Vibration Testing System for Ventilator Based on Virtual Instrument

2014 ◽  
Vol 496-500 ◽  
pp. 1139-1142
Author(s):  
Zheng Yun He ◽  
Xiao Feng Huang ◽  
Zheng Fang He
Keyword(s):  
Virtual Instrument ◽  
Test Methods ◽  
Vibration Measurement ◽  
Software Systems ◽  
Testing System ◽  
Signal Acquisition ◽  
Vibration Data ◽  
Function Design ◽  
Instrument Technology ◽  
Analytical System

To obtain reliable test data of ventilator vibration and overcome defects of the traditional vibration test methods such as complicated instruments, low reliability, high costs and so on, the vibration measurement and analytical system for ventilator is established based on the virtual instrument technology using circulating cooling circuit, advanced accelerometers and signal acquisition. The program for acquisition and process procedure of vibration data are compiled with LabVIEW which is the graphical and modular programming language. The structure, function, design idea and theoretical basis of hardware and software systems for the test are described respectively. It proves that this system is more accurate and practical than conventional vibration meter.

Automatic Liquid Level Detection System Based on LabVIEW

2012 ◽  
Vol 605-607 ◽  
pp. 1772-1775
Author(s):  
Lei Yu ◽  
Wei Na Liu ◽  
Hai Hong Wu
Keyword(s):  
Virtual Instrument ◽  
High Efficiency ◽  
Detection System ◽  
Automatic Measurement ◽  
Liquid Level ◽  
Displacement Sensor ◽  
Testing System ◽  
Management Technology ◽  
Instrument Technology ◽  
Structure And Design

This paper introduces the liquid level detecting system, using the laser displacement sensor to realize automatic measurement, using LabVIEW virtual instrument technology to data collection technology, network communication and database management technology are integrated in one system, has simple structure and design, strong universality, expanding the convenience and high efficiency of data transmission. Can be applied to different testing apparatus, the data acquisition system has good universality, is easy to embed other application testing system.

On the Motor Noise Testing System Based on LabVIEW

2015 ◽  
Vol 733 ◽  
pp. 631-634
Author(s):  
Chuan Ying Wang ◽  
Yu Kai Gao ◽  
Jie Wang ◽  
Feng Cui ◽  
Bao Hong Fu
Keyword(s):  
Virtual Instrument ◽  
Noise Source ◽  
Vibration Signal ◽  
Testing System ◽  
Effective Parameters ◽  
Motor Noise ◽  
Instrument Technology ◽  
Noise Vibration

This article is about detecting and analyzing the motor noise vibration signal with virtual instrument technology based on the LabVIEW basic platform, realizing the recognizing and processing of the motor noise source, and providing effective parameters for the motor fault diagnosing.

Research on the FBG Automatic Testing and Controlling System Based on Virtual Instrument Technology

2012 ◽  
Vol 468-471 ◽  
pp. 1278-1282
Author(s):  
Xiu Mei Jin ◽  
Yu Lei ◽  
Tao Wan
Keyword(s):  
Virtual Instrument ◽  
Control Program ◽  
Automatic Testing ◽  
Testing System ◽  
Engineering Structures ◽  
Fbg Sensor ◽  
Controlling System ◽  
Instrument Technology ◽  
Term Monitoring

Most civil engineering structures have long service life and situate in severe environment. So it is the key to carry out testing task continuously according to scheduled demands for the long-term monitoring based on FBG sensing. But the existing instruments cannot satisfy the long-term and remote testing demands. Based on virtual instrument and remote panel technique, the automatic testing and controlling system for FBG sensor array were developed. Modularization programming method was adopted and the control program can be adjusted according to practical demands freely. The testing system can save and figure the results automatically, and it can also discern and process the error signal. These extend and perfect the function of traditional FBG demodulation instrument, and make the testing system more flexible and reliable. It greatly reduces the difficulties in remote and long-term testing task.

A Computer Aided Testing System for an Aero Turbo-Shaft Engine

2011 ◽  
Vol 328-330 ◽  
pp. 542-546
Author(s):  
Chang Zheng Li ◽  
Yong Lei
Keyword(s):  
Information System ◽  
Data Acquisition ◽  
Virtual Instrument ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Testing System ◽  
Computer Aided ◽  
Instrument Technology ◽  
And Control

Engine running plays very important roles in a turbo-shaft engine production and maintenance. Traditional computer aided testing is just work as a data acquisition system to measure parameters and control some devices. In this paper, a CAT system is realized based on VXI and virtual instrument technology, which also communicate with the PLC, the ECU and the dynamometer, to provide a centralized information system for a turbo-shaft engine running. Multi-functions are realized to assistant users before, during and after experiments.

Research on Automatic Test System of Radar Board Based on Virtual Instrument Technology

2011 ◽  
Vol 121-126 ◽  
pp. 2002-2005 ◽  
Author(s):  
Wei Ming Du ◽  
Cai Bin Liu
Keyword(s):  
Virtual Instrument ◽  
Test System ◽  
Automatic Testing ◽  
Testing System ◽  
Automatic Test ◽  
Automatic Test System ◽  
Program Language ◽  
Instrument Technology ◽  
Labview Program ◽  
Automatic Testing System

Following the test work is difficult and complex in the modern radar maintenance support, the automatic testing of radar board is necessary for the radar maintenance man. A automatic test system of radar board based on virtual instrument technology is discussed. The system used PXI bus technology and Labview program language. The design of automatic testing system is given, its hardware solution and software solution is designed. And finally the reliability and expansibility of system design is discussed at last.

Research on Signal Acquisition and Analysis System Based on Virtual Instrument Technology

2014 ◽  
Vol 556-562 ◽  
pp. 4321-4324
Author(s):  
Hui Pan ◽  
Mei Gao ◽  
Yan Pan
Keyword(s):  
Virtual Instrument ◽  
Low Cost ◽  
Signal Acquisition ◽  
User Requirement ◽  
Development Platform ◽  
Instrument Technology ◽  
Analysis System ◽  
And Function ◽  
Virtual Signal ◽  
And Storage

In this paper, we used Lab VIEW development platform, designed a virtual signal acquisition and analysis system based on the soundcard. In addition we studied the signal acquisition performance of it. This system has functions of signal acquisition, analysis, waveform display and storage. It is easy to use with good interface, and function appending is available on user requirement. It offers a kind of DAQ solution with low cost. It has broad application prospect, can be extended to the field of speech recognition, ambient noise monitoring and laboratory measurement etc.

On Monitoring and Testing System of the Hydropower Unit Vibration Based on Virtual Instrument Technology

2011 ◽  
Vol 383-390 ◽  
pp. 279-284
Author(s):  
Luo Chang Wu ◽  
Hai Peng Nan ◽  
Xiang Yang Yu ◽  
Dao Li Zhao ◽  
Na Li ◽  
...  
Keyword(s):  
Virtual Instrument ◽  
Vibration Monitoring ◽  
Testing System ◽  
Time Sampling ◽  
Remote Diagnosis ◽  
Hardware Configuration ◽  
System Module ◽  
Instrument Technology ◽  
Design Idea ◽  
Made In

In this paper, the advantage of virtual instrument technology is analyzed, and vibration-monitoring system of hydropower unit based on virtual instrument technology was developed combining the requirement of vibration monitoring. The design idea on hardware configuration and functions of each software system module of the system are introduced. The test experiments are made in the laboratory. Experiment results show that the system developed in this paper can realize the function of real-time sampling of the data, monitoring, analyzing, testing and remote diagnosis of the hydraulic vibration.

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