Pili i nā ʻāpana CAT excavator Pressure Sensor 276-6793

1. ʻO ka mea ʻike kaomi i ka ʻōnaehana kaupaona

Ma ke kaʻina ʻakomi o ke kaʻina kaupaona, pono ka mea ʻike kaomi e ʻike pono i ka hōʻailona gravity. A ʻoi aku ka maikaʻi o ka pane dynamic a ʻoi aku ka maikaʻi o ka hana anti-interference. Hiki ke hōʻike pololei ʻia ka hōʻailona i hāʻawi ʻia e ka sensor kaomi, hoʻopaʻa ʻia, paʻi ʻia, mālama ʻia a hoʻohana ʻia no ka mana manaʻo o ka ʻōnaehana ʻike. ʻO ka hoʻohui ʻana o ka sensor kaomi a me ke ana kaapuni e hoʻemi nui i ka nui holoʻokoʻa o nā mea hana. Eia kekahi, ʻo ka hoʻomohala ʻana i ka ʻenehana pale e hoʻomaikaʻi pū i ka hiki anti-interference a me ka degere kaohi ʻakomi o ka sensor kaomi kaumaha.

2. ʻO nā mea ʻike kaomi i ka ʻoihana petrochemical

ʻO ka sensor pressure kekahi o nā mea ana i hoʻohana nui ʻia i ka mana automation petrochemical. I loko o nā papahana kemika nui, kokoke i nā noi a pau o nā meaʻike puʻupuʻu e uhiʻia: kaʻokoʻaʻokoʻa, ka paʻakikī paʻa, ke kaomi gauge, ke kiʻekiʻe kiʻekiʻe, kaʻokoʻa likeʻole, ka wela kiʻekiʻe, ka mahana haʻahaʻa, nā meaʻike puʻupuʻu flange mamao o nā mea likeʻole a me ka hana kūikawā.

ʻO ka noi no nā sensor kaomi i ka ʻoihana petrochemical e pili nui ana i ʻekolu mau ʻano: hilinaʻi, kūpaʻa a me ka pololei kiʻekiʻe. Ma waena o lākou, hilinaʻi a me nā koi hou aʻe, e like me ka mamao mamao a me ke ʻano kaʻa, hilinaʻi i ka hoʻolālā hoʻolālā, ka pae ʻenehana hana a me nā mea hana o ka transmitter. ʻO ka paʻa a me ka pololei kiʻekiʻe o ka mea hoʻouna kaomi e hōʻoia nui ʻia e ka paʻa a me ke ana pololei ʻana o ka sensor kaomi.

ʻO ka pololei o ke ana ʻana a me ka wikiwiki o ka pane ʻana o ka mīkini paʻi e pili ana i ka pololei o ke ana ʻana o ka mea hoʻouna kaomi. ʻO ka mahana a me nā hiʻohiʻona puʻupuʻu static a me ka lōʻihi o ka lōʻihi o ka mīkini paʻi e pili ana i ka paʻa o ka transmitter. Hōʻike ʻia ke koi no nā ʻenekona kaomi i ka ʻoihana petrochemical i ʻehā mau ʻano: ke ana ʻana i ka pololei, ka pane wikiwiki, nā ʻano wela a me nā hiʻohiʻona static pressure, a me ke kūpaʻa lōʻihi.

3. ʻO ka mīkini paʻi i ka mālama wai

Ua ulu wikiwiki ka ʻoihana mālama wai mālama kaiapuni i nā makahiki i hala iho nei a he ākea ākea. I ka wai a me ka wai hoʻomaʻemaʻe wai, hāʻawi nā mea ʻike kaomi i ka mana kī a me ka nānā ʻana no ka pale ʻana o ka ʻōnaehana a me ka hōʻoia maikaʻi. Hoʻololi ka mea ʻike paʻi i ke kaomi (maʻa mau ke kaomi o ka wai a i ʻole ke kinoea) i hōʻailona uila no ka hoʻopuka. Hiki ke hoʻohana ʻia nā hōʻailona uila no ke ana ʻana i ke kiʻekiʻe wai o ka wai static, no laila hiki ke hoʻohana ʻia e ana i ka pae wai. ʻO ka mea sensing element o ka pressure sensor ka mea nui o ka silicon cup sensing element, silicone oil, isolation diaphragm and air duct. Hoʻouna ʻia ke kaomi o ka mea i ana ʻia i ka ʻaoʻao o ka ʻāpana kīʻaha silika ma o ka diaphragm kaʻawale a me ka ʻaila silicone. Ke hana nei ke kaomi kuhikuhi ma ka ʻaoʻao ʻē aʻe o ka mea kīʻaha silikona ma o ka ʻauwaʻa ea. ʻO ke kīʻaha silikoni he kīʻaha kīʻaha monocrystalline silicon wafer me ka lalo lahilahi. Ma lalo o ka hana o ke kaomi, ʻo ka diaphragm ma lalo o ke kīʻaha e hoʻoheheʻe ʻia me ka liʻiliʻi o ka neʻe ʻana. ʻO ke silikoni monocrystalline kahi elastomer kūpono. ʻO ka deformation i pili pono i ke kaomi, a maikaʻi ka hana hoʻihoʻi.

4. ʻO nā meaʻike paʻi i kaʻoihana olakino

Me ka hoʻomohala ʻana o ka mākeke lāʻau lapaʻau, ua kau ʻia nā koi kiʻekiʻe no ka hoʻohana ʻana i nā sensor kaomi i ka ʻoihana olakino, e like me ka pololei, hilinaʻi, kūpaʻa a me ka nui. He noi maikaʻi ka ʻenekona kaomi i ka ablation catheter invasive liʻiliʻi a me ke ana ʻike wela.

5.MEMS kaomi kaomi

ʻO ka sensor puʻe MEMS kahi ʻano mea kiʻiʻoniʻoni lahilahi, e hoʻoheheʻe ʻia ke kau ʻia i ke kaomi. Hiki ke hoʻohana ʻia nā kānana (piezoresistive sensing) no ke ana ʻana i kēia deformation, a hiki ke hoʻohana ʻia ka capacitive sensing e ana i ka loli o ka mamao ma waena o ʻelua mau papa.