Research on Temperature Test System Based on LabVIEW

2012 ◽  
Vol 155-156 ◽  
pp. 308-312
Author(s):  
Bing Guo ◽  
De Qi Ren
Keyword(s):  
Measurement System ◽  
Virtual Instrument ◽  
Measurement Accuracy ◽  
Test System ◽  
Virtual Instruments ◽  
Virtual Temperature ◽  
Temperature Measurement System ◽  
Value Measurement ◽  
Harsh Condition ◽  
Temperature Test

As it is difficult to measure the temperature accurately under actually environment, this paper develops a virtual temperature measurement system based on LabVIEW. The system consists of AD590 temperature sensor and virtual instrument, and the properties and structure of AD590 is discussed in this paper. In addition, we do some research on the measurement method, and use soft filter and Normalized method to remove noise and improve the measurement accuracy. The structure and soft system of the virtual instruments system are designed and a high value measurement system is achieved using the resources of the virtual instruments. The experimental results have shown that the system can satisfy the accurate requirement in harsh condition.

Analysis of Multi-Channel Virtual Temperature Measurement System Hardware Design and its Uncertainty

2012 ◽  
Vol 220-223 ◽  
pp. 1423-1426
Author(s):  
Ke Qin Liu ◽  
Xue Tao Pan ◽  
Jian Wen Cai
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Virtual Instrument ◽  
Measurement Range ◽  
Platinum Resistance ◽  
Total Uncertainty ◽  
Technical Parameters ◽  
Calculation Results ◽  
Virtual Temperature ◽  
Temperature Measurement System

According to a number of issues in the traditional temperature measurement, the multi-channel temperature measurement system based on virtual instrument is developed. In terms of measurement range and accuracy, Integrated Temperature Sensor TMP36, platinum resistance Pt100, and K-type thermocouple are selected to achieve multi-point temperature measurement, signal conditioning circuit is designed to match with every sensor. On this basis, combined with the technical parameters of each component, by means of the theory of uncertainty, analysis of the total uncertainty of system has been made. The calculation results show that the selection of each component for the temperature measurement system is reasonable, which can completely meet the measurement requirements.

Seawater Temperature Measurement System Based on Virtual Instrument

2012 ◽  
Vol 457-458 ◽  
pp. 1424-1427
Author(s):  
Wei Chen ◽  
Di Zhao
Keyword(s):  
Temperature Measurement ◽  
Virtual Instrument ◽  
High Performance ◽  
Seawater Temperature ◽  
Test System ◽  
Sea Temperature ◽  
Practical Applications ◽  
Labview Software ◽  
Temperature Measurement System ◽  
Temperature Test

The traditional measuring instrument of temperature mainly consists of different types of hardware, whose cost and scale are quite big, and whose operation is inconvenient. In many practical applications, describing the measured objects only by accurate values is not enough. Aiming at these problems, the design of sea temperature test system based on Virtual Instrument has been introduced in this paper. The temperature test system combines high performance PCI-6014 data acquisition card with sensor elements and amplifying circuit. On the basis of LabVIEW software platform, an application software for temperature measurement has been designed, whose functions include real-time acquisition of test signal, data processing and data display.

Colorimetric Temperature Measurement Algorithm Based on Multi-Sensor Data Fusion

2014 ◽  
Vol 530-531 ◽  
pp. 146-150
Author(s):  
Fan Wei Meng ◽  
Qing Tian ◽  
You Liang Yang
Keyword(s):  
Standard Deviation ◽  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Image Sensor ◽  
Sensor Data ◽  
The Real ◽  
Measurement Algorithm ◽  
Temperature Measurement System

Wavelength and other factors have a deep influence on temperature measurement system based on CCD image sensor. Deviations between measurement values sometimes are large. In order to reduce error, the temperature outputs in different wavelength combinations do have multi-sensor correlation properties in point of colorimetric temperature measurement system view. The colorimetric temperature measurement algorithm based on real-time adaptive weighted is put forward by such performance index that minimum of standard deviation. According to measured value of each sensor, we will find out the corresponding weights in adaptive manner. And discuss the statistical properties of the estimated standard deviation. Estimation unbiasedness is proved. The algorithm has the following advantages .A much smaller amount of calculation, without any a priori knowledge, only relying on the output of each sensor. All of these make temperature estimation be optimal, measurement accuracy and the real-time performance of the system are improved. Theoretical analysis and experimental results show that the colorimetric temperature measurement algorithm based on the real-time adaptive weighted improves obviously when comparing with the traditional means algorithm in measurement accuracy.

Research of Non-Contact Stiffness Measurement Technology

2014 ◽  
Vol 621 ◽  
pp. 331-336
Author(s):  
Wen Xuan Liu ◽  
Hui Feng Wang ◽  
Guang Lin Wang ◽  
Dong Xiang Shao
Keyword(s):  
Measurement System ◽  
Elastic Element ◽  
Measurement Method ◽  
Measurement Accuracy ◽  
Contact Stiffness ◽  
Test System ◽  
Measurement Technology ◽  
Servo Valve ◽  
Stiffness Measurement ◽  
Definition Of

This article describes the elastic element of the servo valve, elaborates the definition of the stiffness of elastic element, analyzes the characteristics of existing rigidity measurement system, points out the limitations of the existing rigidity measurement system when it measures the large-stiffiness elastic element, utilizes a new measuring principle based on the existing stiffness test systems, uses the more accurate laser displacement measurement method to overcome the weaknesses of the existing stiffness test system, improves the measurement accuracy, makes stiffness measurements more accurate and promotes the stiffness measurement technology of the servo valve elastic element.

Desing of Real-Time Temperature Measurement System Based on Semiconductor Laser Diode

2014 ◽  
Vol 687-691 ◽  
pp. 886-889
Author(s):  
Zhong Shu Yang
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Laser Diode ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Semiconductor Laser Diode ◽  
Large Size ◽  
Controlling System ◽  
Airplane Engine ◽  
Temperature Measurement System

Thermoelectric couple was employed in traditional airplane engine temperature measurement system with the disadvantages of large size,heavy weight,big error and slow response.This paper presents a new kind of real—time temperature measurement system using laser diode InGaAs/I as light source,and using pyroelectric detector LiTa03 as optical receiving unit and using a microprocessor as signal processing center.This instrument consists of three parts:optical emitting and receiving system,signal amplifying and controlling system,and display system。The principle and structure of the system are introduced.Experimental results of airplane engine real—time temperature measurement show that temperature measurement accuracy and response time conform to our requirement in the range of 300°C一800°Cand agree with prediction of theory.All these prove that the design is correct.

Reconfigurable Virtual Instrument Test System Research Based on Mobile Platform

2014 ◽  
Vol 599-601 ◽  
pp. 1946-1949
Author(s):  
Xue Kun Song ◽  
Peng Fei Song ◽  
Pei Jiang Zhang
Keyword(s):  
Measurement System ◽  
Mobile Communication ◽  
Virtual Instrument ◽  
Test System ◽  
Communication Platform ◽  
Network Testing ◽  
System Reconfiguration ◽  
Interactive Operation ◽  
Virtual System ◽  
Wireless Network Testing

Based on mobile communication platform, the dynamic measurement system of component virtual instrument structure assemble model was proposed according to the conditions of bad commonality and mobility of tradition measurement system. Reconfiguration virtual system of mobile communication platform was realized by the use of virtual instrument system of measuring different parameters at the Android operating system and accomplished wireless network testing capabilities meanwhile, and the flexibility and scalability of wireless interactive operation and meassured data in real-time monitoring system can be enhanced.

Virtual Instrument-Based Cable and Harness Test System Hardware Design and Development

2011 ◽  
Vol 301-303 ◽  
pp. 970-976
Author(s):  
Qi Wang
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Hardware Design ◽  
Test System ◽  
Virtual Instruments ◽  
Instrument Panel ◽  
Hardware System ◽  
On Line ◽  
And Control ◽  
Graphic Environment

The virtual instruments utilize the powerful graphic environment and on-line help of computer to establish the virtual instrument panel and control the instrument, analyze and display the data, replace the traditional instruments and change their using modes, improve their functions and efficiency. This system utilized the virtual instruments technology, and PC/104 bus-based embedded data acquisition to develop the cable and harness test hardware system.

scholarly journals The Investigation of Anti-Jamming Technology For Temperature Measure System in Spacecraft Thermal Test

2018 ◽  
Vol 173 ◽  
pp. 01033
Author(s):  
An Wanqing ◽  
Zhu Xi ◽  
Feng Yao ◽  
Liang Shuo ◽  
Wang Qingyu
Keyword(s):  
Temperature Measurement ◽  
Test Temperature ◽  
Measurement System ◽  
Test System ◽  
Acquisition System ◽  
Thermal Test ◽  
Interference Test ◽  
Set Up ◽  
The Stability ◽  
Temperature Measurement System

At present, the spacecraft thermal test temperature measurement system has not been designed effectively. In the spacecraft experiment, the defects of anti-interference ability and system instability are exposed. Firstly, the composition and status of the temperature measurement system of spacecraft thermal test are analyzed. And then we set up a system to interfere with fault tree according to existing problems, locate the problem and determine the source of the interference. Finally, the anti-interference scheme and implementation are developed, and the test data of anti-interference test system is set up. The anti - jamming performance of the anti - jamming scheme of thermal test temperature acquisition system was evaluated. The results show that it can improve the anti-jamming capability of the spacecraft thermal test temperature acquisition system and improve the stability of the system.

Based on LabVIEW Resistance Method Temperature Testing for Traction Transformers and Motor Winding

2012 ◽  
Vol 588-589 ◽  
pp. 488-491
Author(s):  
Yu Hua Wang ◽  
Peng Yu Wang ◽  
Guo Qing Zhang
Keyword(s):  
Virtual Instrument ◽  
Data File ◽  
Test System ◽  
Resistance Method ◽  
Depth Study ◽  
Actual Operation ◽  
Time Test ◽  
Management Functions ◽  
Temperature Test

Temperature is an important parameter for the characterization of the transformer and the motor running. Winding temperature test according to the actual operation of the traction transformer and motor temperature protection device requirements, in-depth study, temperature test of the traction transformer based on virtual instrument and traction motor winding resistance method, the method using LabVIEW to develop test software, respectively, for data acquisition, data playback, data analysis and processing, data file management functions, and temperature test equipment, not only real-time test system, but also post-processing the data after the test, in order to analysis of the factors that affect the temperature of the windings. Validity of the method is proved by experiments.

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