Umkhiqizi Wokudlulisa Ingcindezi yeLefoo

Izinzuzo Zokudlulisa Ucindezelo

I-Priture Transmitter iyidivayisi ekhiqiza isignali kagesi yokukhipha (ma noma i-microcolt) lokho kuyahluka ngengcindezi ebhekana nayo. Lapho ingcindezi iphoqeleka ku-crystal chip ngaphakathi kwenzwa futhi i-crystal ekhubazekile ikhiqiza isignali. Isiginali izodluliswa ngocingo kusibonisi noma ukuqapha okungakhombisa isignali ngenani. Isibonelo: 4ma = 0, 12ma = 50 psi, 20ma = 100 psi .... Izinzwa zokucindezela zisetshenziselwa ukuhlola ingcindezi yegesi, uketshezi, noma enye indlela.

Njengabakhiqizi benzwa yengcindezi,Ukulawulwa kwengcindezi ye-LEFOOYaklama izinhlobo eziningi zama-sensor transducers wengcindezi ngezindleko eziphansi namanani amahle. I-transducer yengcindezi ifaka phakathi inzwa yokuhluka kwengcindezi yamanzi, inzwa yokucindezela okuphelele, inzwa yengcindezi yokushisa egumbini elihlakaniphile, inzwa yengcindezi yedijithali yezimboni, inzwa yokucindezela ye-piezoresistive, Inzwa yengcindezi ye-pneumatic enesiboniso, inzwa yengcindezi ye-OEM, njll.

Izinzuzo Zokukhiqizwa Kwengcindezi

Ingcindezi ye-sensor transducer iyidivayisi equkethe inzwa yengcindezi kanye ne-amplifier yesiginali, aIngcindezi transducerIzohumushela idatha elilinganisiwe esigabeni esinamandla sikagesi esingafundwa futhi sikhonjiswe esibonisweni ngumlawuli wohlelo. Isidlulisi sokucindezela yidivayisi eguqula isignali kagesi esezingeni eliphansi kusuka ku-sensor noma i-transducer iye esigabeni esiphakeme noma uhlobo lwedatha etholakala ekudlulisweni amabanga amade. Okunjenge-4-20 mA noma okukhiphayo kwedijithali. Lokhu kukhishwa kungadlulisa amabanga amade. Ezinye izidlulisi zingahlinzeka ngemininingwane eyengeziwe mayelana nedivayisi noma inqubo elinganiswe njengengxenye yokuxhumana. Isignali ye-voltage (1-5,1-10) yisiginali ezinzile kakhulu ezimweni ezinomsindo kagesi njengezimboni ezihlobene namandla.

Izincazelo zengcindezi ephelele, ingcindezi yegaji, kanye nengcindezi yokuhluka

Ingcindezi ingamandla akhona ebusweni ngeyunithi ngayinye. Kunezinhlobo ezintathu zezilinganiso zokucindezela: ingcindezi ephelele, ingcindezi yegaji, nengcindezi yokuhlukanisa. Ingcindezi ephelele ibhekiswe esikhaleni se-vacuum (ingcindezi ye-zero). Ngokwenzayo, izinzwa zokucindezela okuphelele ze-piezoresistive zilinganisa ingcindezi ehlobene nenkomba ephezulu ye-vacuum evaliwe ngemuva kwe-dia yayo yokuzwa. I-phragm. Ingcindezi ephelele iyisamba lengcindezi yegauge (Pg) kanye nengcindezi yomkhathi (Paytm). Isifinyezo se- (Kpa: Thousand Pascal) Bar noma i-PSIA (I-Pounds nge-Square Inch Absolute.) Inzwa yengcindezi ephelele ne-altimeter kuyizinketho ezinhle zokuqapha isimo sezulu. Imvamisa ingcindezi ejwayelekile yomkhathi = 103.325 pascal = 14.7 psi = 1.01 bar.

Ingcindezi yegage iyingcindezi yangempela endaweni ye-vacuum. Isifinyezo se-PAG (Pascals Gauge) noma i-PSIG (i-Pounds nge-Square Inch Gauge) Ingcindezi yegage ilinganiswa ngokuhlobene nengcindezi yemvelo. Izimo zezulu kanye nezinguquko zokuphakama kuthonya ngqo igeji. Ingcindezi ye-Gauge inhle ngengcindezi engaphezu kwengcindezi yomkhathi, nokubi ngengcindezi engaphansi kwayo. Ingcindezi yomkhathi emaphakathi olwandle ingu-101. 325 kpa. Ingcindezi yeGauge = Ingcindezi yokucindezela-Atmosphere. I-Kpa, Bar, PSI isetshenziselwa ukuchaza inani lengcindezi yeGauge. Ngokwesibonelo ngokuvamile, ekuphileni kwethu kwansuku zonke, singase sipompa amasondo ethu emoto kusuka ku - 32 kuya ku - 40 PSI ngengcindezi yegaji.

Ingcindezi ehlukile ifana nengcindezi yegaji, Ilinganiswa ngokuya ngengcindezi yomkhathi, Ingcindezi ehlukile yakhiwe ingcindezi ephezulu nengcindezi ephansi, futhi imvamisa isetshenziselwa ukuqapha izihlungi kumapayipi noma kumathangi lapho ivala. Ingcindezi ehlukile imvamisa isifinyezo se-PAD (Pascals Differential) noma i-PSID (I-Pounds nge-Square Inch Differential, Kpa, neBar) Ingcindezi ehlukile nayo isetshenziswa ku-boiler, ingcindezi ephezulu noma ingcindezi yoketshezi noma ukuhlolwa kwezinga, nengcindezi ephansi yokuhlola ingcindezi yomoya. Lezi zingcindezi ezimbili zizokhombisa ukuthi zingaki uketshezi lusele ku-boiler.

Amayunithi wengcindezi yiPascal (Pa, N / m2), amaphawundi / intshi-sikwele (PSI), ingcindezi yomkhathi (i-atm), ne-bar. (Bar), intshi ye-mercury (inch Hg), millimeter ye-mercury (mm Hg, torr), njll. I-PSI neBar kusetshenziswa kakhulu ezimbonini zezinzwa. Ingcindezi ye-Liquid ichazwa njengamandla uketshezi ngeyunithi ngayinye endaweni ezungezile. Isibonelo, ingcindezi (P) umsebenzi wamandla (F) nendawo (A). P = F / A, (fluid P gauge = pgh)