Micro pump accelerated life testing method

A test method and life-accelerating technology, applied in pump testing, liquid variable capacity machinery, machines/engines, etc., can solve problems such as inability to directly transfer micro-pumps, unsuitable for high-speed micro-pumps, large time and economic costs , to achieve the effect of shortening the test period, strengthening the guiding significance, and reducing the test cost

Active Publication Date: 2019-06-11
HUAZHONG UNIV OF SCI & TECH
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current accelerated life test method for micropumps has been blank. The existing accelerated life test methods for other components are not suitable for micropumps with high speed and fixed single failure mode, and cannot be directly used in micropumps.
Without the acce

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
  • Micro pump accelerated life testing method
  • Micro pump accelerated life testing method
  • Micro pump accelerated life testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the purpose, technical method and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0044] Such as figure 1 As shown, the present invention proposes a kind of miniature pump accelerated life testing method, and this method comprises the steps:

[0045] S1 groups the micropumps of the same type, selects the voltage and working fluid temperature as the acceleration stress and sets the operating conditions respectively to ensure that at least 3 groups of micropumps have the same v...

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 belongs to the field of micro pumps and specifically discloses a micro pump accelerated life testing method. The method comprises the steps of grouping micro pumps, and selecting the voltage and the temperature of a working medium as accelerated stress to conduct continuous testing to obtain the pseudo-failure lifetime; conducting calculation to obtain the characteristic life of eachgroup of micro pumps and the activation energy and the index constant of the type of micro pumps; and selecting a solution reference group and obtaining the characteristic life of the type of micro pumps under the normal use conditions through the characteristic life of the solution reference group combined with the activation energy and the index constant. According to the micro pump acceleratedlife testing method, according to the characteristics that the failure of the micro pumps can be accelerated by voltage rising and temperature rising of the working medium of the micro pumps and thefailure mode of the micro pumps is fixed and single, the accelerated life of the micro pumps is tested with the voltage and the temperature of the working medium as the accelerated stress. The micro pump accelerated life testing method has the characteristics of high operability and easy testing regulation and control. Meanwhile, the test cycle can be shortened, and the test cost can be reduced.

Description

technical field [0001] The invention belongs to the field of micropumps, and more specifically relates to a method for testing the accelerated life of a micropump. Background technique [0002] A pump is a machine that moves or pressurizes a fluid. Generally, pumps whose size reaches the order of mm and below are called micropumps. As the "heart" of the microfluidic system, the micropump is the power source of microfluidic transportation, and can be widely used in drug delivery, blood transportation, DNA synthesis, electronic cooling system, micro-total analysis system, power battery, satellite propulsion system and other fields , the market demand is large, and the prospect is very broad. As a product, micropumps have attracted much attention from consumers for their service life. When the flow rate and head meet the requirements of consumers, the micropump with longer service life will be favored by consumers. For a micropump, the most effective and reliable way to kno...

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): F04B51/00
Inventor 罗小兵邹浩蓝威吴睿康范义文
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap