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Writing a methodology

The methods you use during your research are essential, especially if you want to ensure your research is accessible and available for people to replicate and verify your results. The type of methodology you use is essential as well, since it dictates what approach you might take throughout the experimental stage.

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Methodology samples:

Here's a condensed version of a methodology written for one of our successful publications:

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​This study employs a structured methodology to design, simulate, and test an electrooculography (EOG) circuit interfaced with a microcontroller for digital signal acquisition. The EOG circuit is built around the TL072 op-amp, chosen for its high input impedance and low noise, essential for amplifying weak EOG signals (50 µV to 3500 µV). The initial preamplifier stage uses an instrumentation amplifier configuration, with a gain of 40,000 V/V to bring signals within the detectable range, producing output voltages between 5 mV and 350 mV for the filtering stages. A band-pass filter then refines the signal to retain only EOG-relevant frequencies (0.1 Hz to 30 Hz), while a second amplification stage (gain of 10,000 V/V) prepares the signal for the Arduino Uno’s ADC input. The Arduino, with a 10-bit ADC, samples at 256 Hz, providing real-time voltage data that correlates with eye movements, ultimately enabling precise angular displacement analysis.

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