Yini iseli lomthwalo?
I-Wheatstone Bridstow Bridge Circuit (manje esetshenziselwa ukukala ubunzima ebusweni besakhiwo esisekelayo) yathuthukiswa futhi yathandwa nguSir Charles Wheattone ngo-1843 yaziwa kahle kulolu hlelo lokusebenza aluqondakali kahle nokho. Izinqubo ze-Sputte ze-Sputter Thin Sputter aziyona into entsha embonini. Le ndlela isetshenziswa kuzinhlelo eziningi, ekwenzeni ama-microproces ayinkimbinkimbi enze abezokuvimbela ukuqondisisa kwamagagasi obunzima. Okokugaya izinhlayi, amageyimu amafilimu afakwe ngaphakathi kwi-substrate egcizelelwe yinketho eqeda izinkinga eziningi ezibhekene nezinkinga ezibhekene "nezindawo ezihlanganisiwe, namagagasi ama-silicon strain).
Kusho ukuthini ukuvikelwa okugcwele ngokweqile kweseli lomthwalo?
Iseli ngalinye lomthwalo lenzelwe ukungcola ngaphansi komthwalo ngendlela elawulwayo. Onjiniyela bandisa lokhu kuhlanekezelwa ukukhulisa ukuzwela kwenzwa ngenkathi kuqinisekisa ukwakheka kwesifunda "sastic". Lapho umthwalo ususiwe, ukwakheka kwensimbi, kuphambukiswa ngesifunda sawo sokunwebeka, kubuyela esimweni sawo sokuqala. Izakhiwo ezidlula lesi sifunda sokunwebeka zibizwa ngokuthi "ukugcwala ngokweqile". Inzwa egcwele ngokweqile ithola "deformation yepulasitiki," lapho ukwakheka kwazo ngokuphelele, ungalokothi ubuye esimweni sawo sokuqala. Uma ukhubazeke ngokoqobo, inzwa ayisenakuhlinzeka ngokukhishwa okuqondile kokuqukethwe komthwalo osetshenzisiwe. Ezimweni eziningi, kungumonakalo ongapheli futhi ongenakuphikiswa. "Ukuvikelwa ngokweqile" yisici sokuklama esilinganise ngomshini ukubonwa okuphelele kwenzwa ye-Sensor ngezansi komkhawulo wayo obucayile, ngaleyo ndlela ukuvikela inzwa engalindelekile emithanjeni engalindelekile engabangelwa yile ndlela yokuguquguquka kwepulasitiki.
Ungakubona kanjani ukunemba kweseli lomthwalo?
Ukunemba kwenzwa kulinganiswa kusetshenziswa amapharamitha ahlukile wokusebenza. Isibonelo, uma inzwa ilayishwe umthwalo wayo omkhulu, bese umthwalo uyasuswa, amandla enzwa abuyela kokukhishwa okufanayo kwe-zero-umthwalo kuzo zombili lezi zimo kuyisilinganiso se- "hysteresis". Amanye amapharamitha afaka ukungathembeki, ukuphindaphinda, nokuhlanzeka. Ngayinye yalezi zinhlaka ihlukile futhi inephutha layo lephesenti. Sibhala wonke la mapharamitha kudathashiet. Ukuze uthole imininingwane eningiliziwe yezobuchwepheshe yale migomo yokunemba, sicela ubheke uhlu lwethu.
Ingabe unazo ezinye izinketho zokukhishwa kwamaseli wakho womthwalo kanye nezinzwa zokucindezela ngaphandle kwe-MV?
Yebo, amabhodi okusebenza e-off-thehelofu atholakala ngamandla aze afike ku-24 VDC kanye nezinhlobo ezintathu zezinketho zokukhipha ziyatholakala: 4 kuya ku-20 ma, 0.5 kuya ku-4.5 VDC noma i-I2C Digital. Sihlala sihlinzeka ngamabhodi athengisiwe futhi alinganiselwe ngokuphelele kwi-Max Load Sensor. Izixazululo zangokwezifiso zingenziwa nganoma yisiphi esinye iphrothokholi yokukhipha.
Isikhathi Sokuposa: Meyi-19-2023
