2
、傳感器電路一定要簡單精煉。設想具有3級放大電路的，帶有2jiyouyuanlvboqidefangdahuilu，fangdalexinhaodetongshiyejiangzaoshengfangdale，ruguozaoshengbushimingxianpianliyouyongxinhaopinpu，zewulunzenyanglvboliangzhetongshifangda，jieguoxinzaobimeiyoutigao。yincichuanganqidianluyidingyaojinglianjianyue。nengsheng1隻zhi電dian阻zu或huo電dian容rong就jiu一yi定ding要yao將jiang它ta去qu掉diao。這zhe一yi點dian是shi許xu多duo設she計ji傳chuan感gan器qi的de工gong程cheng師shi們men容rong易yi忽hu略lve的de問wen題ti。已yi知zhi的de情qing況kuang是shi，傳chuan感gan器qi電dian路lu隨sui著zhe噪zao聲sheng的de問wen題ti困kun擾rao，電dian路lu越yue修xiu改gai越yue複fu雜za，成cheng為wei怪guai圈quan。

　　
3.、功(gong)耗(hao)問(wen)題(ti)。傳(chuan)感(gan)器(qi)通(tong)常(chang)在(zai)後(hou)續(xu)電(dian)路(lu)的(de)前(qian)端(duan)
，有(you)可(ke)能(neng)需(xu)要(yao)較(jiao)長(chang)的(de)引(yin)線(xian)連(lian)接(jie)。當(dang)傳(chuan)感(gan)器(qi)功(gong)耗(hao)較(jiao)大(da)時(shi)引(yin)線(xian)的(de)連(lian)接(jie)將(jiang)會(hui)所(suo)有(you)的(de)無(wu)謂(wei)噪(zao)聲(sheng)以(yi)及(ji)電(dian)源(yuan)噪(zao)聲(sheng)引(yin)入(ru)使(shi)得(de)後(hou)續(xu)電(dian)路(lu)愈(yu)發(fa)難(nan)以(yi)設(she)計(ji)。在(zai)夠(gou)用(yong)的(de)情(qing)況(kuang)小(xiao)如(ru)何(he)降(jiang)低(di)功(gong)耗(hao)也(ye)是(shi)一(yi)個(ge)不(bu)小(xiao)的(de)考(kao)驗(yan)。

　　
4、元yuan器qi件jian的de選xuan用yong和he電dian源yuan回hui路lu。元yuan器qi件jian的de選xuan用yong一yi定ding要yao夠gou用yong為wei好hao
，隻zhi要yao器qi件jian指zhi標biao在zai需xu要yao的de範fan圍wei之zhi內nei就jiu可ke以yi了le
，餘yu下xia的de就jiu是shi電dian路lu設she計ji問wen題ti。電dian源yuan是shi傳chuan感gan器qi電dian路lu設she計ji過guo程cheng一yi定ding要yao遇yu到dao的de難nan題ti，不bu要yao追zhui求qiu無wu法fa達da到dao的de電dian源yuan指zhi標biao
，而er選xuan擇ze一yi款kuan帶dai有you較jiao好hao的de共gong模mo抑yi製zhi比bi的de運yun放fang

，采cai用yong差cha分fen放fang大da電dian路lu設she計ji可ke能neng最zui普pu通tong的de開kai關guan電dian源yuan以yi及ji器qi件jian就jiu能neng滿man足zu你ni的de要yao求qiu。電dian源yuan的de退tui偶ou一yi定ding要yao可ke靠kao設she計ji，並bing且qie遵zun循xun器qi件jian手shou冊ce的de要yao求qiu
，寧ning多duo勿wu少shao。