Development of microcontroller-based microwave system to measure solid content of hevea rubber latex

Mohammadi, Ahmad; Khalid, Kaida; Bafti, Payam Shafiei; Homaiee, M.

doi:10.1016/j.measurement.2011.10.007

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…Alat ini juga dilengkapi dengan suatu pemancar yang digunakan untuk mengefektifkan sistem pencatatan dan pendataan yang nantinya akan dioperasikan oleh sebuah komputer yang secara langsung dapat menampilkan berapa besar biaya yang harus ditanggung oleh setiap pelanggan Aplikasi Mikrokontroler chip 8-bit PICAXE AXE-08msebagai kontrol emulator pada panel photovoltaik (PV)dilakukan Lu dan Nguyen [8]. Mohammadidkk [9]menjelaskanperkembanganmikrokontroler yang digunakan untuk operator mudah dan murah dengan instrumen gelombang mikro yang akurat untuk menentukan kadar padatan total (TSC) atau kadar air(MC) darikaretlateks Hevea. Mikrokontroler banyak digunakan untuk mengontrol suatu sistem kerja rangkaian sehingga memudahkan operator dalam menjalankan tugasnya dan dapat memantau kejadian dalam sistem secara langsung dan realtime.…”

Section: Gambar 32 Grafik Hubungan Perubahan Sensor Arus Acs712 [𝟏]unclassified

Pembuatan Alat Ukur Resistivitas Dengan Sistem Sensor Tegangan Dan Sensor Arus Acs712 Berbasis Mikrokontroller Arduino Nano

Marbun

Moh²

2021

JMKN

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Penelitian tentang pembuatan alat ukur resistivitas yang berbasis mikro kontroler arduino dengan menggunakan dua sensor yaitu ACS 712 5A dan sensor tegangan, alat telah berhasil di kalibrasi dengan resisitivitymeter OYO 2115A MCoHM sebagai reverensi.kedua alat digunakan mengukur resistor sebesar 10 Ohm antara P1 , P2dan antara C1 dan C2 dipasang resistor geser (Rheostat)sebesar 500 Ohm, dilanjutkan dengan analisis data untuk menentukan standart deviasi resistivitymeter.Hasilnilai standart deviasi dari pengukuran OYO sebesar10.135±0.002 dan resistivitymeter yang dibuat sebesar 9.49±0.023, selain itu dibandingkan dengan resistivitymeter naniura NRD 300 HFstandart deviasinya 14.7±2.69, dilakukan juga pengujian di lapangan dengan tiga konvigurasi Schlumberger dengan panjang AB/2 74 meter,konvigurasi Wenner dengan a = 5 meter dan 10 meter, dilanjutkan konvigurasiDipole-dipole dengan a = 5 meter. Data hasil pengukuran baik menunjukan tren yang sama mendekati resistivitymeter OYO, pada konvigurasi Schlumberger hasilnya sangat baik.

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Section: Gambar 32 Grafik Hubungan Perubahan Sensor Arus Acs712 [𝟏]unclassified

Pembuatan Alat Ukur Resistivitas Dengan Sistem Sensor Tegangan Dan Sensor Arus Acs712 Berbasis Mikrokontroller Arduino Nano

Marbun

Moh²

2021

JMKN

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“…There are several applications reported that used the microwave technique to sense grain MC, such as a microwave microstrip ring resonator for single wheat grain (Abegaonkar et al, 1999) as well as a prototype moisture meter using a microwave transceiver (Kim et al, 2002), multi-layer microstrip moisture sensor (Jafari et al, 2010) and cylindrical slot antennas for rice grain quality . Besides, microwave technique was also applied in MC determination for oil palm fruit (You et al, 2010a), soybean (Shrestha et al, 2014), tuber (Zainuddin et al, 2013), clay granule (Mextorf et al, 2012), latex (Ansarudin et al, 2012;Mohammadi et al, 2012) and mortar (Jusoh et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Rice Grain Moisture Determination Using Microstrip Wide-Ring and Microstrip Coupled-Line Sensors

Mun¹,

You²,

Dimon³

2015

American Journal of Applied Sciences

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Determining the Moisture Content (MC) inside rice grain is an important element for grain processesing such as harvesting, storage, quality control and transportation. A microstrip wide-ring sensor and a microstrip coupled-line sensor with low insertion loss were developed to operate at relatively low frequency to determine the MC and relative complex permittivity of rice grain. The complex permittivity for rice grain with various moisture levels was measured by the proposed sensors based on the resonance technique. Calibration equations for measurement of grain MC were obtained and validated with white rice for MC ranging from 10 to 28% wet basis. The coupled-line sensor showed better sensitivity to moisture measurement as compared to the wide-ring sensor. For a 1% change in MC, the changes of resonant frequency for the wide-ring and coupled-line sensors were 4.36 and 10.69 MHz respectively. Meanwhile, the wide-ring sensor had a higher accuracy in MC prediction than the coupled-line sensor. The average errors in moisture prediction for wide-ring and coupled-line sensors were 0.85 and 1.30% respectively.

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“…So, using microcontrollers in the measurement system become a standard procedure. Impedance measurement, pulse transmitting, microwave, and harmonics measurement can be counted as application examples [3,4,5,6]. In this study, in order to analyze harmonics of single phase city grid, microcontroller based analyzer has been designed.…”

Section: Introductionmentioning

confidence: 99%

Harmonic simulation and a cheap instrument design with pic microcontroller

KOŞALAY¹

2015

Communications Faculty of Science University of Ankara

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In this study, harmonics analyzer circuit based on PIC 18F4620 microcontroller has been designed. After implementation of simulation of the circuit on Proteus program, the circuit has been printed on card. In the implemented circuit, data has been processed using PIC 18F4620 microcontroller and at the same time by using microcontroller through RS-232 data bus the data has been transferred to Matlab. By analyzing data sent to matlab, the circuit has been verified.By taking Fast Fourier Transform (FFT) of sample signal applied to analog-digital converter input of PIC 18F4620 and using programs placed inside microcontroller, the implemented system helps to analyze the frequency spectrum. Due to the availability and low price of the material used, the applicability of the circuit has increased. Beside its low budget, the used circuit has shown good performance.

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Development of microcontroller-based microwave system to measure solid content of hevea rubber latex

Cited by 9 publications

References 3 publications

Pembuatan Alat Ukur Resistivitas Dengan Sistem Sensor Tegangan Dan Sensor Arus Acs712 Berbasis Mikrokontroller Arduino Nano

Pembuatan Alat Ukur Resistivitas Dengan Sistem Sensor Tegangan Dan Sensor Arus Acs712 Berbasis Mikrokontroller Arduino Nano

Rice Grain Moisture Determination Using Microstrip Wide-Ring and Microstrip Coupled-Line Sensors

Harmonic simulation and a cheap instrument design with pic microcontroller

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