Ana amfani da RE542461 don firikwensin matsin mai na John Deere.

Sensors don sarrafa injin

Akwai nau'ikan na'urori masu auna firikwensin don sarrafa injin, gami da firikwensin zafin jiki, firikwensin matsa lamba, firikwensin gudu da kusurwa, firikwensin kwarara, firikwensin matsayi, firikwensin tattara iskar gas, firikwensin bugun bugun da sauransu. Irin wannan firikwensin shine jigon injin gaba ɗaya. Yin amfani da su na iya inganta ƙarfin injin, rage yawan man fetur, rage yawan iskar gas, yin la'akari da kuskure, da dai sauransu. Domin suna aiki a cikin mummunan yanayi kamar girgizar injin, tururin mai, sludge da ruwa mai laka, ma'anar fasahar su na tsayayya da yanayi mai tsanani ya fi girma fiye da haka. na talakawa na'urori masu auna firikwensin. Akwai bukatu da yawa don alamun aikinsu, daga cikinsu mafi mahimmanci shine daidaiton aunawa da aminci, in ba haka ba kuskuren da aka samu ta hanyar gano firikwensin zai haifar da gazawar tsarin sarrafa injin a ƙarshe ko gazawa.

1. Ma'aunin zafin jiki:

yafi detects engine zafin jiki, ci gas zafin jiki, sanyaya ruwa zafin jiki, man fetur zafin jiki, engine man zafin jiki, catalytic zafin jiki, da dai sauransu The m zafin jiki na'urori masu auna firikwensin ne yafi waya rauni juriya, thermistor da thermocouple. Wire rauni juriya zafin firikwensin yana da babban daidaito, amma mara kyau amsa halaye; Thermistor firikwensin yana da babban hankali da halayen amsawa masu kyau, amma rashin daidaituwa da ƙarancin zafin jiki. Nau'in thermocouple yana da madaidaicin ma'aunin ma'aunin zafin jiki mai faɗi, amma amplifier da maganin ƙarshen sanyi yakamata a yi la'akari da shi.

2. Sensor na matsi:

yafi gano cikakken matsa lamba na ci da yawa, injin digiri, na yanayi matsa lamba, injin mai lamba, birki mai matsa lamba, taya matsa lamba, da dai sauransu. Akwai da dama irin abin hawa matsa lamba na'urorin, daga cikinsu capacitive, piezoresistive, m inductance kore ta diaphragm (LVDT). ) kuma ana amfani da igiyoyin roba na saman (SAW). Na'urar firikwensin capacitive yana da halaye na babban ƙarfin shigar da kuzari, kyakkyawar amsa mai ƙarfi da daidaita yanayin muhalli. varistor yana da tasiri sosai ta yanayin zafi, don haka yana buƙatar saita yanayin ramuwa na zafin jiki, amma ya dace da samar da taro. Nau'in LVDT yana da babban fitarwa, wanda yake da sauƙi don fitarwa na dijital, amma juriya na girgiza ba shi da kyau; SAW shine firikwensin da ya dace saboda ƙananan girmansa, nauyi mai sauƙi, ƙarancin amfani da wutar lantarki, aminci mai ƙarfi, babban hankali, babban ƙuduri da fitarwa na dijital.