Calibration of thermocouples for low temperature applications

Singh, Devendrá; Kumar, Praveen; Prasad, Sumer Chand

doi:10.1109/icraie.2016.7939485

Cited by 8 publications

(7 citation statements)

References 4 publications

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“…Devendra Singh Kfurther used thermocouple wire-type tool as obtained from low operating costs but having a high accuracy. This study observed the variation of the oil temperature value [23].H. On the other hand, another research project carried out by M. Hashemian employing thermocouples on temperature measurements on air media [24].…”

Section: Introductionmentioning

confidence: 81%

Nine Channels Temperature Data Logger Design for Dry Sterilizer Calibration

Syaifudin

Titisari

Kumar³

2022

j.teknokes

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In the process of sterilizing medical devices, a sterilizer that is able to produce an accurate and even temperature is needed. If the resulting temperature is not in accordance with the regulated temperature and is not evenly distributed, it will be fatal/damage to the material sterilized. Periodic calibration should be applied to the sterilizer to monitor its function. Based on the research that has been done, no one has done research on making a temperature data logger with 9 channels to calibrate the sterilizer. This study aims to design a temperature measuring device with 9 sensors that can measure simultaneously, so that the accuracy and the distribution of the temperature of a sterlisator can be obtained. This tool used a K thermocouple-type temperature sensor which will detect the temperature and further enters the analog signal conditioning circuit. This then enters the ATMegga 2560 which has been programmed and processed in such a way, leading to the display of the temperature on the 4x20 character LCD. Temperature measurement data will be further stored to SD Card every 10 seconds in the form of a txt file. Tests were carried out on sterilizers, continued by comparison with the Madgetech OctTemp2000 data logger. Based on the measurement and comparison data, the average error was obtained at a temperature of 50ºC with the smallest error value of 0.7% and the largest error value of 3.9%. At a temperature of 100ºC, the smallest error value is 1.6% and the largest error value is 10.5%. Furthermore, at a temperature of 120ºC, the smallest error value is 0.0% and the largest error value is 8.5%. The module resulting from this research is stable in response to temperature by looking at the very small uncertainty value. This research can be further used to help analyze the temperature distribution in a sterilizer. With these measurement results, this study is considered having a fairly high error value at several measurement points.

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Section: Introductionmentioning

confidence: 81%

Nine Channels Temperature Data Logger Design for Dry Sterilizer Calibration

Syaifudin

Titisari

Kumar³

2022

j.teknokes

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“…The advantages of this tool was that it already used 5 (five) sensors and data storage using EEPROM. Meanwhile, the lack of the study was the same as previous researchers, namely the absence of wireless technology, and the temperature examined was not the temperature needed for bacterial incubation which is 35°C and 37°C [16]. In another study, a simple and low-cost humidity/temperature calibration system with a data logger was designed by Yasser A. Abdelaziz, with the temperature range started from 5°C to 50°C and from 50% RH to 98% RH for humidity.…”

Section: Introductionmentioning

confidence: 99%

Eight Channel Temperature Monitoring using Thermocouple Sensors (type K) Based on Internet of Thing using ThinkSpeak Platform

Prastyadi

Utomo

Ariswati

et al. 2023

j.electron.electromedical.eng.med.inform

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A laboratory incubator is a device used to incubate a breed. a very important condition in the procedure Incubator is the optimal temperature conditions for microorganisms to grow. The incubator is equipped with a temperature controller so that the temperature can be adjusted according to the breed to be raised. Incubators use an oven like dry heat. The purpose of this study was to test and analyze the accuracy of the thermocouple sensor with incubator media in a laboratory incubator calibrator. The main design method uses the 8 MAX 6675 module, the 8 K type Thermocouple module, Arduino Mega, and SD Card data storage. Temperature measurements were measured with a Type K thermocouple sensor. The thermocouple sensor has 8 channels which function to measure the temperature at each camber point of the incubator. The temperature will be stored on the SD card for data analysis and the data can be processed in graphical form. Benchmarking is done using a temperature data logger. This is done so that the design results are below the standard comparison tool. The measurement results on the module compared to the comparison tool obtained the largest error value, namely 3.98%, namely on channel T6 at 35°C with ordinary incubator media and the smallest error on ordinary incubator media at point T6 at 37°C, which is 0.06 % and at 35 C the temperature of the incubator fan has the largest error of 2.98% and the smallest error of 0.86%. the module can perform well by testing the comparison tool at every point

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“…Calibration is the process of comparing results and the field data and making proper adjustments so that both results are recorded [13]. Calibration is also defined as a technique of enhancing the accuracy by reducing the error in the instrument's reading [14]. Another definition refers calibration as an activity to determine the conventional truth of the value of the measuring instruments and measuring materials.…”

Section: Introductionmentioning

confidence: 99%

Design of Wet Media Digital Thermometer Calibrator Based on ATmega328p

Titisari¹,

Syaifudin²,

Prabowo³

2022

j.teknokes

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Temperature calibration is an activity that formed the relationship between values indicated by a measuring instrument or measuring system with the value - the value relating to the temperature scale that measured under certain conditions. A clinical thermometer is a device that doctors use to measure the temperature inside a patient's body. In the field of calibration, the suitability of medical device readings with the permissible standard values (tolerance values) is very necessary so that the readings are kept accurate. The purpose of this research is to make a digital wet media thermometer calibrator based on the ATmega32p to monitor the performance of the thermometer with a temperature setting of 35 °C – 40 °C in order to maintain its accuracy. The design of this calibrator consists of a wet heater circuit using a DS18B20 temperature sensor which is processed by a minimum ATmega328p system, then will be displayed on a 2x16 LCD. This tool is made to make it easier to calibrate the thermometer so that its accuracy is maintained. Thermometer calibration is done by comparing the module with a calibrated standard measuring instrument. The measurement of the instrument against the setting temperature has the smallest error of 0% and the largest of 0.25%. Meanwhile, the measurement of the instrument against a standard thermometer (which has been calibrated) has the smallest error value of 0% and the largest of -1.17%.

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Calibration of thermocouples for low temperature applications

Cited by 8 publications

References 4 publications

Nine Channels Temperature Data Logger Design for Dry Sterilizer Calibration

Nine Channels Temperature Data Logger Design for Dry Sterilizer Calibration

Eight Channel Temperature Monitoring using Thermocouple Sensors (type K) Based on Internet of Thing using ThinkSpeak Platform

Design of Wet Media Digital Thermometer Calibrator Based on ATmega328p

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