Multi-channel pressure gauge self-test device, self-test method thereof and self-test system thereof

A technology of self-checking device and pressure gauge, which is applied in the direction of measuring device, measuring fluid pressure, instrument, etc., can solve the problems of large error, complicated operation, high cost, etc., and achieve the effect of convenient control, simple operation and guaranteed consistency

Active Publication Date: 2016-11-09
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Based on this, it is necessary to provide a multi-channel manometer self-inspection device and its self-inspection method and self-inspection system for the problems of high cost, complicated operation and large error of the traditional manometer self-inspection scheme

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
  • Multi-channel pressure gauge self-test device, self-test method thereof and self-test system thereof
  • Multi-channel pressure gauge self-test device, self-test method thereof and self-test system thereof
  • Multi-channel pressure gauge self-test device, self-test method thereof and self-test system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In order to solve the problems of high cost, complicated operation and large error of the traditional manometer self-test scheme, the present invention provides a multi-channel manometer self-test device embodiment 1, figure 2 It is a structural schematic diagram of Embodiment 1 of the multi-channel manometer self-checking device of the present invention; as figure 2As shown, a self-calibration module 210 may be included; the self-calibration module includes a plurality of pneumatic reversing valves 218; each pneumatic reversing valve 218 is respectively connected between the gas capacity 110 and the pressure sensor 120 of each channel of the multi-channel manometer; the pressure sensor 120 is connected to the micro control unit of the multi-channel pressure gauge; the self-calibration module 210 is also connected with the micro control unit;

[0044] The micro control unit sends the first reversing control signal and air pressure control signal to the self-calibratio...

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 multi-channel pressure gauge self-test device, a self-test method thereof and a self-test system thereof. The multi-channel pressure gauge self-test device comprises a self-calibrating module. The self-calibrating module comprises a number of pneumatic commutation valves. Each pneumatic commutation valve is connected between an air-capacitor and a pressure sensor of a channel of a multi-channel pressure gauge. Each pressure sensor is connected with a micro control unit of the multi-channel pressure gauge. The self-calibrating module is connected with the micro-control unit. According to the invention, the self-calibrating channel function is increased based on the multi-channel pressure gauge; the function to calibrate multiple pressure gauges is kept; if an internal pressure sensor needs to be calibrated, multi-channel pressure sensor self-calibrating can be effectively and quickly carried out; and pressure sensor self-calibrating of all channels can be completed at one time simply with the connection of an external high-precision pressure gauge.

Description

technical field [0001] The invention relates to the field of self-calibration of sensors in pressure gauges, in particular to a multi-channel pressure gauge self-checking device, a self-checking method and a self-checking system. Background technique [0002] In the production process of blood pressure measurement products such as sphygmomanometers, it is necessary to use a high-precision manometer to calibrate the pressure measurement module of the sphygmomanometer to improve the pressure measurement accuracy of the sphygmomanometer. At the same time, as an instrument for blood pressure calibration, it is necessary to self-calibrate the high-precision manometer regularly to meet the requirements of use. [0003] The traditional technology mainly adopts the following two schemes to calibrate the blood pressure monitor: [0004] Solution 1: Use a single-channel high-precision manometer to calibrate the sphygmomanometer. During calibration, a high-precision manometer is conn...

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): G01L27/00
CPCG01L27/005
Inventor 蒲周平
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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