Saukewa: CET-DQ601B

Kamar yadda zaɓi da shigar na'urar firikwensin ke da babban tasiri akan daidaiton ma'auni na amplifier ɗin caji, mai zuwa shine taƙaitaccen gabatarwa: 1. Zaɓin firikwensin:
(1) Girma da nauyi: a matsayin ƙarin adadin abin da aka auna, babu makawa firikwensin zai shafi yanayin motsinsa, don haka mass ma na firikwensin ana buƙatar ya zama ƙasa da mass m na abin da aka auna. Ga wasu abubuwan da aka gwada, ko da yake adadin yana da girma gaba ɗaya, ana iya kwatanta yawan na'urar firikwensin tare da adadin gida na tsarin a wasu sassa na shigarwa na firikwensin, kamar wasu sifofi na bakin ciki, wanda zai shafi gida. yanayin motsi na tsari. A wannan yanayin, ana buƙatar ƙarar da nauyin firikwensin ya zama ƙarami sosai.
(2) Mitar resonance shigarwa: idan mitar siginar da aka auna f, ana buƙatar mitar resonance na shigarwa ya fi 5F, yayin da amsawar mitar da aka bayar a cikin jagorar firikwensin shine 10%, wanda shine kusan 1/3 na resonance na shigarwa. mita.
(3) Ƙimar caji: mafi girma mafi kyau, wanda zai iya rage riba na amplifier caji, inganta sigina-zuwa-amo da kuma rage drift.
2), Shigar da na'urori masu auna firikwensin
(1) Alamar lamba tsakanin firikwensin da ɓangaren da aka gwada zai zama mai tsabta da santsi, kuma rashin daidaituwa ya zama ƙasa da 0.01mm. Matsakaicin ramin mai ɗagawa zai kasance daidai da jagorar gwaji. Idan saman hawan yana da muni ko mitar da aka auna ya wuce 4kHz, ana iya amfani da man shafawa na siliki mai tsafta akan farfajiyar lamba don haɓaka babban haɗin haɗin gwiwa. Lokacin auna tasirin, saboda bugun bugun jini yana da babban makamashi mai wucewa, haɗin tsakanin firikwensin da tsarin dole ne ya zama abin dogaro sosai. Zai fi kyau a yi amfani da kusoshi na ƙarfe, kuma ƙarfin shigarwa yana da kusan 20kg. Cm. Tsawon kullun ya kamata ya dace: idan ya yi tsayi da yawa, ƙarfin bai isa ba, kuma idan ya yi tsayi da yawa, za a iya barin rata tsakanin firikwensin da tsarin, za a rage girman ƙarfin, da kuma sautin murya. za a rage. Bai kamata a dunƙule kullin a cikin firikwensin da yawa ba, in ba haka ba za a lanƙwasa jirgin ƙasa kuma za a yi tasiri a hankali.
(2) Dole ne a yi amfani da gasket ko tubalin tuba tsakanin firikwensin da ɓangaren da aka gwada. Matsakaicin juzu'i na gasket da tubalan jujjuya sun fi tsayin girgizar tsarin, in ba haka ba za a ƙara sabon mitar ƙara zuwa tsarin.
(3) Matsakaicin mahimmanci na firikwensin ya kamata ya kasance daidai da jagorancin motsi na ɓangaren da aka gwada, in ba haka ba zazzagewar axial zai ragu kuma ƙwaƙwalwar ƙwaƙwalwa za ta karu.
(4) Jitter na kebul zai haifar da mummunan lamba da hayaniya, don haka jagorar fitar da firikwensin ya kamata ya kasance tare da mafi ƙarancin motsi na abu.
(5) Haɗin haɗin ƙarfe na ƙarfe: kyakkyawar amsawar mitar, mafi girman ƙarar ƙarar shigarwa, na iya canja wurin babban hanzari.
(6) Insulated bolt connection: An keɓe firikwensin daga sashin da za a auna, wanda zai iya hana tasirin filin lantarki na ƙasa akan ma'aunin yadda ya kamata.
(7) Haɗin ginin daɗaɗɗen maganadisu: Tushen hawan maganadisu na iya kasu kashi biyu: rufin ƙasa da kuma rashin insulation zuwa ƙasa, amma bai dace ba lokacin da hanzarin ya wuce 200g kuma zafin jiki ya wuce 180.
(8) Ƙirƙirar kakin zuma Layer bonding: wannan hanya ce mai sauƙi, mai kyau mitar amsa, amma ba high zafin jiki resistant.
(9) Haɗin ƙulli: an fara haɗa kullin da tsarin da za a gwada, sannan a kunna firikwensin. Amfanin ba shine lalata tsarin ba.
(10) Common binders: epoxy guduro, roba ruwa, 502 manne, da dai sauransu.