?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Instrumentasi+Acoustic+Spectroscopy+untuk+Identifikasi+Tingkat+Kadar+Air+Pada+Kayu&rft.creator=Melia+Melia+Andari%2C+0917041038&rft.subject=QC+Physics&rft.description=INSTRUMENTASI+ACOUSTIC+SPECTROSCOPY+UNTUK+IDENTIFIKASI+TINGKAT+KADAR+AIR+PADA+KAYU%0D%0A%0D%0AKayu+banyak+dimanfaatkan+di+bidang+properti%2C+seperti+rumah+dan+meubel.+Ketersediaan+dan+kemudahan+dalam+pengerjaannya+membuat+kayu+menjadi+pilihan+untuk+bahan+konstruksi.+Kadar+air+pada+kayu+sangat+berpengaruh+terhadap+kualitas+kayu.+Pada+penelitian+ini+telah+dilakukan+perancangan+dentifikasi+persentase+kadar+air+kayu+dan+analisis+frekuensi+gelombang+suara+terhadap+kadar+air+kayu+menggunakan+transformasi+fourier+cepat.+Pemrosesan+sinyal+dilakukan+dengan+bantuan+software+Matlab.+Penelitian+ini+bertujuan+membuat+desain+sederhana+alat+untuk+mengidentifikasi+tingkat+kadar+air+pada+kayu+berdasarkan+spektroskopi+gelombang+akustik+yang+dihasilkan+oleh+ketukan+palu+dan+direkam+menggunakan+mikrofon.+Berdasarkan+hasil+yang+telah+diperoleh%2C+dapat+disimpulkan+bahwa+kadar+air+kayu+berbanding+lurus+dengan+frekuensi%2C+yaitu+semakin+tinggi+kadar+air+kayu+maka+nilai+frekuensinya+semakin+besar.+Begitu+juga+sebaliknya%2C+semakin+rendah+kadar+air+kayu%2C+maka+nilai+frekuensinya+akan+semakin+kecil.%0D%0A%0D%0A%0D%0AKata+Kunci+%3A++Akustik%2C+Spektroskopi%2C+Kadar+Air+Kayu%0D%0A%0D%0A%0D%0A%0D%0AACOUSTIC+SPECTROSCOPY+INSTRUMENTATION+FOR+IDENTIFICATION+WATER+CONTENTS+IN+WOOD%0D%0A%0D%0AWood+widely+used+in+the+property+sector%2C+such+as+home+appliances+and+the+furniture.+The+availability+and+easiness+in+process+make+wood+become+an+option+in+construction+materials.+The+moisture+content+in+a+wood+affects+on+the+quality+of+wood.+This+research+designed+the+identification+of+water+percentage+contained+in+the+wood+and+the+analysis+of+the+frequency+of+the+sound+waves+against+wood+moisture+content+using+the+Fast+Fourier+Transform.+Signal+processing+conducted+with+the+help+of+Matlab+software.+This+research+aims+to+make+the+simple+design+tools+to+identify+the+level+of+moisture+in+the+wood+based+spectroscopy+acoustic+waves+generated+by+a+knock+hammer+and+recorded+using+a+microphone.+Based+on+the+result+obtained%2C+concluded+that+the+moisture+of+water+directly+proportional+againts+frequency%2C+the+higher+water+moisture%2C+then+the+bigger+value+of+the+frequency.+Otherwise+the+lower+water+moisture%2C+then+the+smaller+value+of+the+frequency.%0D%0A%0D%0A%0D%0AKey+word+%3A++acoustic%2C+spectroscopy%2C+The+moisture+content%0D%0A&rft.publisher=Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam&rft.date=2015-11-26&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F4%2FPERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F5%2FPENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F6%2FPERNYATAAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F7%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F8%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F9%2FMOTTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F10%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F11%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F12%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F13%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F16%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F17%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F18%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F19%2FDAFTAR%2520PUSTAKA.pdf&rft.identifier=++Melia+Melia+Andari%2C+0917041038++(2015)+Instrumentasi+Acoustic+Spectroscopy+untuk+Identifikasi+Tingkat+Kadar+Air+Pada+Kayu.++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+Universitas+Lampung.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F16362%2F