Research of a cold end temperature compensation for thermal couple

Duan, Quansheng

doi:10.1109/ical.2009.5262789

Cited by 3 publications

(3 citation statements)

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“…The traditional measuring techniques, such as thermocouple temperature measurement (TTM) [ 8 , 9 , 10 ] and fiber temperature detection (FTD) [ 11 , 12 ], are wired methods. The high cost and complex layout of TTM limit its wide application, so TTM is always employed for sample testing.…”

Section: Introductionmentioning

confidence: 99%

Novel Concrete Temperature Monitoring Method Based on an Embedded Passive RFID Sensor Tag

Liu

Deng

et al. 2017

Sensors

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This paper firstly introduces the importance of temperature control in concrete measurement, then a passive radio frequency identification (RFID) sensor tag embedded for concrete temperature monitoring is presented. In order to reduce the influences of concrete electromagnetic parameters during the drying process, a T-type antenna is proposed to measure the concrete temperature at the required depth. The proposed RFID sensor tag is based on the EPC generation-2 ultra-high frequency (UHF) communication protocol and operates in passive mode. The temperature sensor can convert the sensor signals to corresponding digital signals without an external reference clock due to the adoption of phase-locked loop (PLL)-based architecture. Laboratory experimentation and on-site testing demonstrate that our sensor tag embedded in concrete can provide reliable communication performance in passive mode. The maximum communicating distance between reader and tag is 7 m at the operating frequency of 915 MHz and the tested results show high consistency with the results tested by a thermocouple.

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Section: Introductionmentioning

confidence: 99%

Novel Concrete Temperature Monitoring Method Based on an Embedded Passive RFID Sensor Tag

Liu

Deng

et al. 2017

Sensors

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“…Thermocouples (TCs) dominate in temperature measurements within the interval from 600°C to 1500°C [22]. However, they have a lot of sources of error: (i) electromagnetic interference [23]; (ii) data acquisition modules [24]; (iii) the reference junction [25]; (iv) nonlinearity of the conversion characteristic (CC) [22], [26]; (v) transient processes [22]; (vi) the initial deviation of CC from the nominal one (also called tolerance) at 800°C reaches 6°C [22], [26]; (vii) degradation of TC legs with operating time which leads to their longitudinal inhomogeneity [26]- [28], which is considered the biggest source of error. The latter source causes two interrelated errors: (i) the error due to drift of TC CC, which manifests itself in a stable condition of operation as a gradual change of a CC with time [28], which can reach 8°C for 1000 hours at 800°C; (ii) the error due to acquired under high temperatures during long term operation thermoelectric inhomogeneity (henceforth the error due to acquired thermoelectric inhomogeneity), which manifest itself as the dependence of the developed emf on temperature distribution along the TC legs [29].…”

Section: Introductionmentioning

confidence: 99%

“…Data acquisition systems for TC are being complicated by correction of various errors [24], [25] and implementation of auxiliary procedures [31]- [33]. This makes it difficult to determine their metrological properties.…”

Section: Introductionmentioning

confidence: 99%

Metrological Software Test for Simulating the Method of Determining the Thermocouple Error in Situ During Operation

Chen

Кочан

et al. 2018

Measurement Science Review

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The simplified metrological software test (MST) for modeling the method of determining the thermocouple (TC) error in situ during operation is considered in the paper. The interaction between the proposed MST and a temperature measuring system is also reflected in order to study the error of determining the TC error in situ during operation. The modelling studies of the random error influence of the temperature measuring system, as well as interference magnitude (both the common and normal mode noises) on the error of determining the TC error in situ during operation using the proposed MST, have been carried out. The noise and interference of the order of 5-6 μV cause the error of about 0.2-0.3°C. It is shown that high noise immunity is essential for accurate temperature measurements using TCs.

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Thermocouple with adjustable error

Кочан

Kochan

et al. 2017

2017 9th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applicati

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Research of a cold end temperature compensation for thermal couple

Cited by 3 publications

References 0 publications

Novel Concrete Temperature Monitoring Method Based on an Embedded Passive RFID Sensor Tag

Novel Concrete Temperature Monitoring Method Based on an Embedded Passive RFID Sensor Tag

Metrological Software Test for Simulating the Method of Determining the Thermocouple Error in Situ During Operation

Thermocouple with adjustable error

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