{"id":16343,"date":"2024-11-13T09:29:41","date_gmt":"2024-11-13T09:29:41","guid":{"rendered":"https:\/\/kcsensor.com\/?p=16343"},"modified":"2026-09-22T10:16:03","modified_gmt":"2026-09-22T10:16:03","slug":"ultrasonic-radar-capacitive-level-sensors","status":"publish","type":"post","link":"https:\/\/www.kcsensor.com\/cs\/ultrasonic-radar-capacitive-level-sensors\/","title":{"rendered":"Ultrazvukov\u00e9 vs Radar vs Capacitive Level Sensors: Jak si vybrat"},"content":{"rendered":"

Ultrazvukov\u00e9, radarov\u00e9 a kapacitn\u00ed senzory v\u0161echny \u00farovn\u011b m\u011b\u0159en\u00ed, ale vyhovuj\u00ed r\u016fzn\u00fdm kapalin\u00e1m a prost\u0159ed\u00edm: ultrazvukov\u00e9 je non-kontakt a <\/strong>vhodn\u00e9 pro \u010distou vodu (0,6-15 m, 0,5-1% F.S.), radar ovl\u00e1d\u00e1 p\u011bnu, p\u00e1ru a vakuum (do \u00b1 1 mm p\u0159i 80 GHz) a kapacitn\u00ed pot\u0159ebuje vlhkou sondu, ale pracuje s vodiv\u00fdmi a vysokotlak\u00fdmi m\u00e9dii. Tato p\u0159\u00edru\u010dka porovn\u00e1v\u00e1 t\u0159i typy na rozsah, p\u0159esnost, slep\u00e1 z\u00f3na, odolnost p\u011bny a aplikace, pak d\u00e1v\u00e1 t\u0159i kroky-v\u00fdb\u011br metody.<\/p>\n\n\n\n

1. Po\u017eadavky a v\u00fdzvy v oblasti m\u011b\u0159en\u00ed hladiny kapaliny<\/h2>\n\n\n\n

V r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch, jako je chemick\u00fd, ropn\u00fd a potravin\u00e1\u0159sk\u00fd pr\u016fmysl, m\u00e1 p\u0159esn\u00e9 m\u011b\u0159en\u00ed hladiny kapalin z\u00e1sadn\u00ed v\u00fdznam. Nap\u0159\u00edklad v chemick\u00fdch z\u00e1vodech je znalost p\u0159esn\u00e9 hladiny kapalin v n\u00e1dr\u017e\u00edch nezbytn\u00e1 pro zaji\u0161t\u011bn\u00ed spr\u00e1vn\u00fdch sm\u011b\u0161ovac\u00edch pom\u011br\u016f a zabr\u00e1n\u011bn\u00ed p\u0159ete\u010den\u00ed \u010di nedostate\u010dn\u00e9mu napln\u011bn\u00ed. V ropn\u00e9m pr\u016fmyslu je p\u0159esn\u00e9 m\u011b\u0159en\u00ed hladiny ropy ve skladovac\u00edch n\u00e1dr\u017e\u00edch nezbytn\u00e9 pro spr\u00e1vu z\u00e1sob a zaji\u0161t\u011bn\u00ed bezpe\u010dnosti.<\/p>\n\n\n\n

M\u011b\u0159en\u00ed hladiny kapalin v\u0161ak \u010del\u00ed n\u011bkolika v\u00fdzv\u00e1m. R\u016fzn\u00e9 kapaliny maj\u00ed odli\u0161n\u00e9 vlastnosti, jako je viskozita, hustota a vodivost, kter\u00e9 mohou ovlivnit p\u0159esnost m\u011b\u0159ic\u00edch metod. Krom\u011b toho mohou pot\u00ed\u017ee zp\u016fsobovat i drsn\u00e9 podm\u00ednky prost\u0159ed\u00ed, jako jsou vysok\u00e9 teploty, korozivn\u00ed l\u00e1tky a vibrace. Nap\u0159\u00edklad ve vysokoteplotn\u00ed pr\u016fmyslov\u00e9 peci nemus\u00ed b\u00fdt tradi\u010dn\u00ed m\u011b\u0159ic\u00ed metody vhodn\u00e9 kv\u016fli extr\u00e9mn\u00edmu \u017e\u00e1ru. P\u0159esnost m\u011b\u0159en\u00ed m\u016f\u017ee nav\u00edc naru\u0161ovat p\u0159\u00edtomnost p\u011bny nebo usazenin v kapalin\u00e1ch.<\/p>\n\n\n\n

\n\n\n\n

2. Ultrazvukov\u00fd sn\u00edma\u010d hladiny kapaliny<\/h2>\n\n\n\n
\"Ultrazvukov\u00fd<\/figure>\n\n\n\n

2.1 Princip fungov\u00e1n\u00ed a vlastnosti<\/h3>\n\n\n\n

Ultrazvukov\u00e9 sn\u00edma\u010de hladiny kapaliny<\/strong><\/a> pracovat vyza\u0159ov\u00e1n\u00edm ultrazvukov\u00fdch vln v ur\u010dit\u00e9m sm\u011bru. Kdy\u017e tyto vlny naraz\u00ed na povrch kapaliny, jsou odra\u017eeny do senzoru. Senzor pak m\u011b\u0159\u00ed \u010das, kter\u00fd trv\u00e1, ne\u017e vlny p\u0159ejdou na tekut\u00fd povrch a zp\u011bt. Pomoc\u00ed zn\u00e1m\u00e9 rychlosti zvuku ve vzduchu, kter\u00e1 je p\u0159ibli\u017en\u011b 340 metr\u016f za sekundu nebo 0,034 centimetr\u016f za mikrosekundu, lze vypo\u010d\u00edtat vzd\u00e1lenost od \u010didla k tekut\u00e9mu povrchu.<\/p>\n\n\n\n

Tyto senzory maj\u00ed n\u011bkolik pozoruhodn\u00fdch vlastnost\u00ed. Nab\u00edzej\u00ed dobrou p\u0159esnost s \u00fazk\u00fdm paprskem (radarov\u00e9 modely \u0159ady KLD pou\u017e\u00edvaj\u00ed pro porovn\u00e1n\u00ed 8 \u00b0 paprsek) a zvukov\u00fd paprsek z\u016fst\u00e1v\u00e1 \u00fazk\u00fd v rozsahu m\u011b\u0159en\u00ed. Je snadn\u00e9 nainstalovat a dodat stabiln\u00ed dlouhodob\u00e9 \u00fadaje. \u00dadaje jsou stabiln\u00ed, zaji\u0161\u0165uj\u00ed konzistentn\u00ed v\u00fdsledky v pr\u016fb\u011bhu \u010dasu. Nav\u00edc jsou snadno ovladateln\u00e9 a mohou b\u00fdt aplikov\u00e1ny v \u0161irok\u00e9 \u0161k\u00e1le nastaven\u00ed. Nap\u0159\u00edklad pr\u016fmyslov\u00e9 ultrazvukov\u00e9 sn\u00edma\u010de (nap\u0159. s\u00e9rie KUS) pokr\u00fdvaj\u00ed 0,6-5 m na KUS600 a 600-15000 mm na KUS630, s p\u0159esnost\u00ed 0,5-1% pln\u00e9ho rozsahu a rozli\u0161en\u00edm 1 mm na KUS600; slep\u00e1 z\u00f3na je 0,15-0,25 m na KUS550 a a\u017e 0,6 m na KUS630. Jsou tak\u00e9 m\u00e9n\u011b ovlivn\u011bny slune\u010dn\u00edm nebo \u010dern\u00fdm materi\u00e1lem. M\u011bkk\u00e9 materi\u00e1ly, jako je l\u00e1tka, se v\u0161ak mohou t\u011b\u017eko detekovat.<\/p>\n\n\n\n

2.2 Pou\u017eit\u00ed<\/h3>\n\n\n\n

Ultrazvukov\u00fd<\/a><\/strong> Sn\u00edma\u010de hladiny kapaliny se \u0161iroce pou\u017e\u00edvaj\u00ed v nejr\u016fzn\u011bj\u0161\u00edch aplikac\u00edch. Jednou z jejich hlavn\u00edch v\u00fdhod je schopnost bezkontaktn\u00edho m\u011b\u0159en\u00ed hladiny. D\u00edky tomu jsou ide\u00e1ln\u00ed pro situace, kdy by p\u0159\u00edm\u00fd kontakt s kapalinou mohl b\u00fdt nebezpe\u010dn\u00fd nebo nepraktick\u00fd. Nap\u0159\u00edklad v n\u00e1dr\u017e\u00edch na skladov\u00e1n\u00ed chemik\u00e1li\u00ed mohou m\u011b\u0159it hladinu korozivn\u00edch kapalin, ani\u017e by s nimi p\u0159i\u0161ly do styku, \u010d\u00edm\u017e se sni\u017euje riziko po\u0161kozen\u00ed sn\u00edma\u010de a zaji\u0161\u0165uje bezpe\u010dnost obsluhy.<\/p>\n\n\n\n

\u010casto se tak\u00e9 pou\u017e\u00edvaj\u00ed v pr\u016fmyslov\u00fdch procesech, kde je p\u0159esn\u00e9 m\u011b\u0159en\u00ed hladiny z\u00e1sadn\u00ed. V potravin\u00e1\u0159sk\u00fdch z\u00e1vodech mohou sledovat hladinu kapalin v n\u00e1dr\u017e\u00edch, aby zajistily spr\u00e1vn\u00e9 m\u00edch\u00e1n\u00ed a balen\u00ed. V ropn\u00e9m pr\u016fmyslu se mohou pou\u017e\u00edvat k m\u011b\u0159en\u00ed hladiny ropy ve skladovac\u00edch n\u00e1dr\u017e\u00edch pro \u00fa\u010dely \u0159\u00edzen\u00ed z\u00e1sob. Nav\u00edc je lze integrovat do r\u016fzn\u00fdch typ\u016f za\u0159\u00edzen\u00ed, jako jsou \u010derpadla a ventily, aby poskytovaly informace o hladin\u011b v re\u00e1ln\u00e9m \u010dase a \u0159\u00eddily pr\u016ftok kapalin.<\/p>\n\n\n\n

\"Vyu\u017eit\u00ed<\/figure>\n\n\n\n
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3. Radarov\u00fd sn\u00edma\u010d hladiny<\/h2>\n\n\n\n
\"Radarov\u00fd<\/figure>\n\n\n\n

3.1 Anal\u00fdza v\u00fdhod<\/h3>\n\n\n\n

Radarov\u00e9 sn\u00edma\u010de hladiny kapaliny<\/a><\/strong> nab\u00edz\u00ed n\u011bkolik r\u016fzn\u00fdch v\u00fdhod v m\u011b\u0159en\u00ed hladiny kapaliny. Jednou z kl\u00ed\u010dov\u00fdch v\u00fdhod je jejich extr\u00e9mn\u011b vysok\u00e1 p\u0159esnost. Mohou poskytnout m\u011b\u0159en\u00ed \u00b1 1 mm na modelech 80 GHz, jako je KLD803 (KLD801 je specifikov\u00e1n v \u00b1 2 mm), co\u017e je ide\u00e1ln\u00ed pro aplikace, kde je p\u0159esn\u00e9 ovl\u00e1d\u00e1n\u00ed hladiny kritick\u00e9. Nap\u0159\u00edklad ve farmaceutick\u00e9m pr\u016fmyslu, kde je p\u0159esn\u00e9 d\u00e1vkov\u00e1n\u00ed tekutin nezbytn\u00e9 pro v\u00fdrobu kvalitn\u00edch l\u00e9k\u016f, mohou radarov\u00e9 senzory zajistit p\u0159esn\u00e9 m\u011b\u0159en\u00ed.<\/p>\n\n\n\n

Dal\u0161\u00ed v\u00fdhodou je jejich odolnost v\u016f\u010di vliv\u016fm okoln\u00edho prost\u0159ed\u00ed. Na rozd\u00edl od n\u011bkter\u00fdch jin\u00fdch m\u011b\u0159ic\u00edch metod nejsou radarov\u00e9 senzory ovliv\u0148ov\u00e1ny zm\u011bnami teploty, tlaku ani vlhkosti. Mohou spolehliv\u011b fungovat v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch, jako jsou pr\u016fmyslov\u00e9 procesy s vysok\u00fdmi teplotami nebo prostory s korozivn\u00edmi l\u00e1tkami. D\u00edky tomu jsou vhodn\u00e9 pro \u0161irokou \u0161k\u00e1lu pr\u016fmyslov\u00fdch odv\u011btv\u00ed, v\u010detn\u011b chemick\u00e9ho, petrochemick\u00e9ho a energetick\u00e9ho pr\u016fmyslu.<\/p>\n\n\n\n

Radarov\u00e9 senzory nav\u00edc disponuj\u00ed velk\u00fdm detek\u010dn\u00edm dosahem. V z\u00e1vislosti na konkr\u00e9tn\u00edm modelu dok\u00e1\u017eou m\u011b\u0159it hladiny kapalin ze vzd\u00e1lenosti n\u011bkolika metr\u016f a\u017e po des\u00edtky metr\u016f. To umo\u017e\u0148uje d\u00e1lkov\u00e9 monitorov\u00e1n\u00ed a \u0159\u00edzen\u00ed, \u010d\u00edm\u017e se sni\u017euje nutnost vstupu person\u00e1lu do potenci\u00e1ln\u011b nebezpe\u010dn\u00fdch oblast\u00ed.<\/p>\n\n\n\n

3.2 Oblasti pou\u017eit\u00ed<\/h3>\n\n\n\n

Radarov\u00e9 sn\u00edma\u010de hladiny najdou \u0161irok\u00e9 uplatn\u011bn\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch. V chemick\u00e9m pr\u016fmyslu se pou\u017e\u00edvaj\u00ed k m\u011b\u0159en\u00ed hladiny nebezpe\u010dn\u00fdch chemik\u00e1li\u00ed ve velk\u00fdch skladovac\u00edch n\u00e1dr\u017e\u00edch. D\u00edky sv\u00e9 odolnosti v\u016f\u010di korozivn\u00edm prost\u0159ed\u00edm a schopnosti poskytovat p\u0159esn\u00e1 m\u011b\u0159en\u00ed jsou v tomto odv\u011btv\u00ed preferovanou volbou.<\/p>\n\n\n\n

V ropn\u00e9m a plyn\u00e1rensk\u00e9m pr\u016fmyslu se radarov\u00e9 senzory pou\u017e\u00edvaj\u00ed ke sledov\u00e1n\u00ed hladiny surov\u00e9 ropy a rafinovan\u00fdch produkt\u016f ve skladovac\u00edch n\u00e1dr\u017e\u00edch. Dok\u00e1\u017eou p\u0159esn\u011b m\u011b\u0159it hladinu i v p\u0159\u00edtomnosti par a p\u011bny, \u010d\u00edm\u017e zaji\u0161\u0165uj\u00ed spolehlivou spr\u00e1vu z\u00e1sob.<\/p>\n\n\n\n

V energetick\u00e9m pr\u016fmyslu se radarov\u00e9 senzory pou\u017e\u00edvaj\u00ed k m\u011b\u0159en\u00ed hladiny vody v kotl\u00edch a chladic\u00edch v\u011b\u017e\u00edch. Jejich vysok\u00e1 p\u0159esnost a odolnost v\u016f\u010di vliv\u016fm okoln\u00edho prost\u0159ed\u00ed zaji\u0161\u0165uj\u00ed efektivn\u00ed provoz elektr\u00e1ren.<\/p>\n\n\n\n

Krom\u011b toho se radarov\u00e9 senzory pou\u017e\u00edvaj\u00ed tak\u00e9 v \u010dist\u00edrn\u00e1ch vody, potravin\u00e1\u0159sk\u00e9m a n\u00e1pojov\u00e9m pr\u016fmyslu a v mnoha dal\u0161\u00edch odv\u011btv\u00edch, kde je p\u0159esn\u00e9 m\u011b\u0159en\u00ed hladiny kapalin nezbytn\u00e9 pro kontrolu a bezpe\u010dnost proces\u016f.<\/p>\n\n\n\n

\"Pou\u017eit\u00ed<\/figure>\n\n\n\n
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4. Kapacitn\u00ed sn\u00edma\u010d hladiny<\/h2>\n\n\n\n
\"Kapacitn\u00ed<\/figure>\n\n\n\n

4.1 Z\u00e1sady a v\u00fdhody<\/h3>\n\n\n\n

Kapacitn\u00ed sn\u00edma\u010de hladiny<\/a><\/strong> funguj\u00ed na principu detekce rozd\u00edlu v elektrick\u00e9m n\u00e1boji mezi vodou a vzduchem. Je-li kondenz\u00e1tor vytvo\u0159en s kapalinou jako jedn\u00edm z dielektrick\u00fdch materi\u00e1l\u016f, kapacita se m\u011bn\u00ed v z\u00e1vislosti na hladin\u011b kapaliny. Jak se hladina kapaliny m\u011bn\u00ed, m\u011bn\u00ed se odpov\u00eddaj\u00edc\u00edm zp\u016fsobem i hodnota kapacity, kterou lze zm\u011b\u0159it a pou\u017e\u00edt k ur\u010den\u00ed hladiny kapaliny.<\/p>\n\n\n\n

Tyto senzory nab\u00edzej\u00ed n\u011bkolik v\u00fdhod. Za prv\u00e9 se vyzna\u010duj\u00ed vysokou p\u0159esnost\u00ed. Schopnost p\u0159esn\u011b m\u011b\u0159it zm\u011bnu kapacity umo\u017e\u0148uje p\u0159esn\u00e9 stanoven\u00ed hladiny kapaliny. Za druh\u00e9 se snadno instaluj\u00ed. Lze je integrovat do r\u016fzn\u00fdch syst\u00e9m\u016f bez slo\u017eit\u00fdch postup\u016f. Za t\u0159et\u00ed na n\u011b nemaj\u00ed vliv vlastnosti kapaliny, jako je viskozita, hustota nebo vodivost. D\u00edky tomu jsou vhodn\u00e9 pro \u0161irokou \u0161k\u00e1lu kapalin. Citlivost kapacitn\u00edch sn\u00edma\u010d\u016f hladiny lze nav\u00edc nastavit podle konkr\u00e9tn\u00edch po\u017eadavk\u016f, co\u017e zaji\u0161\u0165uje flexibilitu v r\u016fzn\u00fdch aplikac\u00edch.<\/p>\n\n\n\n

4.2 Praktick\u00e9 vyu\u017eit\u00ed<\/h3>\n\n\n\n

\u010cidla s kapacitou se pou\u017e\u00edvaj\u00ed tam, kde je vlhk\u00e1 sonda p\u0159ijateln\u00e1, a m\u00e9dium je vodiv\u00e9 nebo pod tlakem. V ropn\u00fdch cisternov\u00fdch vozech m\u011b\u0159\u00ed sonda t\u0159\u00eddy KSLV605- hladinu paliva p\u0159\u00edmo v n\u00e1dr\u017ei; v chemick\u00fdch d\u00e1vkovac\u00edch a reak\u010dn\u00edch n\u00e1dob\u00e1ch se stejn\u00fd princip vztahuje na m\u00e9dia p\u0159i tlaku do 32 MPa a teplot\u011b sondy do 250 \u00b0 C; v sanit\u00e1rn\u00edch potravinov\u00fdch a n\u00e1pojov\u00fdch link\u00e1ch sleduj\u00ed hygienick\u00e9 verze hladinu v\u00fdrobku v procesn\u00edch n\u00e1dr\u017e\u00edch.<\/p>\n\n\n\n

V oh\u0159\u00edva\u010d\u00edch vody pom\u00e1haj\u00ed kapacitn\u00ed sn\u00edma\u010de hladiny udr\u017eovat optim\u00e1ln\u00ed hladinu vody pro \u00fa\u010dinn\u00e9 oh\u0159ev. D\u00edky p\u0159esn\u00e9mu m\u011b\u0159en\u00ed hladiny vody m\u016f\u017ee oh\u0159\u00edva\u010d pracovat efektivn\u011bji a bezpe\u010dn\u011bji, \u010d\u00edm\u017e se p\u0159edch\u00e1z\u00ed p\u0159ete\u010den\u00ed nebo po\u0161kozen\u00ed v d\u016fsledku n\u00edzk\u00e9 hladiny vody.<\/p>\n\n\n\n

V k\u00e1vovarech hraj\u00ed kapacitn\u00ed sn\u00edma\u010de hladiny kl\u00ed\u010dovou roli p\u0159i zaji\u0161\u0165ov\u00e1n\u00ed spr\u00e1vn\u00e9ho mno\u017estv\u00ed vody pou\u017eit\u00e9ho k p\u0159\u00edprav\u011b k\u00e1vy. To p\u0159isp\u00edv\u00e1 k dosa\u017een\u00ed st\u00e1l\u00e9 kvality k\u00e1vy a zabra\u0148uje pl\u00fdtv\u00e1n\u00ed vodou i k\u00e1vovou sedlinou.<\/p>\n\n\n\n

Krom\u011b t\u011bchto aplikac\u00ed se kapacitn\u00ed sn\u00edma\u010de hladiny pou\u017e\u00edvaj\u00ed tak\u00e9 v mnoha dal\u0161\u00edch dom\u00e1c\u00edch a pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00edch, kde je vy\u017eadov\u00e1no p\u0159esn\u00e9 m\u011b\u0159en\u00ed hladiny kapaliny. Nap\u0159\u00edklad v pr\u016fmyslov\u00fdch procesech, kde je p\u0159esn\u00e1 regulace hladiny kapaliny nezbytn\u00e1 pro zaji\u0161t\u011bn\u00ed kvality a bezpe\u010dnosti, p\u0159edstavuj\u00ed kapacitn\u00ed sn\u00edma\u010de hladiny spolehliv\u00e9 \u0159e\u0161en\u00ed.<\/p>\n\n\n\n

\"Pou\u017eit\u00ed<\/figure>\n\n\n\n
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Rychl\u00e9 srovn\u00e1n\u00ed: Ultrazvukov\u00e9 vs Radar vs Capacitive<\/h2>\n\n\n\n
Funkce<\/th>Ultrazvukov\u00e9 (KUS s\u00e9rie)<\/th>Radar 80 GHz (s\u00e9rie KLD)<\/th>Kapacita (\u0159ady KSLV)<\/th><\/tr><\/thead>
Princip m\u011b\u0159en\u00ed<\/td>Zvukov\u00e1 doba letu<\/td>Elektromagnetick\u00e1 FMCW<\/td>Zm\u011bna kapacity<\/td><\/tr>
Typick\u00fd rozsah m\u011b\u0159en\u00ed<\/td>0, 6- 15 m (KUS600 0, 6- 5 m, KUS630 0, 6- 15 m)<\/td>0, 1- 120 m (KLD801 \/ 803)<\/td>100- 3000 mm (KSLV605)<\/td><\/tr>
Typick\u00e1 p\u0159esnost<\/td>0, 5-1% F.S. (1 mm rozli\u0161en\u00ed na KUS600)<\/td>\u00b1 1 mm (KLD803), \u00b1 2 mm (KLD801)<\/td>\u2264 0, 1% FS \/ rok dlouhodob\u00e1 stabilita<\/td><\/tr>
Z\u00f3na pro nevidom\u00e9 \/ minim\u00e1ln\u00ed vzd\u00e1lenost<\/td>0,15- 0,25 m (KUS550), do 0,6 m (KUS630)<\/td>0, 1 m<\/td>Z\u00e1vis\u00ed na d\u00e9lce sondy<\/td><\/tr>
P\u011bna \/ p\u00e1ry<\/td>Chud\u00fd - puls je absorbov\u00e1n nebo rozpt\u00fdlen<\/td>Dobr\u00fd - imunn\u00ed v\u016f\u010di p\u00e1\u0159e; pouze velmi hust\u00e1 p\u011bna zeslabuje<\/td>Dobr\u00e9 (vlhk\u00e1 sonda)<\/td><\/tr>
Vakuov\u00e1 slu\u017eba<\/td>Ne - zvukov\u00e1 cesta pot\u0159ebuje plynov\u00e9 m\u00e9dium<\/td>Ano<\/td>Ano<\/td><\/tr>
Vodiv\u00e1 m\u00e9dia<\/td>OK (bez kontaktu)<\/td>OK (low-\u03b5 m\u00e9dia mohou b\u00fdt obt\u00ed\u017en\u00e9)<\/td>V\u00fdborn\u00e9<\/td><\/tr>
Aplikace pro bestfit<\/td>\u010cist\u00e1 voda, otev\u0159en\u00e9 kan\u00e1ly, n\u00e1dr\u017ee<\/td>Chemick\u00e9, petrochemick\u00e9 a parov\u00e9 \/ vakuov\u00e9 slu\u017eby<\/td>Ropn\u00e9 cisterny, vodiv\u00e9 kapaliny, vysok\u00fd tlak<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Pou\u017eijte tuto trojkrokovou cestu rozhodnut\u00ed m\u00edsto porovn\u00e1n\u00ed funkc\u00ed:<\/p>\n\n\n\n

Krok<\/th>Ot\u00e1zka k zodpov\u011bzen\u00ed<\/th>Tak si vyberte.<\/th><\/tr><\/thead>
1. M\u00e9dia a \u017eivotn\u00ed prost\u0159ed\u00ed<\/td>Je povrch p\u011bn\u011bn\u00ed, vypa\u0159ov\u00e1n\u00ed nebo ve vakuu? Je kapalina vodiv\u00e1, \u017e\u00edrav\u00e1 nebo hygienick\u00e1?<\/td>P\u011bna \/ p\u00e1ra \/ vakuum \u2192 radar (\u0159ady KLD). Vodiv\u00fd nebo vysokotlak\u00fd, p\u0159ijateln\u00e1 sonda \u2192 kapacitn\u00ed (\u0159ady KSLV). \u010cist\u00fd, st\u00e1le povrch \u2192 ultrazvukov\u00fd (KUS s\u00e9rie)<\/td><\/tr>
2. Rozsah a p\u0159esnost<\/td>Jak hlubok\u00e1 je n\u00e1dr\u017e a jakou p\u0159esnost tento proces pot\u0159ebuje?<\/td>Pod 0,6 m \u2192 kapacitn\u00ed nebo radar (zkontrolujte oblast zaslepen\u00ed). 0,6-15 m v \u010dist\u00e9 vod\u011b \u2192 ultrazvukov\u00e9 KUS600 \/ KUS630. 0,1-120 m nebo \u00b1 1 mm \u2192 radar KLD801 \/ KLD803<\/td><\/tr>
3. Instalace a sign\u00e1l<\/td>M\u016f\u017eete se p\u0159ipojit shora a jak se \u010dten\u00ed dostane k \u0159\u00eddic\u00edmu syst\u00e9mu?<\/td>Nekontaktn\u00ed (ultrazvukov\u00e9 nebo radarov\u00e9) za\u0159\u00edzen\u00ed namontovan\u00e9 na vrchn\u00ed \u010d\u00e1sti se vyh\u00fdb\u00e1 mokr\u00fdm sou\u010d\u00e1stem; kapacita pot\u0159ebuje sondu a referen\u010dn\u00ed st\u011bnu. V\u0161echny t\u0159i nab\u00eddky 4-20 mA a RS485 Modbus v\u00fdstup<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

5. Komplexn\u00ed srovn\u00e1n\u00ed a z\u00e1v\u011br<\/h2>\n\n\n\n

5.1 Srovn\u00e1vac\u00ed tabulka<\/h3>\n\n\n\n
Typ<\/strong><\/td>Princip fungov\u00e1n\u00ed<\/strong><\/td>V\u00fdhody<\/strong><\/td>Nev\u00fdhody<\/strong><\/td>Typick\u00e9 sc\u00e9n\u00e1\u0159e pou\u017eit\u00ed<\/strong><\/td><\/tr>
Ultrazvukov\u00fd<\/strong><\/td>Odraz ultrazvukov\u00fdch vln<\/bdo><\/td>1. Mal\u00fd m\u011b\u0159ic\u00ed \u00fahel a vysok\u00e1 p\u0159esnost
2. Stabiln\u00ed hodnoty a dobr\u00e1 opakovatelnost
3. Snadn\u00e9 pou\u017eit\u00ed a \u0161irok\u00fd detek\u010dn\u00ed rozsah
4. M\u00e9n\u011b citliv\u00e9 na slune\u010dn\u00ed z\u00e1\u0159en\u00ed a \u010dern\u00e9 materi\u00e1ly
5. Je mo\u017en\u00e9 prov\u00e1d\u011bt bezkontaktn\u00ed m\u011b\u0159en\u00ed<\/td>		1. Citliv\u00fd na \u017eivotn\u00ed prost\u0159ed\u00ed
2. Omezen\u00fd m\u011b\u0159ic\u00ed rozsah<\/td>		\u00dapravny vody, potravin\u00e1\u0159sk\u00fd a n\u00e1pojov\u00fd pr\u016fmysl<\/td><\/tr>
Radar<\/strong><\/td>Elektromagnetick\u00fd pulzn\u00ed odraz<\/td>1. Mimo\u0159\u00e1dn\u011b vysok\u00e1 p\u0159esnost, a\u017e \u00b11 mm
2. Nen\u00ed ovlivn\u011bno faktory prost\u0159ed\u00ed
3. Velk\u00fd dosah detekce
4. Mo\u017enost d\u00e1lkov\u00e9ho monitorov\u00e1n\u00ed a ovl\u00e1d\u00e1n\u00ed<\/td>		1. Vy\u0161\u0161\u00ed intenzita instalace (p\u0159\u00edruba, zam\u011b\u0159en\u00ed)
2. Konfigurace pot\u0159ebn\u00e1 pro low-\u03b5 m\u00e9dia<\/td>		Petrochemick\u00fd pr\u016fmysl, vysok\u00e1 v\u011b\u017eov\u00e1 za\u0159\u00edzen\u00ed<\/td><\/tr>
Kapacitn\u00ed<\/strong><\/td>Zm\u011bna kapacity<\/td>1. Vysok\u00e1 p\u0159esnost
2. Snadn\u00e1 instalace
3. Nen\u00ed ovlivn\u011bno vlastnostmi kapaliny
4. Nastaviteln\u00e1 citlivost<\/td>		1. Citlivost na vlastnosti kapaliny
2. Kr\u00e1tk\u00fd m\u011b\u0159ic\u00ed rozsah<\/td>		N\u00e1doby pro chemick\u00e9 reakce, ropn\u00e9 tankery<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

5.2 Nejlep\u0161\u00ed volba pro r\u016fzn\u00e9 situace<\/h3>\n\n\n\n

1. Ultrazvukov\u00e9 sn\u00edma\u010de \u00farovn\u011b m\u016f\u017ee b\u00fdt dobrou volbou, kdy\u017e n\u00e1klady jsou citliv\u00e9, prost\u0159ed\u00ed m\u011b\u0159en\u00ed je relativn\u011b m\u00edrn\u00e9, a po\u017eadavky na p\u0159esnost nejsou nijak zvl\u00e1\u0161\u0165 vysok\u00e9. Nap\u0159\u00edklad n\u011bkter\u00e9 mal\u00e9 z\u00e1vody na zpracov\u00e1n\u00ed potravin mus\u00ed sledovat skladovac\u00ed objem kapaln\u00fdch surovin. Ultrazvukov\u00e9 sn\u00edma\u010de \u00farovn\u011b mohou spl\u0148ovat z\u00e1kladn\u00ed pot\u0159eby m\u011b\u0159en\u00ed. Z\u00e1rove\u0148 se snadno instaluj\u00ed a pou\u017e\u00edvaj\u00ed s jednodu\u0161\u0161\u00edm upevn\u011bn\u00edm ne\u017e p\u0159\u00edrubov\u00fd radar.<\/p>\n\n\n\n

2. Pro sc\u00e9n\u00e1\u0159e, kter\u00e9 vy\u017eaduj\u00ed vysoce p\u0159esn\u00e9 m\u011b\u0159en\u00ed a tvrd\u00e1 prost\u0159ed\u00ed, jako jsou velk\u00e9 z\u00e1sobn\u00edky v chemick\u00e9m, ropn\u00e9m a jin\u00e9m pr\u016fmyslu, jsou radarov\u00e9 sn\u00edma\u010de lep\u0161\u00ed. Mohou pracovat stabiln\u011b v prost\u0159ed\u00ed s vysokou teplotou, vysok\u00fdm tlakem a korozivn\u00edm prost\u0159ed\u00edm a poskytovat extr\u00e9mn\u011b vysokou p\u0159esnost m\u011b\u0159en\u00ed, aby byla zaji\u0161t\u011bna p\u0159esnost \u0159\u00edzen\u00ed z\u00e1sob.<\/p>\n\n\n\n

3. Schopn\u00e9 \u010didla \u00farovn\u011b funguj\u00ed dob\u0159e, kdy\u017e je nutn\u00e1 jednoduch\u00e1 instalace, nejsou ovliv\u0148ov\u00e1na vlastnostmi kapaliny a maj\u00ed ur\u010dit\u00e9 po\u017eadavky na p\u0159esnost. Nap\u0159\u00edklad u n\u011bkter\u00fdch spot\u0159ebi\u010d\u016f pro dom\u00e1cnost a mal\u00fdch pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00ed mohou kapacitn\u00ed sn\u00edma\u010de p\u0159esn\u011b m\u011b\u0159it hladiny kapalin a snadno se integruj\u00ed do syst\u00e9mu.<\/p>\n\n\n\n

Souhrnn\u011b \u0159e\u010deno, tyto t\u0159i technologie nesout\u011b\u017e\u00ed o stejnou povinnost: ultrazvukov\u00e9 v\u00fdhry na m\u011b\u0159en\u00ed nekontaktn\u00edch hodnot \u010dist\u00e9 vody, radarov\u00e9 v\u00fdhry tam, kde p\u0159evl\u00e1d\u00e1 p\u011bna, p\u00e1ra, vakuum nebo velk\u00fd rozsah, a kapacitn\u00ed v\u00fdhry s vodiv\u00fdmi nebo vysokotlak\u00fdmi m\u00e9dii. Vyberte si pomoc\u00ed m\u00e9di\u00ed, prost\u0159ed\u00ed a po\u017eadovan\u00e9 p\u0159esnosti - ne jedin\u00fdm \u010d\u00edslem. Pro nez\u00e1visl\u00e9 technick\u00e9 srovn\u00e1n\u00ed dvou nekontaktn\u00edch technologi\u00ed viz Endress + Hauser & # 8217; s p\u0159ehled m\u011b\u0159en\u00ed hladiny radaru<\/a>, a pro cel\u00fd ultrazvukov\u00fd rozsah, viz na\u0161e ultrazvukov\u00e9 sn\u00edma\u010de hladiny<\/a>.<\/p>\n\n\n\n

Pot\u0159ebujete doporu\u010den\u00ed pro tank?<\/strong> Porovnejte ultrazvukov\u00e9 sn\u00edma\u010de hladiny<\/a>, Radarov\u00e9 m\u011b\u0159i\u010de 80 GHz<\/a> a kapacitn\u00ed vys\u00edla\u010de<\/a>, nebo velikost kapacitn\u00ed sondy s na\u0161\u00edm Capacity Level Vys\u00edla\u010d V\u00fdb\u011br kalkul\u00e1tor.<\/p>\n\n\n\n

\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>\n\n\n\n
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<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

Q: Ultrazvukov\u00fd nebo radar pro chemick\u00e9 n\u00e1dr\u017ee?<\/strong><\/p>\n<\/div>\n\n\n\n

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<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

A:<\/strong> Radar - zejm\u00e9na 80 GHz - je bezpe\u010dn\u011bj\u0161\u00ed volbou pro chemick\u00e9 n\u00e1dr\u017ee s p\u011bnou, p\u00e1rou, vysokou teplotou nebo vakuem, proto\u017ee elektromagnetick\u00fd sign\u00e1l nez\u00e1vis\u00ed na cest\u011b vzduchu. Ultrazvukov\u00e9 pot\u0159ebuje stabiln\u00ed plynov\u00e9 m\u00e9dium a povrch bez p\u011bny.<\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

Q: Mohou radarov\u00e9 senzory m\u011b\u0159it p\u011bnu?<\/strong><\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

A:<\/strong> Ano. Radar vyu\u017e\u00edv\u00e1 elektromagnetick\u00e9 vlny a je mnohem odoln\u011bj\u0161\u00ed v\u016f\u010di p\u011bn\u011b ne\u017e ultrazvukov\u00e9; sign\u00e1l m\u016f\u017ee oslabit pouze velmi siln\u00e1, hust\u00e1 p\u011bna. V t\u011bchto p\u0159\u00edpadech je dal\u0161\u00edm krokem vodiv\u00fd radar (\u0159ada KLD70x).<\/p>\n<\/div>\n\n\n\n

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<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

Q: Je kapacitn\u00ed senzor vhodn\u00fd pro vodiv\u00e9 kapaliny?<\/strong><\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

A:<\/strong> Ano. Kompatibiln\u00ed sn\u00edma\u010de \u00farovn\u011b jsou zvl\u00e1\u0161t\u011b \u00fa\u010dinn\u00e9 pro vodiv\u00e9 kapaliny a mohou tak\u00e9 pracovat s nevodiv\u00fdmi m\u00e9dii v z\u00e1vislosti na konstrukci sondy. Pot\u0159ebuj\u00ed vlhkou sondu, tak\u017ee nejd\u0159\u00edv zkontrolujte kompatibilitu materi\u00e1lu.<\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

Ot\u00e1zka: Kter\u00fd senzor funguje ve vakuu nebo vysok\u00e9m tlaku?<\/strong><\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

A:<\/strong> Radar a kapacitn\u00ed senzory. Kondenza\u010dn\u00ed \u0159ada KSLV pokr\u00fdv\u00e1 procesn\u00ed tlaky od -0,1 do 32 MPa, zat\u00edmco ultrazvukov\u00e9 m\u011b\u0159en\u00ed pot\u0159ebuje plynov\u00fd prostor p\u0159i stabiln\u00edm tlaku.<\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

Ot\u00e1zka: Kdy je ultrazvukov\u00fd lep\u0161\u00ed volba nad radarem?<\/strong><\/p>\n<\/div>\n\n\n\n

\n\t\t\t\t
<\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n

A:<\/strong> Pro \u010dist\u00e9, tich\u00e1 voda v otev\u0159en\u00fdch kan\u00e1lech, sumps, tanky, a n\u00e1dr\u017ee do 15 m, kde non-kontaktn\u00ed ultrazvukov\u00e9 senzory, jako je KUS630 d\u00e1t 0,5-1% F.S. p\u0159esnost v jednodu\u0161\u0161\u00ed instalaci ne\u017e p\u0159\u00edrubov\u00fd radar.<\/p>\n<\/div>\n<\/div>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Ultrasonic, radar, and capacitive sensors all measure level, but they suit different liquids and environments: ultrasonic is non-contact and suitable for clean water (0.6\u201315 m, 0.5\u20131% F.S.), radar handles foam, vapour, and vacuum (up to \u00b11 mm at 80 GHz), and capacitive needs a wetted probe but works with conductive and high-pressure media. This guide […]<\/p>\n","protected":false},"author":6,"featured_media":16837,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[114,276,319],"tags":[224,238,237],"class_list":["post-16343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrasonic-sensor","category-capacitive-level-sensor","category-radar-level-meter","tag-capacitive-level-sensor","tag-radar","tag-ultrasonic"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/posts\/16343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/comments?post=16343"}],"version-history":[{"count":0,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/posts\/16343\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/media\/16837"}],"wp:attachment":[{"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/media?parent=16343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/categories?post=16343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kcsensor.com\/cs\/wp-json\/wp\/v2\/tags?post=16343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}