Uyini Iphutha nesilinganiso

Ngo nesilinganiso nzima ukuthola ukubaluleka ipharamitha ethize kweqiniso. Ngisho noma ukubaluleka ukuthola ubukhulu ekhiqizwa nge efakazelwe amathuluzi eliphezulu, iphutha nesilinganiso sasiyoba khona, obekungadala anda elilingana ukuphambuka kusuka ukubaluleka kweqiniso yalo etholwe zokucwaninga. Enkabeni yalo, ke ephawula ukunemba izilinganiso. Kunezinhlobo eziningana kule ezidlula.

Ngakho, iphutha nesilinganiso kungaba emile noma ashukumisayo. Esimweni sokuqala ibalwa ekunqumeni abakuzuzile constants kulezi nemibandela, kuzophothulwa lapho transients amadivayisi futhi transducers izakhi. Esimeni sesibili ipharamitha kunqunywa variable (okuguqukayo) izimo. Kusho sokulinganisa lesi silinganiso ibalwa ngokukhipha esiphambekweni yokulinganisa izindlela, ichazwa yephutha ashukumisayo static, okuhambelana ukubaluleka ngesikhathi esithile.

Futhi, iphutha nesilinganiso kungaba ehlelekile futhi okungahleliwe. Esimweni sokuqala, ukuphambuka kusuka ukubaluleka kweqiniso kuyinto njalo noma njalo ushintsha uma lenza amagugu amaningi kokulinganisela okuphindiwe ipharamitha efanayo. Kukhona izinto eziningi ngoba ukuvela le ngxenye. Endabeni jikelele eziningi, lokhu uhlobo iphutha kuyinto umsebenzi:

• measurand;
• eziguquguqukayo ezinomthelela ukubaluleka kulinganiswa (lapha ngokuvamile sibhekisela lokushisa, umswakama, voltage nezinye izinto);
• isikhathi.

Iphutha ehlelekile akusho ziyehluka nokubaluleka ngemvume esimweni ucwaningo eziningana ngokulinganisa. It kuxhomeke ezicini eziningana:

1. amathuluzi AMANGA, esizibonakalisa a wokulinganisa ukuphambuka kusho imingcele kusukela izici bokuzisholo. Ngenxa Kulesi silinganiso iphutha wezinsimbi ikhiqizwa, ebalwa yethuluzi ngalinye ethile.

2. ukukhetha Impumelelo noma engalungile nesilinganiso indlela: iphutha ehlelekile.

3. Izinto ezenziwa abantu, okungukuthi, iphutha subjective.

4. Umphumela yezici ezithile imvelo bangaphandle.

Uphiko okungahleliwe kuwumphumela isenzo ahlangene we ngenxa yezizathu eziningana ezivela nomaphi ngayinye ubukhulu ethile, kwenta sibonelo, ngekuletsa Ukwedlula zinamandla njalo. Ngakho-ke, ukuboniswa le ngxenye Kunzima ukuqagela, futhi ngenxa yalokho ezikhishiwe. Ukunciphisa umphumela amaphutha okungahleliwe umphumela wokugcina we nesilinganiso wenziwa izindlela eziningana, imiphumela okuyinto kunqunywa inani eliyisilinganiso we ipharamitha oyifunayo.

Iphutha incike indlela yokunquma inani wayefisa. Ukunemba izilinganiso ngqo akunqunywa njengoba engesobala. Esimweni sokuqala, ukubaluleka ubuningi kuyinto ngokushesha ngesikhathi wokulinganisa, ukuthi ngokuqondile kulandele ifomula ibalwa ukuphambuka ezaziwayo. Esimeni sesibili, ipharamitha ezithile kunqunywa empirically, wazi ukuthi ungakwazi ukubala inani wayefisa. Kuphela ngemva kwalokho ingabalwa kusukela isiphambeko izilinganiso engesobala.

Kufanele kuqashelwe ukuthi kungenziwa eyethulwe ezihlukahlukene. Ikakhulukazi isehlane ngokuphelele, isihlobo futhi yehlise. Esimweni sokuqala umehluko okuzisholo futhi ukubaluleka langempela measurand. In the yesibili - isilinganiso ngephutha ngokuphelele futhi ukubaluleka kweqiniso. Iphutha nesilinganiso kunqunywa sokuhlukanisa ukubaluleka inani eliphelele is evamile lithathwe njengendlela njalo okwesikhathi esithile nesilinganiso sesikhathi. Hlobo luni isethulo ukhetha kuzoncika ukuhlola ethile.