Linear Variable Differential Transformer LVDT

Bayanin LVDT

Kalmomin LVDT tana nufin Linear Variable Differential Transformer. Wannan shi ne transducer da ya fi dacewa mafi yawan amfani da shi wajen kawo hanyar gwargwadon lura zuwa alamun jirgin sama.

Alamu na biyu a fadin farkon wannan transformer tana cikin mutane, saboda haka an sanya shi. Shi ne transducer mai kyau a kan duk transducer masu inductive.

Binciken LVDT

Abubuwan Dukkan Bincike

• Transformern tana da zuba mai tsakiya P da biyu sun zuba S1 da S2 zuba su a former mai kuka (wanda ya fi yawa da core).

• Biye sun zuba su da adadin darajar da dama, suka sa ta hanyar biyu a fadin zuba mai tsakiya.

• Zuba mai tsakiya tana haɗa da AC source wanda ya bude flux a farin gasar da kuma voltage suka fito a fadin sun zuba.

• Core mai girma tana gurbin a fadin former, kuma abin da za a bincika tana haɗa da core.

• Core mai girma tana da maƙasun ƙarin faɗa wanda ya taimakawa wajen rage harmonics da kuma fasahar LVDT.

• LVDT tana gurbin a housing mai stainless steel saboda zai ba shi da inganci da ƙarin daidai don electrostatic da electromagnetic shielding.

• Fadin sun zuba suka haɗa da hakan da aka sanya shi ita ce mutanen voltage duka biyu.

Tsarin Amfani da Farkon Aiki

Saboda zuba mai tsakiya tana haɗa da AC source, wanda ya bude alternating current da kuma voltage a fadin sun zuba LVDT. Alamu a fadin S1 tana e1 da kuma a fadin S2 tana e2. Saboda haka, alamu mai musamman tana,

Wannan tasiri tana bayyana tsari na amfani da LVDT.

Duk da haka, akwai uku wurare da suka shafi muhimmin core wanda suke bayyana aikinsa LVDT a cikin bayanin:

• HALAYA I Idan core tana cikin wuraren null (babu abin da ya faru)
  Idan core tana cikin wuraren null, flux da ke farin biyu sun zuba su da dama, kuma voltage da suka fito su da dama. Saboda haka, idan babu abin da ya faru, alamar eout tana zero saboda e1 da e2 su da dama. Saboda haka, yana nuna cewa babu abin da ya faru.

• HALAYA II Idan core tana zama zuwa ƙarfafin wuraren null (abinda ya faru zuwa ƙarfafin wuraren null)
  A halayar, flux da ke farin fadin S1 yana da ƙarin cewa flux da ke farin S2. Saboda haka, e1 zai ƙara e2. Saboda haka, voltage na output eout zai ƙaramin maida.

• HALAYA III Idan core tana zama zuwa ƙarshe na wuraren null (abinda ya faru zuwa ƙarshe na wuraren null). A halayar, e2 zai ƙara e1. Saboda haka, output eout zai ƙarshe maida da kuma yana nuna output zuwa ƙarshe na wuraren null.

Voltage na Output Core Displacement Kurba mai lura tana nuna cewa voltage na output tana ƙungiyar lura da displacement na core.

Abubuwan muhimmiyar game da magnitude da alamar voltage da suka fito a LVDT

• Yadda ake yi ƙarin ko kadan a voltage, ya ƙara da abin da core ta faru da kuma yana nuna abin da ya faru.

• Tun da ƙarin a matsayin voltage na output, zan iya samun yadda abin ta faru.

• Voltage na output na LVDT tana ƙungiyar lura da displacement na core.

Fadada LVDT

• Tsarin Mafi Yawa – LVDTsun da tsarin mafi yawa wajen bincike displacement. Suna iya amfani da su don bincike displacements daga 1.25 mm zuwa 250 mm

• Babu Faduwar Jirgin Kasa – Saboda core tana zama a former mai kuka, babu faduwar jirgin kasa, saboda haka, LVDT tana zama aikin mai kyau.

• Voltage Mai Tsakiya da Fasahar Ƙarin – Output na LVDT tana da ƙarin maida, saboda haka, ba a bukatar amplification. Transducern tana da fasahar ƙarin, wanda ya ƙara 40V/mm.

• Hysteresis Ƙarin – LVDTsun da hysteresis ƙarin, kuma zan iya duba a cikin hukumomi daban-daban.

• Kudaden Power Ƙarin – Power tana 1W, wanda tana ƙarin cewa a kan wasu transducers.

• Kawo Hanyar Gwargwadon Lura Zuwa Alamun Jirgin Sama – Sun kawo hanyar gwargwadon lura zuwa alamun jirgin sama, wanda suke ƙara a process.

Nahawu na LVDT

• LVDT tana ƙarin da stray magnetic fields saboda haka, yana bukata setup don ka ƙara shi daga magnetic fields.

• LVDT tana ƙara da vibrations da temperature.

Ita ce da ake ƙara cewa suna da fadada ƙarin cewa a kan wasu transducer masu inductive.

Sada