Differences in temperature measurement by commercial room temperature sensors: Effects of room cooling system, loads, sensor type and position

Shinoda, Jun; Mylonas, Angelos; Kazanci, Ongun Berk; Tanabe, Shin Ichi; Olesen, Bjarne W.

doi:10.1016/j.enbuild.2020.110630

Cited by 14 publications

(6 citation statements)

References 24 publications

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“…Moreover, a detailed quantitative experimental study of temperatures at seven different places in a simulated office environment (four different climate modes) showed that placing different commercial thermometers in the same location could result in temperature differences of 1 °C despite the consistent environment. Additionally, the same thermometer's readings could vary by up to 2 °C at different room locations for the same stationary conditions (that the authors refer to as climate modes) [3].…”

Section: Reliability Of Air Temperature Measurementmentioning

confidence: 99%

“…Sensor manufacturers do not like comparisons of their products with those of their competitors, as only one product comes out on top. To avoid their displeasure (or even potential legal issues), either any references to particular products are removed from the experiment's description (e.g., branding of thermometers in photographs [3]), or products from only one manufacturer are compared [7], or the data are presented with the details of how they were obtained but without a definitive judgement [9,10,12,13]. The latter approach was taken for this study, allowing the reader to make their own conclusion according to their use case.…”

Section: Reporter's Liabilitymentioning

confidence: 99%

“…The global market size for these sensors was estimated at 6.3 billion USD in 2020 with a projected annual growth of 4.8% to 2027 [1]. For many applications, using a single temperature sensor is sufficient, but sometimes a group of sensors is required to optimise, for example, the design of a refrigerator [2] or room ventilation [3]. We came across the need to develop an accurate air temperature distribution measurement network in order to verify operation of an ultrasonic oscillating temperature sensor (UOTS) that we are developing to measure aggregate temperatures in dwellings.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating Suitability of a DS18B20 Temperature Sensor for Use in an Accurate Air Temperature Distribution Measurement Network

Kalashnikov¹,

Elyounsi²

2021

The 8th International Electronic Conference on Sensors and Applications

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We analysed literature data and our experimental results to determine why the readings of different temperature sensors might be notably different in air despite being placed in close proximity. We attributed these differences to two factors—unrestricted air movements and differences in the sensors’ response times. After elimination of these factors, the temperature readings of Pt100 and DS18B20 sensors exhibited an excellent agreement which, together with the convenient networking features provided by the DS18B20 sensors, confirmed their suitability for our use case.

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Section: Reliability Of Air Temperature Measurementmentioning

confidence: 99%

Section: Reporter's Liabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluating Suitability of a DS18B20 Temperature Sensor for Use in an Accurate Air Temperature Distribution Measurement Network

Kalashnikov¹,

Elyounsi²

2021

The 8th International Electronic Conference on Sensors and Applications

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“…Furthermore, the similar structures, connected with the control of the DC motor, can be found in [ 23 , 24 ] or by using the Extended State Observer (ESO) for different objects in [ 25 , 26 , 27 ]. In these cases, special attention has been paid to the fact that measurement issues play a large role in the context of proper sensor selection or its location [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. This article is no different; sensors are important elements which play an important role in the context of the new control law.…”

Section: Introductionmentioning

confidence: 99%

A Sensor-Aided System for Physical Perfect Control Applications in the Continuous-Time Domain

Majewski

Hunek

Pawuś

et al. 2023

Sensors

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The recently introduced continuous-time perfect control algorithm has revealed a great potential in terms of the maximum-speed and maximum-accuracy behaviors. However, the discussed inverse model-originated control strategy is associated with considerable energy consumption, which has exceeded a technological limitation in a number of industrial cases. In order to prevent such an important drawback, several solutions could be considered. Therefore, an innovative perfect control scheme devoted to the multivariable real-life objects is investigated in this paper. Henceforth, the new IMC-related approach, strongly supported by the vital sensor-aided system, can successfully be employed in every real-time engineering task, where the precision of conducted processes plays an important role. Theoretical and practical examples strictly confirm the big implementation potential of the new established method over existing ones. It has been seen that the new perfect control algorithm outperforms the classical control law in the form of LQR (considered in two separate ways), which is clearly manifested by almost all simulation examples. For instance, in the case of the multi-tank system, the performance indices ISE, RT, and MOE for LQR without an integration action have been equal to 2.431, 2.4×102, and 3.655×10−6, respectively, whilst the respective values 1.638, 1.58×102, and 1.514×10−7 have been received for the proposed approach.

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“…They were able to obtain the temperature and RH from changes in center frequency shift and line width caused by resonance. Shinoda et al [12] conducted a study to investigate variations in temperature measurements between nine wireless temperature sensors and two traditional wired room temperature sensors that are commercially available. They also analyzed how indoor cooling systems, load, sensor types, and locations affect these measurements.…”

Section: Introductionmentioning

confidence: 99%

The Application of a Self-Made Integrated Three-in-One Microsensor and Commercially Available Wind Speed Sensor to the Cold Air Pipe of the Heating, Ventilation, and Air Conditioning in a Factory for Real-Time Wireless Measurement

Lee

Shieh

Chen

et al. 2023

Sensors

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In this study, the integrated three-in-one (temperature, humidity, and wind speed) microsensor was made through the technology of the Micro-electro-mechanical Systems (MEMS) to measure three important physical quantities of the internal environment of the cold air pipe of the Heating, Ventilation and Air Conditioning (HVAC) in the factory, plan the installation positions of the integrated three-in-one microsensor and commercially available wind speed sensor required by the internal environment of the cold air pipe, and conduct the actual 310-h long term test and comparison. In the experiment, it was also observed that the self-made micro wind speed sensor had higher stability compared to the commercially available wind speed sensor (FS7.0.1L.195). The self-made micro wind speed sensor has a variation range of ±200 mm/s, while the commercially available wind speed sensor a variation range of ±1000 mm/s. The commercially available wind speed sensor (FS7.0.1L.195) can only measure the wind speed; however, the self-made integrated three-in-one microsensor can conduct real-time measurements of temperature and humidity according to the environment at that time, and use different calibration curves to know the wind speed. As a result, it is more accurate and less costly than commercially available wind speed sensors. The material cost of self-made integrated three-in-one microsensor includes chemicals, equipment usage fees, and wires. In the future, factories may install a large number of self-made integrated three-in-one microsensors in place of commercially available wind speed sensors. Through real-time wireless measurements, the self-made integrated three-in-one microsensors can achieve the control optimization of the HVAC cold air pipe’s internal environment to improve the quality of manufactured materials.

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Differences in temperature measurement by commercial room temperature sensors: Effects of room cooling system, loads, sensor type and position

Cited by 14 publications

References 24 publications

Evaluating Suitability of a DS18B20 Temperature Sensor for Use in an Accurate Air Temperature Distribution Measurement Network

Evaluating Suitability of a DS18B20 Temperature Sensor for Use in an Accurate Air Temperature Distribution Measurement Network

A Sensor-Aided System for Physical Perfect Control Applications in the Continuous-Time Domain

The Application of a Self-Made Integrated Three-in-One Microsensor and Commercially Available Wind Speed Sensor to the Cold Air Pipe of the Heating, Ventilation, and Air Conditioning in a Factory for Real-Time Wireless Measurement

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