{"title":"澜沧县半军警报金属探测器登干节拍频率振荡器","authors":"Suhaesih Rianto, Syahrir Syahrir, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i2.957","DOIUrl":null,"url":null,"abstract":"A metal detector using the Beat Frequency Oscillator principle and solenoid induction has been made using a series of tools (IC NE 555, capacitors with values of 3.3 F and 4.7 F, resistors 4.9 kΩ, enamel wire 0.3 mm, 4Ω 3W speakers, and 9V battery). The measuring limit of the tool is obtained through measurements using a metal material, namely iron, where the measured value variables are the value of frequency and voltage Vpp, and the average value of the frequency in the input data after the object is 868.1786 Hz and the average value of the Vpp voltage is 1,427 Volts. While the output data obtained the average frequency value is 863.4895 Hz and the average value of Vpp voltage is 0.325 Volt after the object, as for the sound produced before and after the object the difference is too small, so an amplifier circuit is added using an IC LM386 as Audio Amplifier.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rancang Bangun Alat Metal Detector dengan Metode Beat Frequency Oscillator\",\"authors\":\"Suhaesih Rianto, Syahrir Syahrir, Adrianus Inu Natalisanto\",\"doi\":\"10.30872/ppj.v3i2.957\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A metal detector using the Beat Frequency Oscillator principle and solenoid induction has been made using a series of tools (IC NE 555, capacitors with values of 3.3 F and 4.7 F, resistors 4.9 kΩ, enamel wire 0.3 mm, 4Ω 3W speakers, and 9V battery). The measuring limit of the tool is obtained through measurements using a metal material, namely iron, where the measured value variables are the value of frequency and voltage Vpp, and the average value of the frequency in the input data after the object is 868.1786 Hz and the average value of the Vpp voltage is 1,427 Volts. While the output data obtained the average frequency value is 863.4895 Hz and the average value of Vpp voltage is 0.325 Volt after the object, as for the sound produced before and after the object the difference is too small, so an amplifier circuit is added using an IC LM386 as Audio Amplifier.\",\"PeriodicalId\":221598,\"journal\":{\"name\":\"Progressive Physics Journal\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progressive Physics Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.30872/ppj.v3i2.957\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progressive Physics Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30872/ppj.v3i2.957","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
使用一系列工具(IC NE 555, 3.3 F和4.7 F电容，4.9 kΩ电阻，0.3 mm搪瓷线，4Ω 3W扬声器和9V电池)，制作了一个使用Beat Frequency Oscillator原理和电磁感应的金属探测器。该工具的测量极限是通过使用金属材料即铁进行测量得到的，其中测量值变量为频率和电压Vpp的值，对象后输入数据中频率的平均值为868.1786 Hz, Vpp电压的平均值为1427伏。而得到的输出数据平均频率值为863.4895 Hz，目标后Vpp电压平均值为0.325伏，由于目标前后产生的声音差异太小，因此使用LM386集成电路作为音频放大器，增加了一个放大电路。
Rancang Bangun Alat Metal Detector dengan Metode Beat Frequency Oscillator
A metal detector using the Beat Frequency Oscillator principle and solenoid induction has been made using a series of tools (IC NE 555, capacitors with values of 3.3 F and 4.7 F, resistors 4.9 kΩ, enamel wire 0.3 mm, 4Ω 3W speakers, and 9V battery). The measuring limit of the tool is obtained through measurements using a metal material, namely iron, where the measured value variables are the value of frequency and voltage Vpp, and the average value of the frequency in the input data after the object is 868.1786 Hz and the average value of the Vpp voltage is 1,427 Volts. While the output data obtained the average frequency value is 863.4895 Hz and the average value of Vpp voltage is 0.325 Volt after the object, as for the sound produced before and after the object the difference is too small, so an amplifier circuit is added using an IC LM386 as Audio Amplifier.
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