Ubushushu be-SHT15 kunye neSensom yokufuma

Inkcazelo emfutshane:

I-SHT1x inzwa yokufuma yedijithali yinzwa ethengiswayo kwakhona. Uchungechunge lwe-SHT1x luqukethe inguqu ephantsi kwexabiso eliphantsi kunye ne-SHT10 yenzwa yomswakama, inguqu esemgangathweni kunye ne-SHT11 yenzwa yomswakama, kunye ne-high-end version kunye ne-SHT15 yomswakama womswakama. Zilinganiswe ngokupheleleyo kwaye zibonelela ngemveliso yedijithali.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

SHT15 Digital iqondo lobushushu-ukufuma isivamvo (±2%)

Abenzi boluvo bokufuma badibanisa izinto zoluvo kunye nokusetyenzwa komqondiso kwindawo encinci yeenyawo kwaye zibonelela ngemveliso yedijithali elungelelaniswe ngokupheleleyo.
Isixhobo esikhethekileyo se-capacitive sensor element sisetyenziselwa ukulinganisa ukufuma okuhambelanayo, ngelixa ubushushu bulinganiswa ne-band-gap sensor. Itekhnoloji yayo ye-CMOSens® iqinisekisa ukuthembeka okugqwesileyo kunye nokuzinza kwexesha elide.
Izinzwa zokufuma zidityaniswe ngokungenamthungo kwi-14-bit-analog-to-digital converter kunye ne-serial interface circuit. Oku kubangela umgangatho ophezulu wesignali, ixesha lokuphendula ngokukhawuleza, kunye nokungakhathaleli ukuphazamiseka kwangaphandle (EMC).

Umgaqo-nkqubo we-SHT15:

Itshiphu iqulethe i-capacitive polymer humidity element kunye ne-elementi enovakalelo lobushushu eyenziwe ngemathiriyeli yesikhewu samandla. Ezi zinto zimbini ezinovakalelo ziguqula ukufuma kunye nobushushu zibe ziimpawu zombane, ezithi zikhuliswe kuqala ngesandisi-lizwi esibuthathaka, emva koko nge-14-bit A/D converter, kwaye ekugqibeleni ngonxibelelwano lwedijithali oluneentambo ezimbini ukukhupha umqondiso wedijithali.

I-SHT15 ilinganiswe kwindawo yokufuma eqhubekayo okanye kwindawo yokushisa eqhubekayo ngaphambi kokushiya umzi-mveliso. I-coefficients yokulinganisa igcinwe kwirejista yokulinganisa, eyenza ngokuzenzekelayo izibonakaliso ezivela kwi-sensor ngexesha lenkqubo yokulinganisa.

Ukongeza, i-SHT15 ine-1 yokufudumala into edibeneyo ngaphakathi, enokunyusa ubushushu be-SHT15 malunga ne-5 ° C xa i-heater element ivuliwe, ngelixa ukusetyenziswa kwamandla kukwandiswa. Injongo ephambili yalo msebenzi kukuthelekisa amaxabiso okushisa kunye nomswakama ngaphambi nangemva kokufudumeza.

Ukusebenza kwezinto ezimbini zoluvo kunokuqinisekiswa kunye. Kwiindawo eziphakamileyo zomswakama (> 95% RH), ukufudumeza inzwa kuthintela ukunyuswa kwenzwa ngelixa kunciphisa ixesha lokuphendula kunye nokuphucula ukuchaneka. Emva kokufudumeza i-SHT15 iqondo lobushushu liyenyuka kwaye ukufuma okuhambelanayo kuyancipha, okukhokelela kumahluko omncinci kumaxabiso alinganisiweyo xa kuthelekiswa nangaphambi kokufudumeza.

Iiparamitha zokusebenza ze-SHT15 zimi ngolu hlobo lulandelayo:

1) Uluhlu lokulinganisa ukufuma: 0 ukuya kwi-100% RH;
2) Uluhlu lokulinganisa ubushushu: -40 ukuya +123.8 ° C;
3) Ukuchaneka komlinganiselo womswakama: ± 2.0% RH;
4) Ukuchaneka komlinganiselo wobushushu: ± 0.3 ° C;
5) Ixesha lokuphendula: 8 s (tau63%);
6) Ukuntywila ngokupheleleyo.

Iimpawu zokuSebenza ze-SHT15:

I-SHT15 yiqondo lobushushu ledijithali kunye neseva yokufuma evela eSensirion, eSwitzerland. I-chip isetyenziswa ngokubanzi kwi-HVAC, i-automotive, i-electronics yabathengi, ulawulo oluzenzekelayo kunye nezinye iindawo. Iimpawu zayo eziphambili zezi zilandelayo:

I-1) Hlanganisa iqondo lokushisa kunye nokufuma, ukuguqulwa komqondiso, ukuguqulwa kwe-A / D kunye ne-I2C i-interface yebhasi kwi-chip enye;
I-2) Ukubonelela nge-serial ye-serial ye-digital interface ye-SCK kunye ne-DATA, kunye nenkxaso ye-CRC yokuhanjiswa kwe-checksum;
3) Uhlengahlengiso olucwangcisiweyo lokuchaneka komlinganiselo kunye ne-converter eyakhelwe-ngaphakathi ye-A / D;
4) Ukubonelela ngembuyekezo yobushushu kunye namaxabiso okulinganisa ukufuma kunye nomsebenzi wokubala weqondo eliphezulu lombethe;
5) Unokuntywiliselwa emanzini ukulinganisa ngenxa yeteknoloji ye-CMOSens TM.