DS18B20 Kikohoʻe wela wela
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Kikohoʻe DS18B20 wela wela no ke kaʻa
ʻO DS18B20 ka mea maʻamau i hoʻohana maʻamau ʻia i ke kiʻekiʻe kiʻekiʻe kiʻekiʻe hoʻokahi pahi ana i ka wela kikohoʻe chip. Loaʻa iā ia nā hiʻohiʻona o ka liʻiliʻi liʻiliʻi, ke kumukūʻai haʻahaʻa haʻahaʻa, ka ikaika anti-interference ikaika a me ka pololei kiʻekiʻe.
Lawe kēia mea ʻike wela DS18B20 i ka chip DS18B20 ma ke ʻano he kumu o ke ana wela, ʻo ka pae wela o ka hana -55 ℃～+105 ℃. ʻO ± 0.5 ℃ ka hoʻokaʻawale ʻana ma ka pae wela o -10 ℃～+80 ℃. -
Kikohoʻe wela wela no ka paila, maʻemaʻe lumi a me ka mīkini lumi
Paʻa ka hōʻailona hoʻopuka DS18B20 a ʻaʻole e hoʻoneʻe i nā mamao hoʻouna lōʻihi. He kūpono ia no ka ʻike ʻana i ka wela o nā wahi lōʻihi. Hoʻouna ʻia nā hopena ana ma ke ʻano he 9-12-bit ka nui kikohoʻe. Loaʻa iā ia nā hiʻohiʻona o ka hana paʻa, ke ola lawelawe lōʻihi, a me ka ikaika anti-interference.
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Logistics kaulaʻi anu Temperature Control
Hoʻohana ka DS18B20 temperature sensor i kahi puʻupuʻu DS18B20, loaʻa kahi pae wela hana o -55 ° C a + 105 ° C, kahi kūpono o ka mahana o -10 ° C a + 80 ° C, a me kahi hewa o 0.5 ° C; ua hana ʻia me ka conductor wire sheathed ʻekolu-core a hoʻopili ʻia me ka hoʻohana ʻana i ka epoxy resin perfusion.
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DS18B20 ʻike wela wai
ʻO ka DS18B20 Waterproof Digital Temperature Sensor kahi ʻano o ka ʻike wela i hoʻolālā ʻia e ana i ka mahana ma nā noi like ʻole e like me HVAC, refrigeration, a me ka nānā ʻana i ka wā. Hiki i ka mea ʻike ke hāʻawi i nā heluhelu wela kūpono ma kahi ākea (-55°C a i +125°C) a loaʻa iā 0.0625°C ka hopena. Loaʻa iā ia kahi puʻupuʻu wai e hāʻawi i ka pale mai ka makū, kūpono ia no ka hoʻohana ʻana i waho.
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ʻO DS18B20 ʻO ka ʻike wela no ka mea hoʻoheheʻe lāʻau lapaʻau
ʻAʻole koi ka DS18B20 i kahi kumu mana waho e hana ai. Hoʻohana ʻia ka mea hana ke kiʻekiʻe ka laina data DQ. Hoʻopiʻi ka capacitor i loko (Spp) i ka huki ʻana o ke kaʻa i kahi kiʻekiʻe, a e hoʻoikaika ka capacitor i ka hāmeʻa ke huki haʻahaʻa ke kaʻa. ʻO ka "Parasitic Power" ka huaʻōlelo i hoʻohana ʻia e wehewehe i kēia ʻano o ka hoʻohana ʻana i ka mīkini pahi 1-Wire.
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1-Wire Bus Protocol Temperature Sensor No Robot Industrial
ʻO ka protocol bus 1-Wire, i hoʻohana ʻia e ka DS18B20, pono hoʻokahi hōʻailona mana no ke kamaʻilio. No ka pale ʻana i ke awa kaʻa i loko o kahi kūlana 3-state a i ʻole kiʻekiʻe-impedance kūlana, pono ka laina hōʻailona hoʻomalu i kahi pale huki ala ala (ʻo ka laina hōʻailona DQ ma ka DS18B20). Hoʻomaopopo ka microcontroller (master device) i kēia ʻōnaehana kaʻa i nā mea hana o ke kaʻa ma o kā lākou mau helu serial 64-bit. Hiki paha i ke kaʻa kaʻa ke kākoʻo i ka helu palena ʻole o nā hāmeʻa no ka mea he helu serial ʻokoʻa kēlā me kēia.
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Kikokikona wela wela no ke anu -Chain System hale hale a me ka Waina
ʻO ka DS18B20 kahi mea ʻike wela kikohoʻe kaulana me nā hiʻohiʻona o ka liʻiliʻi liʻiliʻi, ʻoi aku ka liʻiliʻi o ka lako ma luna, nā mana anti-interference ikaika, a me ka pololei kiʻekiʻe. Hoʻopuka ia i nā hōʻailona kikohoʻe. He mea maʻalahi ka DS18B20 digital temperature sensor i ka uea a hoʻopili ʻia i nā ʻano like ʻole, me ka pipeline, screw, magnet adsorption, stainless steel, a me nā koho hoʻohālike he nui.
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ʻO ka ʻike wela o ka hale ʻōmaʻomaʻo
ʻO ka heluhelu wela mai ka DS18B20 wela wela he 9-bit (binary), e hōʻike ana e hoʻouna ʻia ka ʻikepili wela o ka hāmeʻa i ka sensor wela DS18B20 ma o ka laina laina hoʻokahi a i ʻole e hoʻouna ʻia mai ka ʻike wela DS18B20. ʻO ka hopena, pono hoʻokahi laina (me ka ʻāina) e hoʻopili i ka CPU host i ka sensor wela DS18B20, a hiki i ka laina ʻikepili ke hana ma ke ʻano he kumu mana o ka sensor ma kahi o kahi kumu mana waho.