Pressure sensor 89448-34020 yeToyota mota zvikamu

1. Kukurukurirana kure

Yazvino (4 kusvika 20 mA) ndiyo yakasarudzika analog interface kana uchitumira ruzivo pamusoro pechinhambwe chakareba. Izvi zvinodaro nekuti iyo voltage inobuda inokonzeresa kukanganisa ruzha, uye iyo chiratidzo pachayo inozodzikiswa netambo kuramba. Nekudaro, iyo yazvino inoburitsa inogona kumira madaro marefu uye inopa yakakwana uye chaiyo yekumanikidza kuverenga kubva kune inotapurirana kune iyo data yekutora system.

2. Kusimba kune RF kupindira

Mitsetse yetambo iri panjodzi yemagetsi emagetsi (EMI)/ radio frequency (RFI)/ electrostatic (ESD) kukanganiswa kubva kune tambo dzepedyo nemitsetse. Iyi ruzha rusina kufanira rwemagetsi runokonzeresa kukuvadzwa kwakanyanya kune yakakwira impedance masiginecha akadai semagetsi masaini. Dambudziko iri rinogona kukundwa nyore nyore nekushandisa yakaderera impedance uye yakakwira masaini masaini, senge 4-20 mA.

3, kugadzirisa dambudziko

Iyo 4-20 mA chiratidzo ine 4 mA inobuda uye kukosha kwekumanikidza i zero. Izvi zvinoreva kuti chiratidzo chine "live zero", saka kunyangwe iyo yekumanikidza kuverenga iri zero, inopedza 4 mA yezvino. Kana iyo chiratidzo ichidonha kusvika ku0 mA, basa iri rinogona kupa mushandisi chiratidzo chakajeka chekuverenga kukanganisa kana kurasikirwa kwechiratidzo. Izvi hazvigone kuwanikwa mune yemagetsi masaini, ayo anowanzo kubva 0-5 V kana 0-10 V, apo 0 V inobuda inoratidza zero kudzvanywa.

4. Kuzviparadzanisa nevamwe

Iyo 4-20 mA inobuda siginecha yakaderera impedance yazvino chiratidzo, uye kudzika pamigumo yese (kutumira uye kugamuchira) kunogona kutungamira kune yakadzika loop, zvichikonzera chiratidzo chisina kunaka. Kuti udzivise izvi, yega yega 4-20 mA sensor mutsara unofanirwa kuve wakasarudzika. Nekudaro, zvichienzaniswa ne 0-10 V yakabuda, izvi zvinodzivirira sensor kubva kune daisy-yakasungwa kune imwechete tambo tambo.

5. Kugamuchira kururama

Kana uchitumira kubva kune yekumanikidza sensor, iyo voltmeter inogona kududzira zviri nyore iyo 0-10 V chiratidzo pamagumo ekugamuchira. Kune 4-20 mA kubuda, chiratidzo chinogona kuverengwa chete mushure mekunge mugamuchiri ashandurwa kuita voltage. Kuti uchinje chiratidzo ichi kuita kudonha kwevoltage, resistor yakabatana munhevedzano pane inobuda terminal. Iko kurongeka kweichi resistor kwakakosha zvakanyanya pakuyera kuyerwa kwechiratidzo chakagamuchirwa.