Self-Calibrating Enabled Low Cost, Two Channel Type K Thermocouple Interface for Microcontrollers

Shaker, Hesham H.; Saleh, Alaa; Ali, Azza H.; Elaziz, M. Abd

doi:10.21608/ajnsa.2018.12391

Cited by 3 publications

(2 citation statements)

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“…The results were displayed on an i2C LCD, presenting the values in degrees and percentages, and were also showcased in graphical form on Thingspeak. The temperature of the mattress and the humidity in the incubator served as the dependent factors, while data from the Type K Thermocouple sensor and the DHT22 humidity sensor served as the independent variables [25]. The comparison tool used in this study was the Fluke INCU II.…”

Section: Introductionmentioning

confidence: 99%

Design of Incu Analyzer for IoT-Based Baby Incubator Calibration

Maulani,

Syaifudin,

Maghfiroh

et al. 2024

j.teknokes

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An incubator analyzer, serving as a calibration tool, is utilized to measure diverse parameters such as temperature, mattress temperature, humidity, airflow, and noise in infant incubators. The present study focuses on the development of the Design Incubator Analyzer for IoT (Mattress Temperature and Humidity) with LCD and ThingSpeak display, specifically designed for calibrating baby incubators. The primary objective is to design and develop an Incubator Analyzer as a calibration device for assessing various parameters in infant incubators, encompassing temperature, mattress temperature, humidity, airflow, and noise. The design of this calibration device incorporates a Thermocouple Type-K sensor for baby incubator mattress temperature parameters, a DHT22 sensor for humidity parameters, and an ESP32 microcontroller. The ESP32 processes data from the Thermocouple Type-K and DHT22 sensors to generate values for mattress temperature (TM) and humidity (RH), which are then displayed on LCD and ThingSpeak displays. The device underwent rigorous testing against an established measuring device, the INCU II. In the study, the TM parameter or mattress temperature exhibited the smallest error of -0.0140% at 35°C and the largest error of 0.0584% at 36°C. Concerning the humidity parameter, the largest error was 0.0570% at 32°C, while the smallest error was 0.0207% at 35°C. Overall, the Incubator Analyzer Design for IoT-Based Baby Incubator Calibration device, or IoT-based Incubator Analyzer, demonstrates potential usability following the planning and execution phases, including a thorough review of existing literature. To enhance user experience during the calibration process, an IoT system was developed for data transmission over Wi-Fi, presenting results on the ThingSpeak platform in real-time

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Section: Introductionmentioning

confidence: 99%

Design of Incu Analyzer for IoT-Based Baby Incubator Calibration

Maulani,

Syaifudin,

Maghfiroh

et al. 2024

j.teknokes

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“…In the study of Self-Calibrating Enabled Low Cost, Two Channel Type K Thermocouple Interface for Microcontrollers by Hesham H. Shaker, A.A. Saleh, Azza H. Ali, and M. Abd Elaziz researched automatic calibration on 2 channel type K thermocouple sensors which were powered by LM358 IC. IC LM358 is used to implement two differential amplifiers with a gain factor equivalent to 200 (<122 to guarantee more accuracy) [12]. In the research of Devendra Singh, Sumer Chand Prasad, and Pravin Kumar with the title Calibration of Thermocouples for Low-Temperature Applications on thermocouple calibration for lowtemperature applications.…”

Section: Introductionmentioning

confidence: 99%

Water Bath Calibration Device with Data Storage Using Six Thermocouple Sensor

Kusumawardani

Setioningsih

Titisari

2020

j.electron.electromedical.eng.med.inform

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Uneven distribution of temperature in the chamber water bath can cause the temperature conditions in the chamber are not the same. Temperature, humidity, atmospheric pressure, and dust particles are the main factors which adversely affect the accuracy of water bath’s temperature. Therefore, the purpose of this study is to design a calibration device for water bath with number of channel 6. In this study the system can detect temperatures at each chamber point. The K-type Thermocouple sensor is used to detect the temperature at each chamber point with the help of the MAX6675 module as a signal conditioning amplifier. The sensor readings will be displayed on a Personal Computer using a USB cable, the sensor readings can be stored on a Personal Computer in the form of a TXT so that data can be reprocessed using Microsoft Excel for further calibration purposes. This study aims to facilitate the calibration process and the processing of calibration data. The results of digital measurements obtained a temperature error value of 40 ° C channel 1 1,4 %, channel 2 1.8%, channel 3 0.4%, channel 4 0.2%, channel 5 0.2% and channel 6 0.2%.Temperature 50 ° C channel 1 2.25%, channel 22.26%, channel 3 2.00%, channel 4 2.44%, channel 5 2% and channel 6 1.6%. S.uhu 60 ° C channel 1 0.3%, channel 20.6%, channel 3 0.5%, channel 4 1.5%, channel 5 2% and channel 6 1.8%. Based on the test results, this module has the lowest error of 0.2% and the highest error of 2.44%. The results of this research can be implemented as a Water Bath calibration tool to maintain the temperature stability of the instrument

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