He kūpono no Dongfeng Cummins ʻaila kaomi ʻaila 4921489

1. He aha ka mea ʻike kaomi?

ʻO ka ʻenekona kaomi kekahi mea e ʻike ai i ke kaomi i hana ʻia e kekahi mea a kino paha. Hiki ke helu ʻia ka nui o ke kaomi ma luna o ka mīkini e kona mana i ka sensor. Hiki i nā sensor ke kikohoʻe a i ʻole analog, akā ma kēlā me kēia ala, hiki iā lākou ke hoʻouna i kahi hōʻailona heluhelu o kahi waiwai paʻi kikoʻī i kahi wahi mamao.

ʻO ka huaʻōlelo "sensor" he huaʻōlelo maʻamau a maʻamau i kekahi ʻano, me nā lako kikoʻī hou aʻe, e like me nā transducers a me nā transmitters. I nā huaʻōlelo ʻē aʻe, ʻoiai ʻo nā mea hoʻololi kaomi a pau he mau mea ʻike, ʻaʻole nā ​​​​mea ʻike kaomi a pau he transducers. Hiki iā ʻoe ke kuhikuhi i nā ʻāpana ʻōnaehana ana i hoʻopili pololei ʻia e ke kaomi ma ke ʻano he "sensors", ma mua o nā ʻāpana kūʻokoʻa o ka ʻōnaehana e hoʻololi i kēia ʻike i nā hōʻailona uila.

2. Pehea ka hana ʻana o ka mīkini paʻi?

Ma keʻano he mea electromechanical, hiki i ka meaʻike kaomi keʻike a nānā i ke kaomi i loko o ka'ōnaehana wai ma o ka hoʻololiʻana i ka ikaika kino o ka mea i hōʻailona uila.

ʻO ka mīkini paʻakikī paʻakikī kahi ʻāpana o kahi ʻōnaehana nui, ʻaʻole ia e heluhelu wale i ka pae kaomi i hoʻohana ʻia i loko o ka ʻōnaehana, akā ʻo ia ke kuleana no ka nānā ʻana a me ka hoʻokele ʻana i ka ʻōnaehana i ka pane ʻana i ke kiʻekiʻe kaomi i ʻike ʻia. Me ka hoʻololi o ke kaomi, e hoʻololi pū ka puka hōʻailona o ka sensor. Hiki paha i kēia ke hoʻoulu i nā mana i hoʻonohonoho ʻia e hoʻā, hoʻopau a hoʻololi paha i ke kiʻekiʻe o nā ʻāpana ʻōnaehana ma kekahi mau wahi i ʻike ʻia.

3. He aha ka mea transducer kaomi?

ʻO ka transducer kaomi kahi ʻano mea ʻike kaomi, kahi i haku ʻia me ka mea pili i ke kaomi a me ka mea hoʻololi hōʻailona. Hoʻololi ka transducer i kahi hōʻailona uila haʻahaʻa mai ke kaomi mīkini hoʻokomo (mai ke kinoea a i ʻole ka wai) i loko o ka volta proportional a i ʻole milliampere output. "Transduction" 'o ia ho'i "hoololi".

4. He aha ka hana o ka mīkini transducer?

Heluhelu ka transducer i ke kaomi i loko o ka ʻōnaehana wai. A laila, hiki ke hoʻouna ʻia ka volta a i ʻole ka puka o kēia manawa o ka transducer i kahi mamao no ka nānā ʻana a me ka hoʻomaopopo ʻana i ka mana otometi a lima paha o ka ʻōnaehana. Aia nā ʻano hoʻopuka analog: 4–20 mA, 0–5 VDC, 0–10 VDC, 1Vac a i ʻole 0.333Vac. Inā hoʻohana ʻoe i ka transducer kaomi kikohoʻe (AKA pressure transmitter), hiki i nā lako uila ʻoi aku ka maikaʻi ke hāʻawi i ka hana o ka hoʻouna ʻana i nā hōʻailona ma o nā protocol kamaʻilio ʻenehana e like me Modbus a i ʻole BACnet.

5. ʻO nā transducers maloʻo a pulu

ʻO ka transducer puʻe maloʻo e ana i ka ʻokoʻa puʻe i loko o kahi mea maloʻo (e like me ka ea a i ʻole ka ʻōnaehana paipu kinoea), ʻoiai e ʻae ka transducer kaomi maʻemaʻe i ka ʻike kaomi i loko o kahi ʻōnaehana pulu (e like me ka pipeline).