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Paddy Rice Moisture Content Meter
Wirot Ponglangka 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
The principle of the electrical capacitance properties to measure paddy rice moisture content is presented in this paper. The aim of this research is to design a low-cost paddy rice moisture content meter. Paddy rice was packed in a 600 cm3 cylindrical plastic container with the diameter of 9 centimeters and the length of 10 centimeters. The integrated circuit ICL8038 was applied to generate the frequency signal. After that, the capacitor in ICL8038 circuit was replaced by the cylindrical plastic container. Paddy rice capacitance was computed and applied to model the moisture content equation by using the second-order polynomial regression. The microcontroller (ATmega1280) was applied to calculate the moisture content and the calculation was demonstrated on 20 × 4 LCD display. Weight of each sample of paddy rice was 354 grams. The results of moisture content equation evaluated were 97.91% accurate. The examination results showed paddy rice moisture content was 97.83% accurate. The moisture content measurement range was 6% to 22% wet basis.
Silk Dryer Oven for a Community with Close-Loop Control
Nitipong Somchaiwong,Wirot Ponglangka 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
The silkworm rearing is an unearned income occupation of agriculturists in Thailand who’re the mulberry cultivation and Silkworm rearing. Problem of the filature process is the caterpillar piercing the cocoon after the life time of it’s over. In this paper, we propose an automatic of the Silk dryer oven for a community with close-loop control aims to improve the efficiencies of silk productivity and increase the silk productions. The Silk dryer oven has the size of 4 cubic meters capable for drying the silkworm approximate to 40 kilograms per hour. Liquefied Natural Gas (LPG) is used to the energy for drying process. The system controlled utilized microprocessor with programming used to control the timer, the temperature and the moistures of the Silkworm drying process. There are two electronic igniter circuit used for gas ignition, two-infrared burners and two exhaustion fans for heat dissipation with the power consumption is 186.5 watts. From the results, the performance of silk dryer oven has the energy consumption 1.37 kilograms of LPG and 0.5 kilowatts per hour of an electrical current. The maximum temperature for the Silk dryer oven is 84 degree celsius. The moistures of dried silkworm decreased to 13.48% from the silkworm is 27 kilograms at 2 hour. Resulting of performance testing is shown the reel ability, the tenacity and the elongation are still within the standard