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

Flow sensor calibration method and system

A technology of flow sensor and calibration method, applied in test/calibration device, liquid/fluid solid measurement, instrument, etc., can solve the problems of low calibration efficiency, large error, low consistency, etc., to improve accuracy, small error, Consistent effect

Inactive Publication Date: 2017-07-21
SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
View PDF5 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flow sensor calibration method and system for solving the problems of low calibration efficiency, large error and low consistency

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
  • Flow sensor calibration method and system
  • Flow sensor calibration method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution 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.

[0025] figure 1 It is a flow sensor calibration system in the first embodiment of the present invention, which includes a flow sensor, a flow controller, a differential pressure sensor and a PC calibration terminal connected by a circuit; the flow controller is used to control the flow of fluid passing through the flow sensor, so The pressure difference sensor is used to detect the pressure difference generated by the fluid passing through the flow sensor, and the PC calibration terminal is used to write the calibration coefficient and / or compensation factor value into the characteristic parameter to calibrate the initial characteristic data of the flow sensor.

[0026] Wherein, the PC calibration terminal in the calibration system of this embodime...

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 the field of medical monitoring device testing, and provides a flow sensor calibration method. The method comprises the following steps that 11, a differential pressure sensor is adopted for detecting differential pressures corresponding to multiple fluid flows, a flow-differential pressure curve within a testing range is obtained, and the fluid flows are detected through the flow sensor to be calibrated; 12, the testing range is segmented, fitting of the flow-differential pressure curve is performed within the multiple segmented testing ranges, multiple segmented fitting curves are obtained, and calibration coefficients are determine; the segmented fitting curves are simple linearity curves or quadratic linearity curves. The invention further provides a flow sensor calibration system adopting the calibration method. The flow sensor calibration efficiency is high, errors are small, and the consistency is high.

Description

technical field [0001] The invention relates to the field of medical monitoring equipment testing, and more specifically, to a method and system for calibrating a flow sensor. Background technique [0002] Flow sensors are important components of medical monitoring equipment such as spirometers and ventilators. However, due to the difference in fluid composition, the design and manufacturing process of the flow sensor, etc., there are usually some differences in the measurement results of the flow sensor for the fluid flow. Therefore, in order to ensure the accuracy of medical monitoring results, the calibration of flow sensors is very important. The traditional calibration method of flow sensor usually needs to measure a lot of data such as outflow coefficient, expandability coefficient, diameter ratio, etc. through multiple experiments, which makes the calculation process of calibration parameters very complicated, which makes the calibration efficiency low; in addition, ...

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): G01F25/00
CPCG01F25/00
Inventor 陈镇鑫成其新章丽琴
Owner SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
Features
  • Generate Ideas
  • 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