scholarly journals Low-cost Arduino-based Temperature Measuring System

Author(s):  
Nazareno de Oliveira Pacheco ◽  
Giovani Batista ◽  
Anderson Fontes Estuqui ◽  
Lucas da Silva

The commercial equipment that carries out the measurement of temperature has a high cost. Therefore, this article describes the development of a temperature measurement equipment, which uses a microcontrolled platform, responsible for managing the data of the collected temperature signals and making available the acquired information, so that they can be verified in real time at the measurement site, or remotely. The construction of the temperature measurement equipment was performed using open platform hardware / software, where performance tests were carried out with the objective of developing a temperature measurement equipment that has measurement quality and low cost.

2014 ◽  
Vol 1037 ◽  
pp. 143-146
Author(s):  
Xiao Qiong Zuo ◽  
Jian Ping Jia ◽  
Juan Lei

This paper proposes a temperature measuring method of low cost and stable precision based on platinum resistance. RC discharge circuit is composed of platinum resistor and fixed capacitor,the discharge time of fixed capacitance in the circuit is used for calculating the platinum resistance temperature resistance. The experimental results show that this is a simple and low cost method .


2014 ◽  
Vol 513-517 ◽  
pp. 4039-4042
Author(s):  
Cao Rui ◽  
Kong Jun Bao

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.


2021 ◽  
Vol 1 (63) ◽  
pp. 78-87
Author(s):  
V. Hraniak ◽  

The temperature of the pole windings is one of the main informative parameters, the deviation of which may indicate the presence of a number of common defects of electrical machines. However, the implementation of high-precision means for measuring the temperature of the pole windings of the electric machine rotor is associated with a number of technical difficulties. The aim is to increase the accuracy of measuring the temperature of the pole windings of the rotor of an electric machine by developing a contactless method and means of measuring the temperature of the pole windings of the rotor in real time. The paper shows that the existing most common methods of temperature measurement have significant disadvantages that limit the possibility of their use for the implementation of means of measuring the pole windings of the rotor of an electric machine. A bispectral pyrometric method of temperature measurement is proposed, which provides simultaneous conversion into voltage of functionally temperature-dependent spectral densities of radiation for two spectrally close electromagnetic waves with subsequent finding of their ratio, which allowed to remove the most significant components of methodical measurement characteristic of classical pyrometers. The design of the bispectral pyrometric measuring system of temperature of pole windings of a rotor of rotating electric machines realized on the basis of the offered method of measurement, suitable for work in a real-time mode together with systems of control of a technical condition and diagnostics is developed.


2013 ◽  
Vol 411-414 ◽  
pp. 1625-1630
Author(s):  
Si Yuan Ren ◽  
Shi Liu

A set of temperature measuring system hardware circuits is presented and investigated regarding to static errors. The measurement accuracy of the system can be up to 1%in the industrial applications. In addition, this paper proposes a recommending method to select hardware equipment and this approach plays an important role in temperature measurement in industrial applications.


2014 ◽  
Vol 960-961 ◽  
pp. 488-492
Author(s):  
Fei Huang ◽  
Da Jun Zhao

Supporting of deep foundation of ditch has become outstanding issues. As a kind of effective supporting measurement, independent development of automatic temperature measuring system and wireless transmission system Foundation ditch and froze soil’s retaining wall has been taken into account. According to study of automatic temperature measurement of foundation ditch and froze soil’s retaining wall and system of wireless transmission, this paper gets its own result. It plays an important role in temperature in foundation ditch and froze soil’s retaining wall and survey in change of froze soil’s retaining wall. And at the same time, we can transfer information and reduce the possibility of damage wire in engineering site. Foundation ditch and froze soil’s retaining wall is a kind of environmental. It has an important meaning in deducing cost of foundation ditch and environmental construction.


2011 ◽  
Vol 130-134 ◽  
pp. 3548-3552
Author(s):  
Zhang Liang Wu ◽  
Chang Ku Sun ◽  
Jie Liu

Adoption of machine vision inspection and computer image processing technology, an oil-seal dimension measuring system was developed to meet the requirement of online production and real time inspection. The makeup and principle of the system were introduced, as well as its working process and design requirements were described on detailed. The technique of quadratic filtering for image preprocessing combined with the principle of three points determining a circle, point Hough transform and the least squares was employed for image processing algorithm, and high precision sub-pixel edge detection was achieved. The measuring results of experiments demonstrated that the inspection goal on 100 percents of products could be realized successfully, and with many advantages such as non-contact, on-line, real time, appropriate precision and low cost, the system can be applied widely in other production fields.


2011 ◽  
Vol 467-469 ◽  
pp. 355-358
Author(s):  
Yu Zhang ◽  
Sheng Wei Zhang ◽  
Ying Zhu Huang ◽  
Jie Ying He

A new sensor-based temperature measuring system with high accuracy is presented in this paper. The temperature accuracy smaller then 0.02K is the measured performance of the measuring system after calibration at ten temperatures, over the -50°Cto 300°C targeted temperature range. Comparing with the traditional temperature measuring system, the advantages of the new sensor-based temperature measuring system are the high precision, immunity to noise, independent with the length of sensor wires and remote operation. And all these are at a low cost with less then 36mW of power consumption. Therefore the sensor-based temperature system is suitable for any field where reliable and accurate temperature measurement or a wide measurement range is necessary.


Author(s):  
P.R. Hernández ◽  
C.A. Galán ◽  
A. Morales ◽  
S. Alegret

A portable and low cost measuring system for amperometric chemical sensors using the three-electrode technique was developed. This technique allows chemical sensors to work with currents higher than ten microamperes. The system was based on a potentiostat operation, completed with an I-V converter and signal conditioning circuits. The instrument was evaluated comparing calibration curves of hydrogen peroxide, proving several amperometric chemical sensors and biosensors, to those obtained from a very expensive commercial equipment. Good linearity and sensibility as well as low noise measurements were obtained. Moreover, because the reduced size and low cost, the instrument allows to be used directly in field applications.


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