Measurement of temperature distribution using a three-wire system of sensors based on thermistors
Автор: V. A. Derevyanko, A. V. Makukha
Журнал: Siberian Aerospace Journal @vestnik-sibsau-en
Рубрика: Aviation and spacecraft engineering
Статья в выпуске: 3 vol.20, 2019 года.
Бесплатный доступ
Improving the reliability and increasing the avionics resource is associated with possibility of continuous control of temperature fields of printed circuit boards. This problem can be solved only with the use of a large number of temperature sensors. It raises the problem of connecting the measuring elements and recording equipment. Several methods with their own advantages and disadvantages are proposed. One of the implemented and patented methods is using a set of resistive diode sensors installed in series on a threewire line. The temperature sensors are pairs of counter - connected diodes with a sequential survey when applying sawtooth voltage. The system is simple and easy to implement, but its main drawback is the method of determining the temperature by measuring the amplitude of the total reverse currents of diode pairs. It determines the large measurement errors, especially in the temperature range less than 20°C. The article deals with a similar design of a three-wire circuit, but with a fundamentally different approach to temperature measurement. The temperature sensor here is not diode pairs, but thermistors with a well-known dependence of resistance on temperature and high accuracy, and diode pairs record only the moment of coincidence of the sawtooth voltage with the voltage on the thermistors. This approach allows using mathematical methods of signal processing to accurately determine the voltage drop on the thermistor, and this ensures the accuracy of the resistance/temperature and the expansion of the temperature range. Given the fact that thermistors are increasingly used to measure temperature, simplifying their inclusion in a large number will allow to register the temperature field of electronic units, which is extremely important for spacecraft. The proposed version of a three-wire circuit for connecting temperature sensors at several points was tested experimentally, including at negative temperatures.
Thermistor, counter-connected diodes, three-wire temperature measurement circuit.
Короткий адрес: https://sciup.org/148321693
IDR: 148321693 | DOI: 10.31772/2587-6066-2019-20-3-334-343
Список литературы Measurement of temperature distribution using a three-wire system of sensors based on thermistors
- Derevyanko V. A., Latypov A. F. [Recovery of the temperature distribution of the medium in the twodimensional domain by the tomographic method from the result of measurements of the electrical resistance of oriented conductors]. Vychislitel'nye tekhnologii. 2018, No. 23 (3), P. 31–38 (In Russ.).
- Vasil’ev E. N., Derevyanko V. A. [Analysis of the effectiveness of the use of thermoelectric modules in cooling systems of radioelements]. Vestnik SibSAU. 2013, No. 4 (50), P. 9–13 (In Russ.).
- Korneeva A., Shaidurov V. Computational algorithms for analysis of data from thin-film thermoresistors on a radio-electronic printed circuit board. Conference Proceeding of American Institute of Phisics. 2016, No. 1759, Art. 020048.
- Korneeva A. A., Shaidurov V. V. [Numerical analysis of temperature data from film resistors of electronic board]. Vychislitel'nye tekhnologii. 2017, No. 22 (3), P. 32–44 (In Russ.).
- Shaidurov V. V., Korneeva A. A. [Numerical method for the analysis of non-local data from film thermistors of electronic boards]. Sibirskie elektronnye matematicheskie izvestiya. 2017, No. 14, P. 914–926 (In Russ.).
- Lineveg F. Izmerenie temperatury v tekhnike [Temperature measurement in the technique]. Moscow, Metallurgiya Publ., 1980, P. 320–346 (In Russ.).
- GOST 6651–2009. Gosudarstvennaya sistema obespecheniya edinstva izmereniy (GSI). Termopreobrazovateli soprotivleniya iz platiny, medi i nikelya. Obshchie tekhnicheskie trebovaniya i metody ispytaniy [State system for ensuring the uniformity of measurements. Platinum, copper and nickel resistive temperature transducers. General technical requirements and test methods]. Moscow, Standartinform Publ., 2011.
- Temperature measuring conductor network – uses thermoelectric effect at crossing points of conducting strips of two different materials. Patent France FR2315689, G01К7/02, 1977.
- Bashirova A. G., Evdokimov Yu. K., Kraev V. V., Natfulov F. Kh. Ustroystvo izmereniya prostranstvennogo raspredeleniya temperatury [A device for measuring the spatial distribution of temperature]. Patent RU2079822 C1. 1994.
- Wood S. D., Mangum B. W., Fillben J. J., Tillett S. B. An investigation of the stability of thermistors. J. Research of the National Bureau of Standarts. 1978, No. 83 (3), P. 247–263.
- Precise and reliable measurement, optimization and management. Germany: Heraeus Sensor Technology, 2017, 38 p.
- Yadevich A. I. [Platinum thin film sensor for resistance thermometers]. Mir izmereniy. 2010, No. 3, P. 52–55 (In Russ.).
- Neiman L. R., Demirchyan K. S. Teoreticheskie osnovy elektrotekhniki [Theoretical foundations of electrical engineering]. Vol. 1. Leningrad, Energoizdat, 1981, 536 p.
- Bronshtein I. N., Semendyaev K. A. Spravochnik po matematike dlya inzhenerov i uchashchikhsya VTUZov [Handbook of mathematics for engineers and students of high schools]. Moscow, Nauka Publ., 1986, P. 464–465.
- Korn G., Korn T. Spravochnik po matematike dlya nauchnykh rabotnikov i inzhenerov [Mathematical handbook for scientists and engineers]. Moscow, Nauka Publ., 1973, 684 p.
