Non-invasive moisture content measurement system based on the ESP8266 microcontroller

Abstract

Moisture content in the process of drying is often unknown when carrying out the drying process, especially the fluidized dryer. A lot of experimental designs are needed when observing the drying phenomenon more deeply. It is because to stop and repeat drying process from the beginning again when the sample is taken to test its moisture content needed more experiments. Therefore, this paper presents development of a non-intrusive moisture measurement system prepared for fluidization type dryers. The method used in to conduct this research consists of (i) structural design analysis and (ii) functional (mechanical and electrical systems) and (iii) simple testing of the water content measurement system of constructed material. Test parameters observed include errors in measuring and fluctuating sensor signals against vibration applied to the weighing system. The results showed that non-intrusive moisture content measurement system for fluidized dryers based on the ESP8266 microcontroller had been successfully developed and worked normally. The measurement system has been calibrated with a coefficient of determination (R2) close to one. Measurement error resulting from the effect of vibration on this system shows a very satisfactory value of 6.89%.

Performance Tests of Loadcell as Real-Time Moisture Content Sensor: Case Study Moringa Oleifera Leaves Drying

“…Figure 10 shows a clearer comparison of the measurements of the two methods. The value of the coefficient of determination (R 2 ) is 0.9815 and the MAE value calculated based on equation ( 4) gives an MAE result of 3.78% which is better than the error obtained in the study of Sitorus et al [21] .…”

“…with a variable measurement of airflow rate and pressure changes in the spouted bed dryer [20] . Sitorus et al (2020) measured the moisture content in real-time in a fluidization type dryer using a weight measurement approach [21] . Weight measurement is carried out by connecting a weighing container in the drying chamber and connected by an arm to the loadcell sensor outside the chamber.…”

Oscillation effect dataset on the measurement accuracy of load-cell sensor applied to the weigh basket

“…The state of the art research has been conducted, in particular, using a fluidized mechanical dryer type on the non-destructive measurement of the moisture content of a dried product [1] . One of the physical characteristics can be determined by measuring the weight of the dried material in the dryer tube [ 2 , 3 ].…”

Performance Evaluation of Pre-Processing and Pre-Treatment Algorithm for Near-Infrared Spectroscopy Signals: Case Study pH of Intact Mango “Arumanis”

“…However, pH decisions are usually carried out destructively in the laboratory, which is not suitable for fresh handling of the "Arumanis" mango. In addition, the basic thing to avoid over and under the design of kits for detecting the physical and chemical parameters of agricultural products is to perform a series of experiments with various methods that have the potential to produce the best technique [3]. As a result, a non-destructive approach for forecasting the pH of "Arumanis" mangoes is required.…”