masensa Analogi chimagwiritsidwa ntchito makampani olemera, makampani kuwala, nsalu, ulimi, kupanga ndi kumanga, maphunziro moyo watsiku ndi tsiku ndi kafukufuku sayansi, ndi zina. Kachipangizo ka analogi amatumiza chizindikiro mosalekeza, ndi voteji, panopa, kukana etc, kukula kwa magawo kuyeza. Mwachitsanzo, sensa ya kutentha, sensa ya gasi, kachipangizo kakang'ono ndi zina zotero ndizodziwika bwino za analogi.
Analogi kuchuluka kwa sensor imakumananso ndi zosokoneza potumiza ma siginecha, makamaka chifukwa cha izi:
1.Kusokoneza kwa Electrostatic
Electrostatic kupatsidwa ulemu chifukwa cha kukhalapo kwa parasitic capacitance pakati madera awiri nthambi kapena zigawo zikuluzikulu, kotero kuti mlandu mu nthambi imodzi umasamutsidwa ku nthambi ina kudzera parasitic capacitance, nthawi zina amatchedwanso capacitive lumikiza.
2, Kusokoneza kwa Electromagnetic induction
Pakakhala kuyanjana pakati pa mabwalo awiri, zosintha zomwe zikuchitika mudera limodzi zimaphatikizidwa ndi zina kudzera mugawo la maginito, chodabwitsa chomwe chimatchedwa electromagnetic induction. Izi nthawi zambiri amakumana ndi ntchito masensa, ayenera kulabadira mwapadera.
3, Kutayikira chimfine ayenera kusokoneza
Chifukwa cha kusungunula koyipa kwa chigawocho, positi yama terminal, bolodi yosindikizidwa, dielectric yamkati kapena chipolopolo cha capacitor mkati mwa dera lamagetsi, makamaka kuchuluka kwa chinyezi m'malo ogwiritsira ntchito sensa, kukana kwa insulator kumachepa, ndi ndiye kutayikira kwapano kudzawonjezeka, motero kumayambitsa kusokoneza. Zotsatira zake zimakhala zowopsa makamaka pamene kutayikira kumalowa mu gawo lolowera gawo loyezera.
4, Kusokoneza pafupipafupi kwa wailesi
Ndiko makamaka kusokonezeka komwe kumachitika chifukwa cha kuyambika ndi kuyimitsidwa kwa zida zazikulu zamagetsi ndi kusokoneza kwapamwamba kwa harmonic.
5.Zinthu zina zosokoneza
Makamaka amatanthauza malo osauka ntchito dongosolo, monga mchenga, fumbi, chinyezi mkulu, kutentha, mankhwala zinthu ndi zina nkhanza chilengedwe. M'malo ovuta, zidzakhudza kwambiri ntchito za sensa, monga kafukufuku watsekedwa ndi fumbi, fumbi ndi zinthu zina, zomwe zidzakhudza kulondola kwa muyeso. M'malo otentha kwambiri, nthunzi yamadzi imatha kulowa mkati mwa sensa ndikuwononga.
Sankhani azitsulo zosapanga dzimbiri kafukufuku nyumba, yomwe imakhala yolimba, yotentha kwambiri komanso yosagwirizana ndi dzimbiri, komanso fumbi ndi madzi kuti zisawonongeke mkati mwa sensa. Ngakhale kuti chipolopolo cha probe sichikhala ndi madzi, sichidzakhudza liwiro la kuyankha kwa sensa, ndipo kutuluka kwa mpweya ndi liwiro la kusinthana kuli mofulumira, kuti akwaniritse zotsatira za kuyankha mofulumira.
Kupyolera mu zokambirana zomwe zili pamwambazi, tikudziwa kuti pali zinthu zambiri zosokoneza, koma izi ndizochitika zokhazokha, zenizeni za zochitika, zikhoza kukhala chifukwa cha zinthu zosiyanasiyana zosokoneza. Koma izi sizikhudza kafukufuku wathu paukadaulo wa analog sensor anti-jamming.
Tekinoloje ya anti-jamming ya analogi imakhala ndi izi:
6.Sheilding Technology
Zotengera zimapangidwa ndi zitsulo. Dera lomwe limafunikira chitetezo limakulungidwa momwemo, lomwe lingalepheretse bwino kusokoneza magetsi kapena maginito. Njira imeneyi imatchedwa kutchinga. Kutchinga kungagawidwe mu electrostatic shielding, electromagnetic shielding and low frequency magnetic shielding.
(1) Electrostatic Shieding
Tengani mkuwa kapena zotayidwa ndi zitsulo zina conductive monga zipangizo, kupanga chatsekedwa zitsulo chidebe, ndi kugwirizana ndi waya pansi, kuika mtengo wa dera kutetezedwa mu R, kuti kusokoneza kunja magetsi munda sichimakhudza dera mkati, ndipo mosiyana, gawo lamagetsi lopangidwa ndi dera lamkati silingakhudze dera lakunja. Njira imeneyi imatchedwa electrostatic shielding.
(2) Electromagnetic Shielding
Pakusokoneza pafupipafupi maginito, mfundo ya eddy current imagwiritsidwa ntchito kupanga ma frequency interference electromagnetic field kupanga eddy current muzitsulo zotchinga, zomwe zimawononga mphamvu yakusokoneza maginito, ndipo eddy panopa maginito amaletsa kusokoneza pafupipafupi maginito, kotero kuti dera lotetezedwa litetezedwe ku chikoka cha ma frequency a electromagnetic field. Njira yotchinjiriza iyi imatchedwa electromagnetic shielding.
(3) Low Frequency Magnetic Shielding
Ngati ndi maginito otsika kwambiri, zochitika zamakono za eddy sizidziwikiratu panthawiyi, ndipo zotsutsana ndi zosokoneza sizili zabwino kwambiri pogwiritsa ntchito njira yomwe ili pamwambayi. Chifukwa chake, maginito apamwamba a maginito amayenera kugwiritsidwa ntchito ngati chotchinga chotchinga, kuti achepetse mzere wocheperako wosokoneza maginito mkati mwa wosanjikiza wotchinga ndi maginito ochepa. Dera lotetezedwa limatetezedwa ku kusokonezeka kwa maginito otsika pafupipafupi. Njira yodzitchinjiriza imeneyi imatchedwa kuti low frequency magnetic shielding. Chigoba chachitsulo cha chida chodziwira sensor chimakhala ngati chishango chochepa cha maginito. Ngati ikhazikikanso, imagwiranso ntchito ngati electrostatic shielding ndi electromagnetic shielding.
7.Grounding luso
Ndi imodzi mwa njira zothandiza kupondereza kusokonezedwa ndi chitsimikizo chofunika cha teknoloji yotetezera. Kukhazikika kolondola kumatha kupondereza kusokoneza kwakunja, kuwongolera kudalirika kwa mayeso, ndikuchepetsa kusokoneza komwe kumapangidwa ndi dongosolo lokha. Cholinga cha maziko ndi pawiri: chitetezo ndi kusokoneza kuponderezedwa. Choncho, kuyika pansi kumagawidwa kukhala maziko otetezera, kutchinga pansi ndi kuyika chizindikiro. Pofuna chitetezo, casing ndi chassis cha chipangizo choyezera sensor chiyenera kukhazikitsidwa. Chizindikiro chapansi chimagawidwa kukhala chizindikiro cha analogi ndi chizindikiro cha digito, chizindikiro cha analogi nthawi zambiri chimakhala chofooka, choncho zofunikira zapansi ndizokwera; chizindikiro cha digito nthawi zambiri chimakhala champhamvu, choncho zofunikira zapansi zimatha kukhala zotsika. Mitundu yosiyanasiyana yodziwira sensa imakhalanso ndi zofunikira zosiyana panjira yopita pansi, ndipo njira yoyenera yoyambira iyenera kusankhidwa. Njira zodziwika zoyambira pansi zimaphatikizirapo mfundo imodzi ndi kuyikapo mfundo zambiri.
(1) Kukhazikitsa mfundo imodzi
M'mabwalo ocheperako, nthawi zambiri amalimbikitsidwa kugwiritsa ntchito poyambira mfundo imodzi, yomwe imakhala ndi mzere woyambira komanso woyambira mabasi. Ma radiological grounding amatanthauza kuti dera lililonse logwira ntchito muderali limalumikizidwa mwachindunji ndi zero zomwe zingatchulidwe ndi mawaya. Kuyika mabasi kumatanthauza kuti ma conductor apamwamba omwe ali ndi malo ena odutsa amagwiritsidwa ntchito ngati basi yoyambira, yomwe imalumikizidwa mwachindunji ndi zero zomwe zingatheke. Pansi pa chipika chilichonse chogwira ntchito muderali chikhoza kulumikizidwa ndi basi yapafupi. Zomverera ndi zida zoyezera zimapanga njira yodziwira kwathunthu, koma zitha kukhala zotalikirana.
(2) Kukhazikitsa mfundo zingapo
Mabwalo othamanga kwambiri nthawi zambiri amalimbikitsidwa kuti azitha kuyika ma point-point. Mkulu pafupipafupi, ngakhale nthawi yochepa pansi adzakhala lalikulu impedance voteji dontho, ndi zotsatira za capacitance anagawira, zosatheka mfundo imodzi earthing, choncho angagwiritsidwe ntchito lathyathyathya mtundu grounding njira, kutanthauza multipoint earthing njira, ntchito conductive zabwino ziro. kuthekera kolozera pa ndege thupi, mkulu pafupipafupi dera kulumikiza ndege yapafupi conductive pa thupi. Chifukwa kukwera kwapang'onopang'ono kwa ndege yoyendetsa ndege kumakhala kochepa kwambiri, kuthekera komweko pamalo aliwonse kumatsimikizika, ndipo bypass capacitor imawonjezedwa kuti muchepetse kutsika kwamagetsi. Chifukwa chake, izi ziyenera kutengera njira yoyambira yamitundu yambiri.
8.Ukadaulo wosefa
Zosefera ndi imodzi mwa njira zothandiza kupondereza kusokoneza AC serial mode. Zosefera zodziwika bwino pagawo lozindikira sensa zimaphatikizapo RC fyuluta, fyuluta yamagetsi ya AC ndi fyuluta yeniyeni yamagetsi.
(1) RC fyuluta: pamene gwero la chizindikiro ndi sensa yokhala ndi kusintha kwapang'onopang'ono monga thermocouple ndi strain gage, fyuluta ya RC yokhala ndi voliyumu yaying'ono komanso yotsika mtengo idzakhala ndi zotsatira zabwino zolepheretsa kusokoneza mndandanda. Komabe, ziyenera kudziwidwa kuti zosefera za RC zimachepetsa kusokoneza kwamitundu ingapo potengera liwiro la kuyankha kwamakina.
(2) Fyuluta yamagetsi ya AC: maukonde amagetsi amatengera phokoso lambiri komanso lotsika pafupipafupi, lomwe limagwiritsidwa ntchito kupondereza phokoso losakanikirana ndi fyuluta yamagetsi ya LC.
(3) Fyuluta yamagetsi ya DC: Mphamvu yamagetsi ya DC nthawi zambiri imagawidwa ndi mabwalo angapo. Pofuna kupewa kusokonezedwa ndi mabwalo angapo kudzera kukana kwamkati kwamagetsi, RC kapena LC decoupling fyuluta iyenera kuwonjezeredwa kumagetsi a DC a dera lililonse kuti asasefe phokoso lotsika.
9.Tekinoloje yolumikizana ndi Photoelectric
Ubwino waukulu wa kugwirizana kwa photoelectric ndikuti ukhoza kuletsa bwino kugunda kwapamwamba ndi mitundu yonse ya kusokoneza phokoso, kotero kuti chiŵerengero cha chizindikiro ndi phokoso mu njira yotumizira chizindikiro chikhale bwino kwambiri. Phokoso losokoneza, ngakhale pali mitundu yambiri yamagetsi, koma mphamvuyo ndi yaying'ono kwambiri, imatha kupanga mphamvu yofooka, ndipo gawo la photoelectric coupler athandizira mbali ya kuwala emitting diode ndi ntchito panopa, general kalozera magetsi panopa 10 ma ~ 15 ma, kotero ngakhale pali kusokoneza kwakukulu, kusokoneza sikungathe kupereka zokwanira panopa ndi kuponderezedwa.
Onani apa, ndikukhulupirira kuti tili ndi chidziwitso cha zinthu zosokoneza sensa ya analoji ndi njira zotsutsana ndi kusokoneza, pogwiritsa ntchito sensa ya analogi, ngati kusokonezeka kwachitika, malinga ndi zomwe zili pamwambazi kafukufuku wina, malinga ndi momwe zinthu zilili. kuchitapo kanthu, sayenera kukonza khungu, kupewa kuwonongeka kwa sensa.
Nthawi yotumiza: Jan-25-2021
