Sisitemu-insinga nini na sisitemu ebyiri

Ibyinshi muriTransmitterzashyizweho kurubuga, kandi ibimenyetso byabo bisohoka byoherezwa mucyumba cyo kugenzura, kandi imbaraga zayo ziva mucyumba cyo kugenzura. Mubisanzwe hariho inzira ebyiri zo kwanduza ibimenyetso namashanyarazi kuri transmitter:

(1) Sisitemu yinsinga enye

Amashanyarazi hamwe nibimenyetso bisohoka bigatangwa ninsinga ebyiri, kandi uburyo bwo kwinezeza bwerekanwe ku gishushanyo cya 2.3. Gushyiraho gutya byitwa transmitters. Gutanduza ibikorwa bya DDZ-ⅱ byemeza ubu buryo bwo kwibira. Ubwihatsi ni ibimenyetso byamenyerewe ukundi, nta bisabwa bikabije kuri zeru yerekana ibimenyetso byubu hamwe nimbaraga zibigize. Amashanyarazi arashobora kuba ac (220v) cyangwa dc (24v), hamwe nibimenyetso bisohoka birashobora kuba zeru (0-10MA) cyangwa kubaho zeru (4-20MA).

Igishushanyo 2.3 Gukwirakwiza-insinga enye

(1) sisitemu ebyiri-insinga

Kuri transmitter ebyiri, hari insinga ebyiri zihujwe gusa na transmitter, kandi izi nsinga zombi zohereza ibimenyetso byamashanyarazi nibimenyetso bisohoka icyarimwe, nkuko bigaragara ku gishushanyo cya 2.4. Birashobora kugaragara ko gutanga amashanyarazi, amashanyarazi hamwe no kwambura umutwaro bihujwe murukurikirane. Transminter ebyiri ihwanye no kurwanya impinduka zabo ziyobowe na parameter yapimwe. Iyo ibipimo byapimwe bihinduka, bihwanye no kurwanya aba transmitter bihinduka kubwibyo, niko ubu buryo butemba bunyuze kumutwaro birahinduka.

Igicapo 2.4 Gukwirakwiza-incunga ebyiri

Gutanga incungu ebyiri bigomba kuba byujuje ibi bikurikira:

①Ibisanzwe ikoresha muri transmitter igomba kuba ingana cyangwa munsi yagaciro ntarengwa yikimenyetso

, Iyo ni

Kubera ko umurongo w'imbaraga hamwe n'umurongo w'ikimenyetso usanzwe, imbaraga zitangwa kuri transmitter n'amashanyarazi itangwa n'ikimenyetso. Iyo ibisohoka bigezweho kuri transmister biri kumupaka wo hasi, bigomba kwemerwa ko ibikoresho bya semiconductor muri byo bishobora gukora bisanzwe.

Kubwibyo, agaciro kariho gato k'ikimenyetso kidashobora gucika intege. Kuberako kuruhande rwo hasi rwibisohoka muri transmitter, igikoresho cya semiconductor kigomba kugira ingingo isanzwe ihagaze, kandi imbaraga zubutegetsi zigomba gutangwa nimbaraga, bityo rero ibimenyetso bigomba kuba bifite zeru nzima. Ikimenyetso mpuzamahanga kirimo ubu bufatanye cyerekana 4-20Madc, itanga ibisabwa kugirango umusaruro wiremeke.

② vol voltage imiterere yo kohereza kugirango ukore mubisanzwe ni

Muri formula:ni ibisohoka voltage yo kohereza;ni ntarengwa agaciro ka voltage yamashanyarazi;ni ntarengwa yo hejuru yibisohoka, mubisanzwe 20ma;nigiciro ntarengwa cyo kurwanya agaciro ka transmitter;ni agaciro ko kurwanya insinga.

Transmitter ebyiri zigomba gukoreshwa nimbaraga imwe ya DC. Ibibyitwa byamashanyarazi bivuga imbaraga hamwe nubushobozi bwa zeru nkintangiriro, aho kuba ingufu nziza kandi mbi zingana na voltage ya zeru. Ibisohoka voltage u of transmitter bingana nitandukaniro riri hagati yububiko bwibikoresho byo gutanga amashanyarazi hamwe nigitonyanga cya voltage cyibisohoka kurubu kuri rl no kurwanya insinga. Kugirango tumenye neza imikorere isanzwe ya transmitter, ibisohoka Agaciro gakomeye gashobora guhinduka gusa murwego ruto. Niba imyigaragambyo yo kwiyongera yiyongera, voltage yamashanyarazi igomba kwiyongera; Bitabaye ibyo, voltage y'amashanyarazi irashobora kugabanuka; Niba voltage yamashanyarazi igabanuka, Kurwanya umutwaro bigomba kugabanuka; Bitabaye ibyo, ibihano birashobora kwiyongera.

③Imbaraga zingirakamaro nziza kuri transmitter kugirango ukore mubisanzwe

Kubera ko imbaraga zogutanga amashanyarazi ni nto cyane, kandi ihinduka rya voltage ya voltage cyane hamwe nibisohoka, voltage ya buri murongo wa buri murongo uhinduka cyane. Kubwibyo, mugihe ukora inyandiko ebyiri, irasabwa gukoresha amplifier yibikorwa bike ihuriweho kandi ishyiraho voltage-guhungabana hamwe nubukungu bwihuse hamwe nibikorwa byiza.

Transmitter ebyiri zifite ibyiza byinshi, bishobora kugabanya cyane ikiguzi cyo kwishyiriraho igikoresho, kandi gifasha kurinda umutekano no gukumira umutekano. Kubwibyo, ibihugu byinshi kwisi biga muri iki gihe muri iki gihe.