Apparatus for detecting precision of pressure scan system sensor in real time
A pressure sensor and sensor technology, applied in measurement devices, measuring fluid pressure, instruments, etc., can solve the problems of inability to real-time verification of pressure scanning system sensor acquisition accuracy and quality deterioration, etc., to achieve strong practicability, simple methods, and improved The effect of accuracy
Inactive Publication Date: 2012-05-02
NORTHWESTERN POLYTECHNICAL UNIV
View PDF11 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to overcome the shortcomings of the prior art that the accuracy of pressure scanning system sensor cannot be verified in real time and the quality of the sensor is reduced, the present invention provides a device for real-time verification of the sensor accuracy of the pressure scanning system, which overcomes the problem that the traditional technology can only verify the accuracy of a single pressure sensor Problems, the real-time verification of the accuracy of the pressure scanning system sensor can detect in time the decrease in the collection accuracy of the pressure sensor and the deterioration of the data collection quality, so as to ensure the accuracy of the data collected by the pressure scanning system sensor
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] figure 1 It is a schematic diagram of the device of the present invention, and N=608, M=38, and G=10 are selected. Using 608 pressure sensors with model PSI9816 to collect the output of 10 sets of pressure from the sensor calibration system model is JCX-1 to 38 multiplexers with model ADG731, 10 sets of analog pressure data are obtained, through the 16-bit model of AD9238 High-speed AD converter converts 10 groups of digital signal pressure data P 数字信号608 , 10 groups of real-time pressure data P are obtained by serial scanning of the pressure scanning acquisition system model PSI9816-98RK in chronological order 实时N , and stored in the real-time pressure memory model K9WBG08U1M, and the high-speed parallel acquisition card model EM-9135 collects 10 sets of digital signal pressure data P in parallel 数字信号608 , get parallel data P 并行608 , transmitted to the industrial control computer with model IPC610, the industrial control computer will parallel data P 并行608 It is tr...
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
Login to view more Abstract
The invention discloses an apparatus for detecting precision of a pressure scan system sensor in real time. Pressure transducers acquire pressure outputted by a sensor calibration system and send the pressure to a multi-path converter, and simulation pressure data is obtained. Through an AD converted, digital signal pressure data is obtained, through pressure scan acquisition system serial scanning, real-time pressure data is obtained, and simultaneously through high speed parallel acquisition card parallel acquisition, parallel data is obtained and transmitted to an industrial controller. The industrial controller transmits the parallel data to a pressure calibration source, pressure calibration is carried out on each pressure transducer respectively, and calibration data is obtained. The industrial controller takes the calibration data as a pressure standard, carries out precision grade detection on corresponding real-time pressure data, and detects a precision grade of the pressure transducers respectively. According to the invention, detecting precision of the pressure scan system sensor in real time can be carried out, a method is simple and reliable, and practicality is strong.
Description
technical field [0001] The invention relates to the technical field of calibrating pressure scanning system sensors, in particular to a device for calibrating the accuracy of pressure scanning system sensors in real time. Background technique [0002] The pressure scanning system is a pressure scanning pressure acquisition instrument, which is mainly used for the acquisition of airfoil surface pressure distribution and cave wall pressure in wind tunnel experiments. The pressure scanning system is composed of multiple pressure data channels. For example, the current general 9816 Ethernet intelligent pressure scanning system can scan and collect up to thousands of pressure data channels at the same time. The core of the pressure data channel is the pressure sensor. During the process of scanning and collecting data from the pressure sensor, there will be sensor acquisition errors due to various reasons. This problem is not easy to be found in real-time acquisition, which oft...
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
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): G01L25/00G01L27/00
Inventor 金承信高正红高永卫惠增宏焦予秦
Owner NORTHWESTERN POLYTECHNICAL UNIV
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
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