scholarly journals Research of digital temperature measurement system in vacuum thermal test based on DS18B20

2018 ◽  
Vol 173 ◽  
pp. 03076
Author(s):  
Xi Zhu ◽  
Wangqing An ◽  
Liu Chang ◽  
Li ZhenWei ◽  
Liu Zeyuan
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Remote Monitoring ◽  
Thermal Environment ◽  
Platinum Resistance ◽  
Thermal Test ◽  
The Difference ◽  
The Stability ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Temperature measurement is a very important measurement project in spacecraft vacuum thermal test, and thermocouple measurement system is generally used for temperature measurement. In order to reduce the number of wire measuring circuit and improving the measurement system of anti disturbance and high measurement accuracy in vacuum thermal test process, which can be used in digital temperature measurement system of vacuum thermal test design, realizes the digital temperature measuring equipment of spacecraft and ground equipment. The system is composed of digital temperature sensor DS18B20 and acquisition device. It can be connected with remote monitoring computer through LAN network to realize remote monitoring of temperature. The hardware structure, communication protocol and software design of the digital temperature measurement system are given in this paper. The vacuum thermal environment test and comparison with the platinum resistance temperature measurement system. The results show that the stability of the system is good and the difference between the measured value and the PT100 measurement is within 0.5 °C, and the linearity is about ±0.1% which satisfies the requirement of vacuum thermal test.

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.

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.

Design of Temperature Measurement System Based on Microcontroller

2014 ◽  
Vol 513-517 ◽  
pp. 4039-4042
Author(s):  
Cao Rui ◽  
Kong Jun Bao
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Low Cost ◽  
Digital Signal ◽  
Single Chip ◽  
Display Function ◽  
Stable Performance ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

This temperature measurement system is based on the control of AT89S52 single chip microcontroller, with temperature display function. Temperature information is changed into digital signal directly by a single bus digital temperature sensor DS18B20, and the digital signal is sent into microcontroller for real-time acquisition. The results are displayed through LCD module 1602 in real time. The system is with the characteristics of low cost, high precision, stable performance and convenient operation. The system can be extended to multi-point temperature detecting system easily, and adding temperature transfinite alarm function.

Design of High Precision Temperature Sensor Based on Platinum Resistance

2014 ◽  
Vol 539 ◽  
pp. 177-180 ◽  
Author(s):  
Yi Zhen Nie
Keyword(s):  
Temperature Measurement ◽  
High Precision ◽  
Measurement System ◽  
Temperature Sensor ◽  
Platinum Resistance ◽  
Control Center ◽  
Precision Temperature ◽  
Nonlinear Compensation ◽  
Temperature Measurement System ◽  
Hardware Circuit

for Pt100 platinum resistance temperature measurement system has low accuracy, duplicate hardware circuit design and other issues, the articles design a high-precision temperature measurement system with Pt100 platinum resistance. With Pt100 temperature sensor, article takes STM32F103 as the control center through filtering, amplification and other signal conditioning circuit and a method of combining software look-up table to compensate the nonlinear compensation, thus achieving high-precision temperature measurement. Research results show that the system has a measurement accuracy high stability, scalability, and other characteristics.

Design of Wireless Temperature Measurement System for Chicken Hatch Field Based on LabVIEW

2015 ◽  
Vol 742 ◽  
pp. 186-190
Author(s):  
Jiao Mo ◽  
Ming Zhe Liu ◽  
Jian Bo Yang ◽  
Xu Wang
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Temperature Data ◽  
Design System ◽  
Real Time Processing ◽  
Display Module ◽  
Wireless Data Transmission ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Aiming at the influence of temperature on the rate of chicken’s hatchability in hatch field, this paper uses a flexible wireless VISA communication technology based on LabVIEW to measure and control the temperature in process of chicken hatching. The hardware part was composed of microcontroller C8051F530, digital temperature sensor DS18B20, wireless data transmission module nRF and display module HB240128 for real-time acquisition and processing of temperature data. The software part was written by graphical programming software LabVIEW, and used it to design system interface for functions of real-time processing of temperature data, waveform display, threshold alarm etc. The system can be implemented by hardware circuit itself and computer system interface for the temperature control, which enhanced flexibility of the system and was conducive to troubleshoot interference problems. The test results show that the temperature measurement system was characterized by simple operation, easy maintenance, steady performance and high accuracy.

The Design of Measurement System Based on Digital Temperature Sensors

2014 ◽  
Vol 1022 ◽  
pp. 139-142 ◽  
Author(s):  
Song Lin Huang ◽  
Jian Zhong Cui
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Digital Signal ◽  
Processing Unit ◽  
Central Processing ◽  
Temperature Detection ◽  
Monitoring Process ◽  
Industrial Monitoring ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Temperature measurement system is widely used in industrial monitoring, process control, intelligent home appliances and other fields. The traditional temperature detection method is to use the analog sensor, such as thermocouple or thermal resistance. This traditional temperature measurement system includes signal sampling circuit, amplifying circuit and A/D conversion circuit, which finally obtain the temperature digital signal. This kind of complex circuit leads to the weak anti-interference ability, which affects the reliability of the system. In this paper, a new design of digital temperature measurement system using digital temperature sensor AD7417 was presented. The sensor is connected to a central processing unit (CPU) via digital bus and the temperature value is displayed by LED. Practical application shows that the temperature measurement system is stable and reliable with strong anti-interference ability.

scholarly journals Apply IOT technology to practice a pandemic prevention body temperature measurement system: A case study of response measures for COVID-19

2021 ◽  
Vol 17 (5) ◽  
pp. 155014772110181
Author(s):  
Wei-Ling Lin ◽  
Chun-Hung Hsieh ◽  
Tung-Shou Chen ◽  
Jeanne Chen ◽  
Jian-Le Lee ◽  
...  
Keyword(s):  
Body Temperature ◽  
Temperature Measurement ◽  
Measurement System ◽  
Disease Surveillance ◽  
Disease Surveillance System ◽  
Temperature Detection ◽  
Wide Range ◽  
Body Temperature Measurement ◽  
Analysis System ◽  
Temperature Measurement System

Today, the most serious threat to global health is the continuous outbreak of respiratory diseases, which is called Coronavirus Disease 2019 (COVID-19). The outbreak of COVID-19 has brought severe challenges to public health and has attracted great attention from the research and medical communities. Most patients infected with COVID-19 will have fever. Therefore, the monitoring of body temperature has become one of the most important basis for pandemic prevention and testing. Among them, the measurement of body temperature is the most direct through the Forehead Thermometer, but the measurement speed is relatively slow. The cost of fast-checking body temperature measurement equipment, such as infrared body temperature detection and face recognition temperature machine, is too high, and it is difficult to build Disease Surveillance System (DSS). To solve the above-mentioned problems, the Intelligent pandemic prevention Temperature Measurement System (ITMS) and Pandemic Prevention situation Analysis System (PPAS) are proposed in this study. ITMS is used to detect body temperature. However, PPAS uses big data analysis techniques to prevent pandemics. In this study, the campus field is used as an example, in which ITMS and PPAS are used. In the research, Proof of Concept (PoC), Proof of Service (PoS), and Proof of Business (PoB) were carried out for the use of ITMS and PPAS in the campus area. From the verification, it can be seen that ITMS and PPAS can be successfully used in campus fields and are widely recognized by users. Through the verification of this research, it can be determined that ITMS and PPAS are indeed feasible and capable of dissemination. The ITMS and PPAS are expected to give full play to their functions during the spread of pandemics. All in all, the results of this research will provide a wide range of applied thinking for people who are committed to the development of science and technology.

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