Investigation of noncontact fast-scanning internal-temperature measurement using a thermopile-infrared point detector

2021 ◽  
Author(s):  
Masaki Hisaka
Keyword(s):  
Temperature Measurement ◽  
Internal Temperature ◽  
Point Detector

Internal Temperature Measurement of Electronic Components

2015 ◽  
pp. 165-184
Author(s):  
Eric Joubert ◽  
Olivier Latry ◽  
Pascal Dherbecourt ◽  
Maxime Fontaine ◽  
Christian Gautier ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Internal Temperature ◽  
Electronic Components

Cold Chain Logistics Temperature Monitoring System Based on Internet of Things Technology

2013 ◽  
Vol 416-417 ◽  
pp. 1969-1973 ◽  
Author(s):  
Li Zhu Wu ◽  
Yu Zhao
Keyword(s):  
Food Safety ◽  
Internet Of Things ◽  
Temperature Measurement ◽  
Safety Monitoring ◽  
Temperature Monitoring ◽  
Cold Chain ◽  
Internal Temperature ◽  
Whole Process ◽  
Refrigerated Transport ◽  
Internet Of Things Technology

This thesis is based on Internet of Things technology to study the internal temperature of the refrigerated transport vehicles, combined with the knowledge of RFID, temperature measurement, GPRS, and the formation of a real-time temperature monitoring the whole process of the cold chain logistics for food safety monitoring and accountability to provide a reliable technical support.

scholarly journals Use of the MLX 90164 sensor and the ThingSpeak platform for internet of things-based animal body temperature check

2021 ◽  
Vol 5 (2) ◽  
pp. 35-36
Author(s):  
Ridi Arif ◽  
Okta Irviana Muminin ◽  
Nenis Rahma Wulandari ◽  
Koekoeh Santoso ◽  
Dhani S. Wibawa
Keyword(s):  
Body Temperature ◽  
Internet Of Things ◽  
Ambient Temperature ◽  
Temperature Measurement ◽  
Temperature Difference ◽  
Room Temperature ◽  
Internal Temperature ◽  
Temperature Estimation ◽  
Average Temperature ◽  
Measurement Results

The MLX 90614 sensor is an IR sensor used to measure temperature without contact. This sensor can measure the object's temperature and ambient temperature in the range of -40 oC – 125 oC. These sensors are widely used in areas such as room temperature measurement, machine temperature, ambient temperature, and body temperature. The MLX 90614 sensor is not yet fully usable directly to perform temperature measurements due to the program's simple defaults so that the measurement results are inaccurate. Therefore, optimization is needed to increase the precision value of the body's internal temperature estimation using this sensor. The method carried out in this study used 6 experimental sheep. Temperature checks are performed through a contact thermometer and compared to non-contact checks by MLX 90614 sensors. Results showed the average temperature of the contact thermometer was 39.28±0.09 oC while the MLX sensor yield was 35.78±1.38 oC. The average temperature difference was 3.5±1.48 oC. The results showed that the temperature difference correction factor needs to be included in the script code when running MLX 90614 sensor. The results of temperature checks by the sensor can be sent directly in real time to the ThingSpeak platform so that the results can be stored and accessed in different places easily. The use of MLX 90614 sensor combined with IoT concept using ThingSpeak can facilitate the process of non-contact body temperature check, and also make the data can be accessed dan stored easily.

scholarly journals The Importance of Optical Fibres for Internal Temperature Sensing in Lithium-ion Batteries during Operation

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3617
Author(s):  
Markus S. Wahl ◽  
Lena Spitthoff ◽  
Harald I. Muri ◽  
Asanthi Jinasena ◽  
Odne S. Burheim ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Lithium Ion Batteries ◽  
Electromagnetic Interference ◽  
Lithium Ion ◽  
Large Temperature ◽  
Fibre Bragg Grating ◽  
Internal Temperature ◽  
Non Invasive ◽  
Discharge Rates ◽  
Charge Discharge

Lithium-ion batteries (LiBs) are widely used as energy storage systems (ESSs). The biggest challenge they face is retaining intrinsic health under all conditions, and understanding internal thermal behaviour is crucial to this. The key concern is the potentially large temperature differences at high charge/discharge rates. Excess heat created during charge/discharge will accelerate irreversible aging, eventually leading to failure. As a consequence, it is important to keep battery states within their safe operating range, which is determined by voltage, temperature, and current windows. Due to the chemically aggressive and electrically noisy environment, internal temperature measurement is difficult. As a result, non-invasive sensors must be physically stable, electromagnetic interference-resistant, and chemically inert. These characteristics are provided by fibre Bragg grating (FBG) sensors, which are also multiplexable. This review article discusses the thermal problems that arise during LiB use, as well as their significance in terms of LiB durability and protection. FBG-based sensors are described as a technology, with emphasis on their importance for direct temperature measurement within the LiB cell.

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