Ke mefuta efe e fapaneng ea li-sensors tsa boemo ba metsi?

Mefuta e fapaneng ea li-sensor tsa boemo ba metsi li kenyelletsa:

Mofuta oa Optical

Capacitive

Boikhantšo

Diaphragm

Mofuta oa bolo ea phaphametseng

1. Sensor ea boemo ba mokelikeli optical

Li-switches tsa boemo ba Optical li tiile. Ba sebelisa li-leds tsa infrared le phototransistors, tse kopantsoeng ka mokhoa o hlakileng ha sensor e le moeeng. Ha ntlha ea kutlo e qoelisoa ka har'a mokelikeli, lebone la infrared lea baleha, le etsa hore tlhahiso e fetohe. Li-sensor tsena li khona ho bona boteng kapa ho ba sieo ha hoo e batlang e le mokelikeli ofe kapa ofe. Ha li utloe leseli le leng teng, ha li angoe ke lipululana tse moeeng, 'me ha li amehe ke lipululoana tse nyenyane tsa maro. Sena se etsa hore li be molemo maemong ao ho ona liphetoho tsa boemo li hlokang ho ngoloa kapele le ka botšepehi, 'me li ka sebetsa ka botšepehi nako e telele ntle le tlhokomelo.

Bothata ba sensor ea boemo ba optical ke hore e ka tseba feela hore na mokelikeli o teng. Haeba maemo a fetohang a hlokahala, (25%, 50%, 100%, joalo-joalo) e mong le e mong o hloka sensor e eketsehileng.

2. Capacitive mokelikeli boemong ba sensor

Li-switches tsa boemo ba capacitive li sebelisa li-conductors tse peli (hangata li entsoe ka tšepe) potolohong e nang le sebaka se sekhutšoanyane pakeng tsa tsona. Ha conductor e qoelisoa ka har'a mokelikeli, e phethela potoloho.

Monyetla oa switch ea capacitive level ke hore e ka sebelisoa ho tseba ho phahama kapa ho oa ha metsi ka har'a setshelo. Ka ho etsa hore mokhanni a be le bophahamo bo lekanang le setshelo, matla a pakeng tsa li-conductor a ka lekanyetsoa. Ha ho na capacitance ho bolela hore ha ho na mokelikeli. Capacitor e felletseng e bolela setshelo se felletseng. U hloka ho rekota litekanyo tse "se nang letho" le "tse felletseng" ebe u lekanya metara ka 0% le 100% ho bontša boemo.

Le hoja li-sensor tsa capacitive level li na le monyetla oa ho se be le likarolo tse tsamaeang, e 'ngoe ea mathata a tsona ke hore ho bola ha conductor ho fetola bokhoni ba conductor mme ho hloka ho hloekisoa kapa ho nchafatsoa. Li boetse li na le kutloelo-bohloko ho mofuta oa mokelikeli o sebelisoang.

3. Conductive mokelikeli boemong ba sensor

Sesebelisoa sa conductive level ke sensor e nang le khokahano ea motlakase maemong a itseng. Sebelisa li-conductors tse peli kapa ho feta tse nang le lipheletso tse pepeneneng ka phaepheng e theohelang ka har'a mokelikeli. Nako e telele e jara motlakase o tlase, ha conductor e khuts'oane e sebelisoa ho phethela potoloho ha boemo bo phahama.

Joalo ka li-switches tsa capacitive level, li-switches tsa maemo a conductive li ipapisitse le conductivity ea mokelikeli. Ka hona, li loketse feela ho lekanya mefuta e itseng ea metsi. Ntle le moo, lipheletso tsena tsa sensor li hloka ho hloekisoa khafetsa ho fokotsa litšila.

4. Sensor ea boemo ba diaphragm

The diaphragm kapa pneumatic level switch e itšetlehile ka khatello ea moea ho sutumelletsa diaphragm, e sebetsanang le micro switch 'meleng oa sesebelisoa. Ha boemo bo ntse bo phahama, khatello ea ka hare ho tube ea ho lemoha e phahama ho fihlela microswitch kapa sensor ea khatello e sebetsa. Ha boemo ba mokelikeli bo theoha, khatello ea moea le eona ea theoha 'me sesebelisoa se hangoa.

Monyetla oa phetoho ea boemo ba diaphragm ke hore ha ho hlokahale hore ho be le motlakase ka tanka, e ka sebelisoa ka mefuta e mengata ea lino tse metsi, 'me kaha sesebelisoa ha se kopane le mokelikeli. Leha ho le joalo, kaha ke sesebelisoa sa mochini, se tla hloka tlhokomelo ha nako e ntse e ea.

5. Sensor ea boemo ba metsi a phaphametseng

The float switch ke sensor ea boemo ba pele. Ke lisebelisoa tsa mochini. Phapang e sekoti e hokeletsoe letsohong. Ha float e phahama le ho oela ka har'a mokelikeli, letsoho le sutumetsoa holimo le tlaase. Letsoho le ka hokahanngoa le sesebelisoa sa makenete kapa sa mochini ho tseba hore na ho na le / tima, kapa se ka kopanngoa le tekanyo ea boemo bo nyolohang ho tloha ho feletseng ho ea ho letho ha boemo bo theoha.

Sesepa sa float se chitja ka tankeng ea ntloana ke sensor e tloaelehileng haholo ea boemo ba phaphametseng. Lipompo tsa sump le tsona li sebelisa li-switches tse phaphametseng e le mokhoa oa moruo oa ho lekanya maemo a metsi ka har'a lipompo tsa mokatong o ka tlase.

Li-switches tsa Float li ka lekanya mofuta ofe kapa ofe oa mokelikeli 'me li ka etsoa hore li sebetse ntle le phepelo ea motlakase. Bobebe ba li-switches tsa float switches ke hore li kholo ho feta mefuta e meng ea li-switches, 'me kaha li sebetsa ka mochini, li hloka ho sebetsoa khafetsa ho feta li-switches tse ling.