{"id":2165,"date":"2023-04-07T21:33:05","date_gmt":"2023-04-07T21:33:05","guid":{"rendered":"https:\/\/vibromera.eu\/?p=2165"},"modified":"2026-07-03T10:37:06","modified_gmt":"2026-07-03T10:37:06","slug":"measurement-of-relative-rotor-vibration-using-non-contact-linear-displacement-sensors","status":"publish","type":"post","link":"https:\/\/vibromera.eu\/hr\/example\/measurement-of-relative-rotor-vibration-using-non-contact-linear-displacement-sensors\/","title":{"rendered":"Mjerenje relativne vibracije rotora pomo\u0107u beskontaktnih senzora linearnog pomaka."},"content":{"rendered":"<h1>Mjerenje relativne vibracije rotora pomo\u0107u beskontaktnih senzora linearnog pomaka<\/h1>\n<p>S <a href=\"https:\/\/vibromera.eu\/hr\/proizvod\/balanset-1\/\">Balanset-1A<\/a> Mo\u017eete izmjeriti relativno <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/vibration\/\">vibracija<\/a> od <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/rotor\/\">rotor<\/a> koriste\u0107i nekontaktne linearne enkodere.<\/p>\n<h2>1.1 Odabir vrste senzora i postavki<\/h2>\n<p>Ovisno o zadatku, za mjerenja se mogu koristiti senzori vibracija ili senzori pomaka. Za odabir vrste senzora potrebno je na plo\u010di \u201cSensor type\u201d (na dnu glavnog prozora) staviti kva\u010dicu u polje \u201cVibro\u201d ili \u201cLinear\u201d.<\/p>\n<div id=\"attachment_2166\" style=\"width: 446px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2166\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image002.webp\" alt=\"Slika 1. Glavni radni prozor programa Balanset.\" width=\"436\" height=\"407\" class=\"size-full wp-image-2166\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image002.webp 436w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image002-300x280.webp 300w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\" \/><p id=\"caption-attachment-2166\" class=\"wp-caption-text\">Slika 1. Glavni radni prozor programa Balanset.T<\/p><\/div>\n<p>Before starting the measurement it is necessary to make sure that the conversion coefficients of the sensors are set correctly. For this purpose press the button \u201cF4-Settings\u201d in the main working window of the program (see Fig. 1) and go to the settings window designed for entering conversion coefficients (see Fig. 2).<\/p>\n<p>U radnom prozoru prikazanom na slici 2 u odgovaraju\u0107a polja treba unijeti pretvorbene koeficijente linearnog i vibracijskog senzora. Ti su koeficijenti navedeni u tehni\u010dkoj dokumentaciji instrumenta. Obi\u010dno ih nije potrebno mijenjati.<\/p>\n<p>Za linearne <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/displacement-probe\/\">pomak<\/a> Za senzore kori\u0161tene u komplektu instrumenta Balanset-1A, pretvorbeni koeficijenti su redom jednaki:<\/p>\n<ul>\n<li>Kprl1= 0,94 mV\/\u03bcm (konverzijski koeficijent senzora 1. kanala);<\/li>\n<li>Kprl2 = 0,94 mV\/\u03bcm (konverzijski koeficijent senzora drugog kanala)<\/li>\n<\/ul>\n<p>For proper operation, the linear encoder must be installed at a certain distance from the surface of the object of measurement. The nominal clearance between the surface and the end of the sensor is 3.5 mm. In this case there is a constant voltage of 2.48 volts at the sensor output. This voltage will be shown in the fields \u201cChannel1\u201d and \u201cChannel2\u201d for the first and second channels respectively.<\/p>\n<p>To compensate it you must press the button \u201cRemove DC\u201d. A small residual offset will not interfere with the measurement.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_2167\" style=\"width: 484px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2167\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image004.webp\" alt=\"Slika 2. Radni prozor za unos koeficijenata pretvorbe i odabir vrste kori\u0161tenih senzora\" width=\"474\" height=\"441\" class=\"size-full wp-image-2167\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image004.webp 474w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image004-300x279.webp 300w\" sizes=\"auto, (max-width: 474px) 100vw, 474px\" \/><p id=\"caption-attachment-2167\" class=\"wp-caption-text\">Slika 2. Radni prozor za unos koeficijenata pretvorbe i odabir vrste kori\u0161tenih senzora<\/p><\/div>\n<p>&nbsp;<\/p>\n<p><strong>Pa\u017enja!<\/strong> Navedeni nominalni zazori i pretvorbeni faktori linearnog enkodera odnose se na rotore od \u010delika. Za rotore od drugih metala (bakra, bronce, aluminija) nominalni zazor i koeficijenti pretvorbe senzora moraju se eksperimentalno odrediti od strane korisnika provo\u0111enjem kalibracije.<\/p>\n<p>To save the changed parameters press \u201cOK\u201d button. The new parameters will be saved in a file and used for further measurements.<\/p>\n<h2>1.2 Mjerenje radijalnog odskoka rotora<\/h2>\n<p>Radijalno odstupanje rotora mo\u017ee se mjeriti beskontaktnim sondama <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/proximity-probe\/\">sonde za blizinu<\/a> u dvije ravnine prema shemi prikazanoj na slici 3. Kako bi se izmjerila i prikazala vremenska funkcija i spektar radijalnog odstupanja rotora, po potrebi je potrebno provesti niz pripremnih radnji, uklju\u010duju\u0107i:<\/p>\n<ul>\n<li>\u2013 select diametrical sections of the rotor, in which the measurements will be carried out;<\/li>\n<li>postaviti nekontaktne senzore linearnog pomaka 5 i 6 i <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/phase\/\">faza<\/a> senzor faznog kuta 7 na postolju stroja pomo\u0107u posebnih ure\u0111aja (npr. magnetskih stativa);<\/li>\n<li>\u2013 connect proximity sensors of linear motion to connectors X1 and X2, and phase angle sensor to connector X3 of the measuring unit;<\/li>\n<li>\u2013 set a nominal measuring gap \u2206 between the rotor surface and the sensing element for each linear encoder (for the rotor made of steel \u2206 = 3.5 mm);<\/li>\n<li>\u2013 place on the rotor the reflective mark required for triggering for the phase angle sensor 7 and check the sensor triggering;<\/li>\n<li>Pove\u017eite mjernu jedinicu s ra\u010dunalom.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<div id=\"attachment_2168\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2168\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image006.webp\" alt=\"Slika 3. Mjerenje radijalnog odstupanja rotora\" width=\"500\" height=\"308\" class=\"size-full wp-image-2168\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image006.webp 500w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image006-300x185.webp 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-2168\" class=\"wp-caption-text\">Slika 3. Mjerenje radijalnog odstupanja rotora<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>If you press the button \u201cF8 \u2013 Charts\u201d in the main working window (see Fig. 1), the computer display shows the working window \u201cGraphs\u201d (see Fig. 5), designed to build different kinds of graphs of radial run-out of the rotor.<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_2169\" style=\"width: 656px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2169\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image010.webp\" alt=\"Sl. 5. Radni prozor na\u010dina rada &quot;Grafikoni&quot;\" width=\"646\" height=\"462\" class=\"size-full wp-image-2169\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image010.webp 646w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image010-600x429.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image010-300x215.webp 300w\" sizes=\"auto, (max-width: 646px) 100vw, 646px\" \/><p id=\"caption-attachment-2169\" class=\"wp-caption-text\">Fig. 5. The working window of the \u201cCharts\u201d mode<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>Gumbi u ovom prozoru izra\u0111uju sljede\u0107e grafikone:<\/p>\n<ul>\n<li>When you press the \u201cBroadband vibration\u201d button in this window, the time function of the rotor radial runout is displayed.<\/li>\n<li>If the \u201cRotation frequency vibration\u201d button is pressed, the time function of the reciprocal component of the rotor radial runout is displayed.<\/li>\n<li>If you press the button \u201cHarmonics (1\/rev)\u201d, the display will show a decomposition graph of the rotor runout into a harmonic series. The first harmonic corresponds to the value of vibration at the reverse rotor frequency (1x), the second one \u2013 at the double frequency (2x), etc.<\/li>\n<li>By pressing the button \u201cSpectrum (Hz)\u201d the display shows the spectrum of the radial run-out of the rotor.<\/li>\n<li>By pressing the button \u201cOrbit\u201d the graph of rotor orbit (precession) is displayed.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>1.3 Izgradnja grafa orbite rotora<\/h2>\n<p>Konstrukcija grafa orbite rotora mo\u017ee se izvesti prema shemi prikazanoj na slici 6.<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_2170\" style=\"width: 679px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2170\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image016.gif\" alt=\"Sl. 6. Shema mjerenja orbite rotora 1a \u2013 rotor (pogled s kraja); 1b \u2013 rotor (pogled s boka); 2, 3 \u2013 bekontaktni senzori; 4 \u2013 reflektiraju\u0107i znak senzora faznog kuta.\" width=\"669\" height=\"296\" class=\"size-full wp-image-2170\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image016.gif 669w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image016-600x265.gif 600w\" sizes=\"auto, (max-width: 669px) 100vw, 669px\" \/><p id=\"caption-attachment-2170\" class=\"wp-caption-text\">Fig. 6. Scheme of rotor orbit measurement 1a \u2013 rotor (end view); 1b \u2013 rotor (side view); 2, 3 \u2013 non-contact sensors; 4 \u2013 reflection mark of phase angle sensor.<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>Kako bi se obavilo mjerenje i izgradio odgovaraju\u0107i grafikon, potrebno je provesti niz pripremnih operacija, uklju\u010duju\u0107i:<\/p>\n<ul>\n<li>\u2013 install the non-contact linear encoders 2 and 3 in one of the diametrical sections of the rotor at an angle of 90\u00b0 to each other, provided that the measuring axis of encoder 2 must coincide with the X axis, and the measuring axis of encoder 3 must coincide with the Y axis;<\/li>\n<li>postavite nominalni mjerni zazor \u2206x (\u2206y) izme\u0111u povr\u0161ine rotora i osjetnog elementa svakog linearnog enkodera (za \u010delik \u2206 = 3.5 mm);<\/li>\n<li>\u2013 set the phase angle sensor (not shown in the scheme) in the X \u2013 Z plane, coinciding with the installation plane of non-contact sensor 2;<\/li>\n<li>postaviti reflektiraju\u0107i znak 4 na rotoru 1 u ravnini X\u2013Z, \u0161to je potrebno za rad senzora faznog kuta;<\/li>\n<li>\u2013 connect non-contact linear encoders 2 and 3 to connectors X1 and X2, and phase angle encoder to connector X3 of the measuring unit;<\/li>\n<li>Pove\u017eite mjernu jedinicu s ra\u010dunalom.<\/li>\n<\/ul>\n<p>Za po\u010detak mjerenja orbite rotora u glavnom radnom prozoru (vidi sl. 1) pritisnite gumb \u201cF8 \u2013 Grafovi\u201d i prije\u0111ite u radni prozor \u201cGrafovi\u201d (vidi sl. 5), koji je namijenjen za izradu razli\u010ditih vrsta grafikona radijalne razmaka rotora. U ovom radnom prozoru morate pritisnuti gumb \u201cOrbit\u201d, nakon \u010dega se na zaslonu ra\u010dunala pojavljuje radni prozor u kojem se provodi potreban ciklus mjerenja (vidi sl. 7).<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_2171\" style=\"width: 509px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2171\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image014.webp\" alt=\"Sl. 7. Graf orbite rotora. Softver Balanset. \" width=\"499\" height=\"506\" class=\"size-full wp-image-2171\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image014.webp 499w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image014-296x300.webp 296w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image014-50x50.webp 50w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><p id=\"caption-attachment-2171\" class=\"wp-caption-text\">Sl. 7. Graf orbite rotora. Softver Balanset.<\/p><\/div>\n<p>Za nastavak rada u navedenom radnom prozoru (vidi sl. 7) morate uklju\u010diti rotaciju rotora i pritiskom na tipku &#8220;F9 &#8211; RUN&#8221; izvr\u0161iti mjerenje trenuta\u010dnih vrijednosti radijalnog izbijanja rotora Sxi i Syi tijekom razdoblja jednakog jednom okretaju rotora.<\/p>\n<p>Polje trenuta\u010dnih vrijednosti Sxi i Syi dobivenih tijekom mjerenja koristi se za crtanje orbite kontroliranog rotora (svaka i-ta to\u010dka orbite ima koordinate Sxi, Syi). Trenuta\u010dna veli\u010dina radijalnog pomaka izra\u010dunava se formulom:<\/p>\n<p>S\u2211i = \u221a (Sxi\u00b2 + Syi\u00b2) (1)<\/p>\n<p>gdje je S\u2211i trenuta\u010dna vrijednost veli\u010dine radijalnog pomaka (duljina radijus-vektora orbite rotora), izra\u010dunata za i-tu to\u010dku grafa;<\/p>\n<ul>\n<li>Sxi &#8211; trenuta\u010dna vrijednost radijalnog izbijanja rotora, izmjerena du\u017e osi X senzorom 2 (vidi sl. 6) u i-toj to\u010dki;<\/li>\n<li>Syi &#8211; trenuta\u010dna vrijednost radijalnog izbijanja rotora, izmjerena du\u017e osi Y senzorom 3 (vidi sl. 6) u i-toj to\u010dki.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Measurement of relative rotor vibration using non-contact linear displacement sensors With the Balanset-1A you can measure the relative vibration of the rotor using non-contact linear encoders. 1.1 Selection of the sensor type and setting Depending on the task, either vibration sensors or displacement sensors can be used for measurements. To [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2171,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-2165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-example"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/posts\/2165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/comments?post=2165"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/posts\/2165\/revisions"}],"predecessor-version":[{"id":102205,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/posts\/2165\/revisions\/102205"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/media\/2171"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/media?parent=2165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/categories?post=2165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/tags?post=2165"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}