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

Method for improving detection near-space precision

A near-air and high-precision technology, used in hypodermic injection devices, optical device exploration, etc., can solve the problems of low detection accuracy and high cost, and achieve the effect of solving the problem of detection errors, reducing product costs, and flexibly controlling

Active Publication Date: 2010-02-10
BEIJING AEONMED
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this scheme of the potentiometer, the detection accuracy is high, but the cost is relatively high
But for the photoelectric switch, the detection accuracy is not high for the traditional method

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
  • Method for improving detection near-space precision
  • Method for improving detection near-space precision
  • Method for improving detection near-space precision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0018] figure 1 is a structural diagram of the near-air detection system according to the present invention.

[0019] Such as figure 1 As shown, the near-air detection system is composed of an injection injection mechanism 6 , a detection mechanism 2 , a support structure 3 and a driving mechanism 4 . The photoelectric switch 2a of the detection mechanism 2 is fixed on the injection mechanism mounting plate 1b with screws, and the light blocking sheet 2b is installed on the injection mechanism moving block 5b. During the injection process, the moving block 5 moves along the injection direction, and the light blocking sheet 2b also moves forward. When the injection...

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 provides a method for improving detection near-space precision. The method comprises the following steps: under a calibration mode, recording a first calibration propelling quantity NE1 when a light blocking sheet on a moving component of an injector blocks a photoelectric switch on an injection pump, and recording an empty propelling quantity NE2 when a piston of the injector movesto the end; calculating a calibration relative quantity difference delta NE between the first calibration propelling quantity NE1 and a near-space relative quantity NE0 according to the preset near-space relative quantity NE0 of the injector, the first calibration propelling quantity NE1 and the empty propelling quantity NE2; and under a normal injection mode, recording a first propelling quantity E1 when the light blocking sheet blocks the photoelectric switch, using the difference of a real-time second propelling quantity E2 recorded when the piston of the injector moves and the first propelling quantity E1 as a working relative quantity difference E3 to be compared with the calibration relative quantity difference delta NE, and judging that the injector is propelled to a near-space state when the working relative quantity difference E3 is greater than the calibration relative quantity difference delta NE.

Description

technical field [0001] The invention relates to a detection system, and more particularly, to a method for improving the accuracy of near-space detection. Background technique [0002] At present, the performance of syringe pumps for medical devices has a near-air alarm function. The commonly used near-empty detection mechanism mainly uses the potentiometer to sample the voltage value in real time and the switching value of the photoelectric switch to judge whether it is near-empty. For this solution of the potentiometer, the detection accuracy is high, but the cost is relatively high. But for the photoelectric switch, the detection accuracy is not high for the traditional method. Wherein, near-empty refers to a state in which the liquid in the syringe is nearly empty during a normal injection process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for improving the accuracy of near-space detection, ...

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): G01V8/10A61M5/00
Inventor 傅军
Owner BEIJING AEONMED
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