Hitachi excavator part EX200-2/3/5 pressure switch sensor 4436271

Njira yogwirira ntchito

1) Magnetoelectric mphamvu

Malinga ndi lamulo la Faraday la electromagnetic induction, kukula kwa mphamvu yamagetsi yomwe imapangidwa mu koyiloyo kumadalira kusintha kwa maginito omwe amadutsa pa coil pamene N-turn coil imayenda mu maginito ndikudula mzere wa mphamvu ya maginito. kapena kusintha kwa maginito kwa maginito kumene koyiloyo ili).

Linear kusuntha magnetoelectric sensor

The liniya kusuntha magnetoelectric sensor imakhala ndi maginito osatha, koyilo ndi nyumba ya sensa.

Pamene chipolopolo chimagwedezeka ndi thupi logwedezeka kuti liyesedwe ndipo kugwedezeka kwafupipafupi kumakhala kokwera kwambiri kusiyana ndi ma frequency achilengedwe a sensa, chifukwa kasupe ndi wofewa ndipo unyinji wa gawo losuntha ndilokulirapo, ndichedwa kwambiri kuti gawo losuntha liziyenda. kunjenjemera (kuyimirira) ndi thupi lonjenjemera. Panthawiyi, kuthamanga kwachibale pakati pa maginito ndi koyilo kuli pafupi ndi liwiro la kugwedezeka kwa vibrator.

Mtundu wa Rotary

Chitsulo chofewa, koyilo ndi maginito okhazikika ndizokhazikika. Zida zoyezera zopangidwa ndi maginito conductive zimayikidwa pathupi lozungulira. Nthawi zonse dzino likamazunguliridwa, mphamvu ya maginito ya maginito yomwe imapangidwa pakati pa giya yoyezera ndi chitsulo chofewa chimasintha kamodzi, ndipo maginito amasinthasintha kamodzi. Mafupipafupi (chiwerengero cha ma pulses) cha mphamvu ya electromotive mu koyilo ndi yofanana ndi chiwerengero cha mano pamagetsi oyezera ndi liwiro lozungulira.

Hall zotsatira

Pamene semiconductor kapena zitsulo zojambulazo aikidwa mu maginito, pamene panopa (mu ndege malangizo a zojambulazo perpendicular kwa maginito munda) umayenda, ndi electromotive mphamvu kwaiye mu malangizo perpendicular kwa maginito ndi panopa. Chodabwitsa ichi chimatchedwa Hall effect.

Hall element

Zomwe zimagwiritsidwa ntchito kwambiri pa Nyumbayi ndi germanium (Ge), silicon (Si), indium antimonide (InSb), indium arsenide (InAs) ndi zina zotero. N-mtundu wa germanium ndiyosavuta kupanga ndipo ili ndi coefficient yabwino ya Hall, magwiridwe antchito komanso mzere. Silicon yamtundu wa P ili ndi mzere wabwino kwambiri, ndipo mawonekedwe ake a Hall ndi kutentha kwake ndi ofanana ndi a N-mtundu wa germanium, koma kuyenda kwake kwa ma elekitironi kumakhala kotsika komanso kutsitsa kwake kumakhala kocheperako, kotero sikumagwiritsidwa ntchito ngati Holo imodzi. chinthu.