Sensor ea Khatello / Transmitter / Transducer

Ba bangata ba ka 'na ba ferekanngoa ka phapang pakeng tsa, sensor ea khatello, transducer ea khatello le transmitter ea khatello ka tekanyo e fapaneng. Mantsoe ao a mararo a ka fapanyetsanoa tlas'a moelelo o itseng. Li-sensor tsa khatello le li-transducer li ka khetholloa ka lets'oao la tlhahiso. Ea pele e ka hlalosoa ka lets'oao la tlhahiso ea 4-20mA ha ea morao e nang le lets'oao la millivolt. Ka mantsoe a mang, lentsoe le nepahetseng le ka khethoa ho latela lets'oao le ts'ebeliso.

Sensor sa Khatello

Sensor ea khatello ke lentsoe le akaretsang bakeng sa mefuta eohle ea khatello, sesebelisoa se sebelisetsoang ho lekanya khatello. Ka tloaelo, letšoao la tlhahiso ea millivolt le boloka letšoao le matla ntle le tahlehelo ha sesebelisoa se joalo se kenngoa maoto a 10-20 hole le lisebelisoa tsa elektronike. Phepelo ea 5VDC e nang le lets'oao la tlhahiso ea 10mV/V e hlahisa lets'oao la tlhahiso ea 0-50mV. Theknoloji ea khale e hlahisa feela 2-3mV/V (millivolts per volt) ha boemo ba morao-rao bo khona ho hlahisa 20mV/V ka botšepehi. Lipontšo tsa Millivolt li fana ka libaka tsa polokelo bakeng sa baenjiniere ho laola pontšo ea tlhahiso ho latela litlhoko tse khethehileng tsa tsamaiso le ho fokotsa boholo ba sephutheloana hammoho le litšenyehelo.

Transducer ea Khatello

Khatello ea transducer e hlahisoang ke boemo bo phahameng ba motlakase kapa letšoao la maqhubu le kenyeletsang 0.5 4.5 V ratiometric, 1 - 5 V le 1 - 6 kHz. Output singal e lekana le phepelo ka kakaretso. Lipontšo tsa tlhahiso ea motlakase li khona ho fana ka ts'ebeliso e tlase ea hajoale bakeng sa lisebelisoa tse sebelisoang ke batter e hole. Matla a phepelo a tsoang ho 8-28 VDC a hloka phepelo e laoloang ke 5VDC, ntle le tlhahiso ea 0.5 - 4.5V. Bothata bo qhekellang ba mats'oao a motlakase a khale ha bo ho "live zero", ho na le lets'oao ha sensor e le khatellong ea zero. Hangata tsamaiso ea khale e hlōleha ho fumana phapang pakeng tsa sensor e hlōlehileng e se nang tlhahiso le khatello ea zero.

Phetiso ea Khatello

Pressure transmitter e sebetsa ka tekanyo ea hajoale ea sesebelisoa ho fapana le voltage. Sebopeho se totobetseng ke letšoao la hona joale la tlhahiso ea 4-20mA. Lonnmeterli-transmitter tsa khatelloli etselitsoe ho lekola khatello ea likepe, liphaephe kapa litanka ka nako ea nnete. Li-transmitters tsa khatello tsa 4-20mA li fana ka tšireletso e ntle ea lerata la motlakase (EMI/RFI), 'me li tla hloka phepelo ea matla ea 8-28VDC. Hobane lets'oao le ntse le hlahisa hona joale, le ka sebelisa bophelo bo bongata ba betri haeba le sebetsa ka khatello e felletseng.

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