Cov theem dej sensor: kev faib tawm, muaj nuj nqi, hauj lwm ntawm tus dais

Mov dej theem yog siv los tswj cov kua theem nyob rau hauv qhov sib txawv tso tsheb hlau luam. Cov pab kiag li lawm yog siv rau cov dej nyab tswj, dej tswj rau raising dams thiab reservoirs; nyob rau hauv tsev, lawv yog siv nyob rau hauv ntxuav machines, nyob rau hauv lub koom haum ntawm cov dej haus tshuab thiab lub cua sov, thiab thiaj li nyob. d.

Classification thiab cov hauj lwm

Cov pab kiag li lawm nyob rau qhov ntsuas txoj kev yuav tsum tau muab faib mus rau hauv kev sib cuag thiab uas tsis yog-sib cuag. Cov theem dej sensor ntawm cov thawj hom yog situated rau cov tank phab ntsa, nws keyboards rau cov neeg thaum lub caij ntawm tsis tau raws li cov theem ntawm cov kua nyob rau hauv uas nws yog muab tso rau. Nyob rau hauv tas li ntawd, cov dej theem ntsuas yuav nqa tawm los ntawm cov nram qab no txoj kev :. Capacitive, magnetic, kho qhov muag, ultrasonic, etc. Kho qhov muag sensor ntawm cov dej theem tau tsis muaj feem mus, nws yog mounted rau lub tank phab ntsa thiab yog txhais raws li qhov kom ib tug predetermined qib. kho qhov muag rays interrupt ua ib lub teeb liab hloov rau cov qhov tso zis ntawm tus dais.

Cov theem dej sensor (float), yog ib tug precision universal ntaus ntawv rau ib tug ntau ntawm cov sib txawv uas yuav tsum tau tsis tshua muaj neeg tseeb kua txaus ntsuam. Xws li yog ib thiab multi-level, raws li zoo raws li lub linear (analog).

Daws dej theem sensor yuav ua hauj lwm nrog ntau kua, cov khib nyiab thiab cov ntaub ntawv uas ua degrees ntawm toxicity thiab viscosity. Xws li yog muab faib ua capacitive thiab ultrasonic pab kiag li lawm.

Tiv tauj pab kiag li lawm (Level) yog kev sib cuag nrog lub kua, lawv yog ntsuas. Tej zaum lawv yuav muab raus rau hauv cov dej (xws li radar los yog hydrostatic) los yog kos rau hauv cov phab ntsa ntawm lub tank ntawm ib tug predetermined qhov siab (kho qhov muag nkhaus Vibratory pab kiag li lawm). Lawv yog cov kho qhov muag, piezoelectric diav rawg, radar los yog radar, hydrostatic thiab fiber optic.

Yuav ua li cas yuav ua rau ib tug dej theem sensor nyob rau hauv lub tank?

Yog hais tias koj tsis txaus siab nrog cov khoom uas yog muag nyob rau hauv khw muag khoom noj, sim ua kom xws li ib tug ntaus ntawv rau lawv tus kheej, tshwj xeeb tshaj yog vim hais tias nws yog heev yooj yim. Sensor, npaj rau koj, yog siv los tswj cov kua theem nyob rau hauv ntau yam ntawv Tuition Waiver. Los ntawm no ntaus ntawv ntawm lub teeb liab yog ua rau los yog tawm ntawm cov dej twj tso kua mis los yog signaling. Tus ntaus ntawv yog ib tug yooj yim DC amplifier, uas yog tsim nyob rau hauv lub ob transistors. Trimmer tso cai rau koj rau nruab qhov tsim nyog rhiab heev ntawm lub ntaus ntawv. Transistors muaj kev tiv thaiv semiconductor diode. Lub apparatus muab ib qho hais txog ntawm ib tug tib LED pov tseg rau hauv lub collector ntawm cov thawj transistor. Yuav kom sib sau ua ke peb yuav tsum tau resistors (220 kOhm, 10 kOhm - 3 units, 1.2 ohms.), Ib tug capacitor (470 uf / 50 V), ob tug transistors (VS547), diode (1N4001) thiab ib tug LED. Xws li ib tug tswvyim yog powered los ntawm ib tug tib neeg voltage ntawm 6-15V thiab kov ib tug hluav taws xob tam sim no ntawm 75 ma.

Lub sensor yuav siv tau raws li ib tug phaj ntawm fiberglass ntawv ci (10 x 50 hli). Lawv yuav tsum tau muab mus rau 3 hli inward ntawv ci.

xaus

Summing li, Omet, hais tias xws li pab kiag li lawm yog heev pab tau, tshwj xeeb tshaj yog nyob rau hauv lub private sector. Txiav txim rau koj tus kheej: no sensor yuav ntsia tau rau hauv lub tank rau ib tug da dej los yog da dej, thaum ywg lub vaj ntawm lub koom haum, raws li zoo raws li cia systems ntawm cov dej haus hauv koj lub tsev.