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

Portable electric nose system based on USB interface

A technology of USB interface and electronic nose, applied in the field of portable electronic nose system, can solve the problems of inconvenient to carry, bulky, single function of electronic nose, etc., and achieve the effect of convenient collection and analysis

Inactive Publication Date: 2010-08-25
ZHEJIANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the aroma quality of general food is evaluated by people's sense of smell. Sensory evaluation mainly depends on people's physiological and psychological conditions, and the accuracy of evaluation results is often difficult to guarantee. With the development of sensor technology and microcomputers, electronic noses have become The detection tool has a very broad prospect, but the electronic nose currently used has a single function and is bulky and inconvenient to carry, especially it cannot be taken to the field for odor collection

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
  • Portable electric nose system based on USB interface
  • Portable electric nose system based on USB interface
  • Portable electric nose system based on USB interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] As shown in Figure 1, it includes an odor collection control system U1, a signal conditioning unit U2, a data acquisition system U3, a computer U4, two solenoid valves F1, F2 and an air pump B; the odor collection control system U1 is connected to the data via the signal conditioning unit U2 The acquisition system U3 and the data acquisition system U3 are respectively connected with the computer U4, the first solenoid valve F1, the second solenoid valve F2 and the air pump B.

[0018] As shown in Figure 1, in the described odor collection control system U1:

[0019] The gas sensor array QZ is composed of eight different gas sensors, which are packaged in the sensor reaction chamber H. The sensor reaction chamber H is connected to the air pump B, and the air pump B is respectively connected to the first solenoid valve F1 and the second solenoid valve F1 through the three-way T. The solenoid valve F2 is connected, the other end of the first solenoid valve F1 is connected ...

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

This invention discloses one portable electron nose system based on USB interface, whose smell test and data collection system comprises gas sensitive sensor array with gas input end connected to two electrical valve through three-way tube and two electromagnetic valve; wherein, its signal output end is connected to the data collection card through signal adjust; the data collection card output end is connected to computer through USB interface; gas control system comprises data collection card with output end connected to gas pump of switch circuit; in work, the computer opens gas pump by data collection card according to program firstly to switch gas path to smell collection status to convert the smell into electrical signals by data collection card to computer for process; the collection time is to switch gas path to clear status to delete the smell molecule for next collection.

Description

technical field [0001] The invention relates to a detection instrument for crop diseases and insect pests and the quality of agricultural products, in particular to a portable electronic nose system based on a USB interface. Background technique [0002] Different maturity stages of crops, different development stages of crop pests and diseases, and different storage periods of food all have different volatiles, and these volatiles are enough to make the gas sensor have a clear response, so that the electronic nose can detect and distinguish. On the other hand, the aroma quality of general food is evaluated by people's sense of smell. Sensory evaluation mainly depends on people's physiological and psychological conditions. The accuracy of the evaluation results is often difficult to guarantee. With the development of sensor technology and microcomputers, electronic noses have become The prospect of detection tools is very broad, but the electronic nose currently used has onl...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/00G01N33/02G01N35/00
Inventor 叶盛王俊张红梅
Owner ZHEJIANG UNIV
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