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

Air needle type sensor

A sensor and gas needle technology, which is applied in the direction of instruments, measuring devices, and fluid devices, can solve the problems of small measurement point area, high resolution, and measurement accuracy that cannot be continuously improved, and achieve high measurement resolution and easy installation and use. convenient effect

Inactive Publication Date: 2007-04-18
NANCHANG UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing pneumatic measurement generally adopts the nozzle size of φ0.4~φ2mm, and its measurement accuracy cannot be further improved
For high-precision measurement occasions with small size tolerances, small measurement point area and high resolution are required, and the existing pneumatic measurement methods obviously cannot meet the requirements

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
  • Air needle type sensor
  • Air needle type sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] As shown in Figure 1, the present invention includes a needle body 1 and a pressure sensor 2. It is characterized in that one end of the needle body 1 is an air inlet nozzle 3, and the other end is a measuring nozzle 5. The pressure sensor 2 is connected to the wall of the needle body 1, and the needle body 1 The inner cavity of the body 1 is an air chamber 4, and the entire needle body 1 is cylindrical, with a diameter of less than 10 mm and a length of less than 100 mm. Its air inlet nozzle 3 is parallel to or coincides with the central axis of the measuring nozzle 5 . The diameter of the nozzle is about 100um using a microfabrication method. During the measurement, the workpiece 6 faces the measuring nozzle 5, and the airflow ejected from the measuring nozzle is cylindrical, shaped like a thin needle. The measured displacement resolution can reach 0.1um.

[0011] As shown in Figure 2, the present invention includes a needle body 1 and a pressure sensor 2, which is ...

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 air pin type sensor. It includes pin body and pressure sensor. Its features are that one end of the pin body is nozzle of air supply; another end is measuring nozzle; its wall is connected with the pressure sensor; its cavity is air chamber. The invention has the advantages of microminiaturization structure, convenient installing and using, high measuring resolution which can be used in submicron size measuring.

Description

technical field [0001] The invention relates to an air needle sensor. Background technique [0002] The pneumatic measurement method uses high-pressure gas as the measurement medium, and uses the characteristics that the flow or pressure of the gas in the gas chamber changes with the geometric size or shape of the nozzle to convert the size or displacement into the change of flow or pressure. And further converted into electrical parameters, so as to realize the measurement of size and displacement. Since the pneumatic sensing method can realize non-contact measurement, and the high-pressure airflow has a cleaning effect when sprayed on the surface of the workpiece, the environmental requirements are not high; in addition to the advantages of simple structure, convenient operation and maintenance, and low cost, it is widely used in machinery, metallurgy, and aerospace. and other fields. The existing pneumatic measurement generally adopts the nozzle ...

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 Applications(China)
IPC IPC(8): G01B13/02
Inventor 梁发云赵前程邓善熙
Owner NANCHANG 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