. and fluorescence. The wavelength of the scattered light is the same as that of the ultraviolet illumination laser, while the wavelength of the fluorescence is greater than that of the ultraviolet illumination laser, and its wavelength range is between 390 and 600nm. The geometric s...

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): C12Q1/02G01J1/00
Inventor 黄惠杰赵永凯任冰强程兆谷杜龙龙路敦武
Owner 上海镭慎光电科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com