Cost Efficient Audio Spectrum Analyzer: Design and Study

Zhyvaha, Yevheniia; Klym, Halyna; Dunets, Roman

doi:10.1109/idaacs53288.2021.9661036

Cited by 1 publication

(1 citation statement)

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“…The first experimental scenario, the pattern and behavior of rats were tested with a rat repellent device with various levels of frequency with a certain time span. By using a spectrum analyzer device [23], ultrasonic frequencies are detected in real conditions according to the environment. The picture shows the active ultrasonic spectrum in the 48 kHz range.…”

Section: ) First Experimentsmentioning

confidence: 99%

Dynamic Ultrasonic Wave Generators as an Alternative Technology to Field Rat Repellents

Vikri,

Rokhmah

2022

ULTIMA Computing

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The case of crop failure caused by pest attacks is one of the problems in agriculture that is always interesting to study. Apart from weather factors, pest attacks on rice and corn agricultural commodities often occur just before harvest time. Currently, farmers often use toxic materials and even electricity as a means to repel and eradicate rat pests. However, this method can be dangerous for the farmers themselves. There have even been several cases of death due to electrical equipment installed in agricultural areas. Based on these problems, a pest repellent will be made by utilizing ultrasonic waves from a solar-powered power source so that it can be used efficiently, practically and safely. This tool is built using IC NE556C, Solar Panel, LDR Sensor (Light Dependent Resistor), and Ultrasonic Piezo PTC 4000 Speaker. IC NE556C timer and ultrasonic wave multivibrator are used to generate ultrasonic waves randomly according to the program. The purpose of making this tool is as an alternative to field mouse pest repellent using ultrasonic waves by utilizing solar energy in handling pests in agricultural areas.

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Section: ) First Experimentsmentioning

confidence: 99%