The Research of Measurement Error for Smart Temperature Sensors with Wireless Interface

The high-precision smart sensor with the wireless interface is developed for contact temperature measurement (STS). STS constructive technology solution for surface mounting of STS on pipelines is proposed for determination of temperature of the liquid proceeding in them. For ensuring reliable thermal contact was developed the way of the STS installation on pipelines in a sleeve by contact-capacitor welding. The technique was developed, modeling of a temperature profile in a system sensor to liquid was conducted. Results of modeling are confirmed with experimental studies. The technique and a hardware-software measuring system was developed for conducting an experiment. Experimental studies were conducted for sensors, that installed on pipelines of heating systems for the purpose of determination of temperature of the heat carrier. The obtained data are used in a technique of definition of the thermal energy consumed by each apartment in apartment houses, - that was developed by the authors of this article. As a result of researches, was found that methodical error of measurements of the proposed constructive-technology solution does not exceed the 0.01 °C. This correlate to absolute measurement error of STS, according to specifications. In this way expediency of usage with proposed constructive and technological solution of STS for high precision measurement of temperature is confirmed.