Supercharge Your Innovation With Domain-Expert AI Agents!

Sensitive circuit type dew point measuring method

A measurement method and circuit technology, applied in the direction of material water content, etc., can solve the problems of poor anti-pollution ability, unable to measure continuously, slow response speed, etc., and achieve the effect of low cost, simple measurement and good reliability.

Inactive Publication Date: 2012-06-27
BEIHANG UNIV
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical chilled mirror dew point meter is a dew point measuring device made using this principle. The main disadvantages are poor anti-pollution ability, slow response speed, incapable of continuous measurement of dew point, and high price.

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
  • Sensitive circuit type dew point measuring method
  • Sensitive circuit type dew point measuring method
  • Sensitive circuit type dew point measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] See image 3 , a sensitive circuit type dew point temperature measuring method of the present invention, the specific steps of the method are as follows:

[0024] Step 1: Press figure 2 With the electronic components and connections shown, make a Corpitts oscillating circuit board.

[0025] Step 2: see figure 1 , coated with heat-conducting silver glue on an AT-cut quartz wafer with a diameter of 9mm and an electrode diameter of 6mm. There is no electrode-covered area on the periphery of one of the surfaces. At the same time, two copper wires are respectively pasted on the same surface with heat-conducting silver glue. The two terminals of the electrode and paste the side of the quartz wafer coated with silver glue on the cooling surface of the semiconductor refrigerator, and the wires drawn from both ends of the quartz wafer electrode are connected to the Copitts oscillation circuit board as the entire oscillation circuit. A feedback link, the size of the semicondu...

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 sensitive circuit type dew point measuring method, which mainly comprises four steps: step one, making a Copitts oscillating circuit board; step two, making a conductor refrigerator refrigerate, and leaving the Copitts oscillating circuit to work continuously; step three, monitoring the output frequency of the Copitts oscillating circuit, and letting temperature sensorsto collect two temperature signals; and step four, monitoring whether the output frequency of the Copitts oscillating circuit is zero; if so, stopping the Copitts oscillating circuit, and stopping the temperature sensors collecting data, processing the data and saving results. With clever design, the method of the invention has the advantages of simple measurement, high sensitivity, good reliability, and low cost, and can provide a rapid early warning of humidity under working and production environments. And the method provided in the invention has good practical value as well as broad application prospects in the technical field of air state parameter measuring.

Description

technical field [0001] The invention relates to a sensitive circuit type dew point measurement method, which uses the characteristics of a Corpitts oscillating circuit to identify the dew point so as to achieve a method for measuring the dew point temperature, belonging to the technical field of air state parameter measurement. Background technique [0002] The amount of water vapor in the air is called humidity. Precise and fast measurement of humidity is one of the difficulties in chemical sensors. There are three basic forms of humidity, namely water vapor pressure (also known as absolute humidity), relative humidity, and dew point temperature. The three are closely related and can be converted into each other. Among them, the measurement of dew point temperature has been recognized internationally as the most precise method of humidity measurement. [0003] The dew point temperature is the temperature at which cooling reaches saturation under the condition of constant ...

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): G01N25/66
Inventor 孟晓风聂晶汪烁
Owner BEIHANG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com