I-CET-DQ601B Isandisi-mali sokuTyala

CET-DQ601B Charge Amplifier

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Iinkcukacha zeMveliso

Iithegi zeMveliso

Isishwankathelo somsebenzi

I-CET-DQ601B
I-amplifier yentlawulo sisixhobo sokukhulisa ijelo esinemveliso yombane elingana nentlawulo yegalelo.Ixhotyiswe nge-piezoelectric sensors, inokulinganisa ukukhawuleza, uxinzelelo, amandla kunye nobunye ubuninzi bezinto.Isetyenziswa kakhulu kugcino lwamanzi, amandla, imigodi, ukuthutha, ulwakhiwo, inyikima, i-aerospace, izixhobo kunye namanye amasebe.Esi sixhobo sinolu phawu lulandelayo.

I-1) .Isakhiwo sinengqiqo, isiphaluka siphuculwe, amacandelo aphambili kunye nezixhumi zingeniswa ngaphandle, ngokuchaneka okuphezulu, ingxolo ephantsi kunye ne-drift encinci, ukwenzela ukuba kuqinisekiswe umgangatho wemveliso ozinzile nothembekileyo.
2).Ngokuphelisa igalelo lokunciphisa i-capacitance elinganayo yentambo yokufaka, intambo inokwandiswa ngaphandle kokuchaphazela ukuchaneka komlinganiselo.
3) imveliso 10VP 50mA.
4) .Inkxaso ye-4,6,8,12 itshaneli (ukhetho), i-DB15 idibanisa imveliso, i-voltage yokusebenza: DC12V.

Picture

Umgaqo womsebenzi

I-CET-DQ601B i-amplifier yentlawulo yenziwe kwinqanaba lokuguqula intlawulo, inqanaba eliguqukayo, isihluzo sokupasa esisezantsi, isihluzo sokupasa okuphezulu, inqanaba lokugqibela lokulayisha iamplifier kunye nonikezelo lwamandla.NONE
1).Inqanaba lokuguqulwa kwentlawulo: kunye ne-amplifier yokusebenza i-A1 njengeyona nto ingundoqo.
I-CET-DQ601B i-amplifier yentlawulo inokudityaniswa ne-piezoelectric acceleration sensor, i-piezoelectric force sensor kunye ne-piezoelectric pressure sensor.Uphawu oluqhelekileyo kubo kukuba ubungakanani bomatshini buguqulwa bube yintlawulo ebuthathaka Q ehambelana nayo, kwaye i-impedance ye-RA iphezulu kakhulu.Inqanaba lokuguqulwa kwentlawulo kukuguqula intlawulo ibe yi-voltage (1pc / 1mV) ehambelana nentlawulo kunye nokutshintsha i-impedance ephezulu yokuphuma kwi-impedance ephantsi.
Ca---Umthamo wesixhobo soluvo uqhele ukuba ngamawaka aliqela e-PF, 1 / 2 π Raca imisela umda ophantsi ophantsi woluvo.

Picture 2

I-Cc--Isiphumo soluvo lwesakhono esisezantsi sentambo yengxolo.
I-Ci--Input capacitance ye-amplifier yokusebenza A1, ixabiso eliqhelekileyo 3pf.
Inqanaba lokuguqulwa kwentlawulo ye-A1 yamkela i-American wide-band Precision Operational Amplifier ene-impedance ephezulu, ingxolo ephantsi kunye nokukhukuliseka okuphantsi.I-feedback capacitor CF1 inamanqanaba amane e-101pf, 102pf, 103pf kunye ne-104pf.Ngokutsho kwethiyori kaMiller, i-capacitance esebenzayo eguqulelwe kwi-feedback capacitance kwigalelo yile: C = 1 + kcf1.Apho u-k yinzuzo evulekileyo ye-loop ye-A1, kwaye ixabiso eliqhelekileyo yi-120dB.I-CF1 yi-100pF (ubuncinci) kwaye i-C imalunga ne-108pf.Ukucinga ukuba igalelo eliphantsi lomsindo wekhebula ubude be-sensor yi-1000m, i-CC yi-95000pf;Ukucinga ukuba i-sensor CA yi-5000pf, i-capacitance iyonke ye-caccic ngokuhambelana malunga ne-105pf.Xa kuthelekiswa ne-C, i-capacitance epheleleyo yi-105pf / 108pf = 1 / 1000. Ngamanye amazwi, i-sensor ene-5000pf capacitance kunye ne-1000m ye-cable ye-output cable elingana ne-feedback capacitance iya kuchaphazela kuphela ukuchaneka kwe-CF1 0.1%.Umbane ophumayo wenqanaba lokuguqulwa kwentlawulo yintlawulo yemveliso ye-sensor Q / i-capacitor ye-feedback CF1, ngoko ke ukuchaneka kwe-voltage ephumayo kuchaphazeleka kuphela ngu-0.1%.
Imveliso yombane wenqanaba lokuguqulwa kwentlawulo yi-Q / CF1, ngoko ke xa i-capacitors yempendulo i-101pf, 102pf, 103pf kunye ne-104pf, i-voltage yemveliso yi-10mV / PC, 1mV / PC, 0.1mv / pc kunye ne-0.01mv / pc ngokulandelanayo.

2).Inqanaba lokuziqhelanisa
Iqukethe i-amplifier yokusebenza i-A2 kunye ne-sensor sensitivity adjusting potentiometer W. Umsebenzi weli nqanaba kukuba xa usebenzisa i-piezoelectric sensors kunye ne-sensitivities ezahlukeneyo, isixhobo sonke sinomthamo oqhelekileyo wombane.

3) isihluzo sokupasa esisezantsi
Uluhlu lwesibini lwe-Butterworth olusebenzayo lwamandla kunye ne-A3 njengoko lungundoqo lunoncedo lwamacandelo amancinci, ukulungiswa okufanelekileyo kunye ne-flat passband, enokuphelisa ngempumelelo impembelelo yemiqondiso yokuphazamiseka okuphezulu kwimiqondiso eluncedo.

4)) Isihluzi sokupasa okuphezulu
Isihluzi esibhalwe nge-c4r4 sinokuthi sicinezele impembelelo yeempawu zophazamiseko olusezantsi kwimiqondiso eluncedo.

5).Iamplifier yamandla yokugqibela
Nge-A4 njengondoqo wokufumana i-II, imveliso yokukhusela isiphaluka esifutshane, ukuchaneka okuphezulu.

6).Inqanaba lokulayisha ngaphezulu
Nge-A5 njengondoqo, xa i-voltage ephumayo inkulu kune-10vp, i-LED ebomvu kwiphaneli yangaphambili iya kukhanya.Ngeli xesha, umqondiso uya kuncitshiswa kwaye uphazamiseke, ngoko inzuzo kufuneka iyancipha okanye iphosakele.

Iiparamitha zobugcisa

1)Uphawu lwegalelo: intlawulo enkulu yegalelo ± 106Pc
2)Uvakalelo: 0.1-1000mv / PC (- 40 '+ 60dB kwi-LNF)
I-3) Uhlengahlengiso lwe-Sensor sensitivity: i-turntable enedijithi ezintathu ilungelelanisa uvakalelo lwentlawulo ye-sensor 1-109.9pc / iyunithi (1)
4) Ukuchaneka:
I-LMV / iyunithi, i-loMV / iyunithi, i-lomy / iyunithi, i-1000mV / iyunithi, xa i-capacitance efanayo yentambo yokufaka ingaphantsi kwe-lonf, i-68nf, i-22nf, i-6.8nf, i-2.2nf ngokulandelanayo, i-lkhz imeko yesalathiso (2) ingaphantsi kwe-± The imeko yokusebenza ehleliweyo (3) ingaphantsi kwe-1% ± 2%.
5) Isihluzo kunye nokuphendula rhoqo
a) Isihluzo sokupasa okuphezulu;
Umda osezantsi oqhelekileyo ngu-0.3, 1, 3, 10, 30 kunye ne-loohz, kwaye ukutenxa okuvumelekileyo ngu-0.3hz, - 3dB_ 1.5dB; l.3, 10, 30, 100Hz, 3dB ± LDB, i-slope yokunciphisa: - 6dB / i-cot.
b) isihluzo sokudlula esisezantsi;
Umda wokujikeleza okuphezulu: 1, 3, jonga, 30, 100kHz, BW 6, ukutenxa okuvumelekileyo: 1, 3, jonga, 30, 100khz-3db ± LDB, i-slope yokunciphisa: 12dB / Oct.
6)uphawu lwemveliso
a) Esona siphumo siphezulu seamplitude: ± 10Vp
b)Eyona mveliso yangoku:±100mA
c) Ubuncinci ukumelana nomthwalo: 100Q
d) Ukuphazamiseka kweHarmonic: ngaphantsi kwe-1% xa i-frequency ingaphantsi kwe-30kHz kunye nomthwalo we-capacitive ungaphantsi kwe-47nF.
7) ingxolo:< 5 UV (inzuzo ephezulu ilingana negalelo)
I-8) Isalathiso sokugqithiswa: ixabiso lencopho yemveliso lidlula i-± ( Kwi-10 + O.5 FVP, i-LED ivuliwe malunga nemizuzwana emi-2.
9) Ixesha lokufudumala: malunga nemizuzu engama-30
10) Ubonelelo lwamandla: AC220V ± 1O%

indlela yokusetyenziswa

1. I-impedance yegalelo le-amplifier yentlawulo iphezulu kakhulu.Ukuze uthintele umzimba womntu okanye i-voltage ye-induction yangaphandle ekwaphuleni i-amplifier yegalelo, umbane kufuneka ucinywe xa udibanisa inzwa kwigalelo le-amplifier okanye ususa inzwa okanye ukrokrela ukuba isinxibelelanisi sikhululekile.
2. nangona ikhebula elide lingathathwa, ukwandiswa kwentambo kuya kuzisa ingxolo: ingxolo engokwemvelo, ukunyakaza komatshini kunye nesandi se-AC sentambo.Ngoko ke, xa ulinganisa kwisayithi, ikhebula kufuneka libe yingxolo ephantsi kwaye lifinyeze kangangoko kunokwenzeka, kwaye kufuneka lilungiswe kwaye lide kude nezixhobo ezinkulu zamandla ombane.
3. i-welding kunye ne-assembly of connectors esetyenziswe kwiinzwa, iintambo kunye ne-amplifiers yentlawulo zingcali kakhulu.Ukuba kuyimfuneko, amagcisa akhethekileyo aya kuqhuba i-welding kunye nendibano;I-rosin anhydrous ethanol solution flux (ioli yokuwelda ayivumelekanga) iya kusetyenziselwa ukuwelda.Emva kwe-welding, ibhola yepotton yonyango iya kubhakwa nge-alcohol e-anhydrous (i-alcohol yonyango ayivunyelwe) ukusula i-flux kunye ne-graphite, kwaye yomile.Isidibanisi siya kugcinwa sicocekile kwaye somile rhoqo, kwaye isigqubuthelo sekhuselo siya kukrhwathwa xa singasetyenziswa
4. ukwenzela ukuba kuqinisekiswe ukuchaneka kwesixhobo, ukufudumala kwangaphambili kuya kuqhutywa imizuzu eyi-15 ngaphambi kokulinganisa.Ukuba ukufuma kungaphezulu kwe-80% ixesha lokufudumeza kufuneka libe ngaphezu kwemizuzu engama-30.
5. Impendulo eguqukayo yenqanaba lokuphuma: ibonakaliswe ngokukodwa kwikhono lokuqhuba umthwalo we-capacitive, oqikelelwa ngolu hlobo lulandelayo: C = I / 2 л Kwifomula ye-vfmax, i-C yi-capacitance yomthwalo (f);I-output stage output current umthamo (0.05A);I-voltage ephezulu ye-V (10vp);Awona maza okusebenza amaninzi e-Fmax yi-100kHz.Ngoko amandla omthwalo ophezulu yi-800 PF.
6).Uhlengahlengiso lweqhosha
(1) Uvakalelo lwezivamvo
(2) Inzuzo:
(3) Inzuzo II (inzuzo)
(4) - 3dB umda ophantsi ophantsi
(5) Isantya esiphezulu somda ophezulu
(6) Umthwalo omninzi
Xa i-voltage ephumayo ingaphezulu kwe-10vp, ukukhanya okugqithisiweyo kuyadanyaza ukukhuthaza umsebenzisi ukuba i-waveform igqwethekile.Ukuzuza kufuneka kuncitshiswe okanye.impazamo kufuneka isuswe

Ukukhethwa kunye nokufakwa kwabenzi boluvo

Njengoko ukhetho kunye nokufakwa kwenzwa kunempembelelo enkulu ekuchanekeni komlinganiselo we-amplifier yentlawulo, oku kulandelayo kukwazisa ngokufutshane: 1. Ukukhethwa kwenzwa:
(1) Umthamo kunye nobunzima: njengobunzima obongezelelweyo bento elinganisiweyo, inzwa iya kuchaphazela ngokuqinisekileyo imo yokunyakaza kwayo, ngoko ke i-mass ma ye-sensor iyadingeka ukuba ibe ngaphantsi kwe-m yento elinganisiweyo.Kwamanye amacandelo avavanyiweyo, nangona ubunzima bukhulu ngokubanzi, ubunzima benzwa bunokuthelekiswa nobuninzi bendawo yesakhiwo kwiindawo ezithile zofakelo loluvo, njengezakhiwo ezinodonga olubhityileyo, oluya kuchaphazela indawo yendawo. Imo yentshukumo yesakhiwo.Kule meko, umthamo kunye nobunzima benzwa kufuneka bube buncinci kangangoko kunokwenzeka.
(2) Ukufakela i-resonance frequency: ukuba i-frequency yokulinganisa umqondiso ngu-f, i-frequency ye-resonance yofakelo kufuneka ibe nkulu kune-5F, ngelixa impendulo ye-frequency enikwe kwi-sensor manual yi-10%, malunga ne-1 / 3 yofakelo lokufakela. rhoqo.
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2),Ufakelo lwabenzi boluvo
(1) Indawo yoqhagamshelwano phakathi kwenzwa kunye nenxalenye evavanyiweyo iya kucoceka kwaye igudileyo, kwaye ukungalingani kuya kuba ngaphantsi kwe-0.01mm.I-axis ye-screw hole yokunyuka iya kuhambelana nesikhokelo sovavanyo.Ukuba umphezulu wokuxhoma urhabaxa okanye umyinge olinganisiweyo udlula i-4kHz, enye igrisi yesilicone ecocekileyo ingafakwa kumphezulu wonxibelelwano ukuze kuphuculwe ukudityaniswa kwamatyeli aphezulu.Xa ulinganisa impembelelo, kuba i-pulse yempembelelo inamandla amakhulu adlulayo, ukudibanisa phakathi kwenzwa kunye nesakhiwo kufuneka kuthembeke kakhulu.Kungcono ukusebenzisa iibholiti zetsimbi, kunye ne-torque yokufakela malunga ne-20kg.I-cm.Ubude bebholi kufuneka bufaneleke: ukuba bufutshane kakhulu, amandla awanele, kwaye ukuba ide kakhulu, isithuba phakathi kwenzwa kunye nesakhiwo sinokushiywa, ukuqina kuya kuncitshiswa, kunye ne-resonance frequency. iya kuncitshiswa.I-bolt ayifanele ifakwe kwi-sensor kakhulu, ngaphandle koko i-plane yesiseko iya kugoba kwaye uvakalelo luya kuchaphazeleka.
(2) I-gasket ye-insulation okanye ibhloko yokuguqula kufuneka isetyenziswe phakathi kwenzwa kunye nenxalenye evavanyiweyo.I-resonance frequency ye-gasket kunye nebhloko yokuguqulwa iphezulu kakhulu kune-vibration frequency of the structure, ngaphandle koko i-resonance frequency entsha iya kongezwa kwisakhiwo.
(3) I-axis ebucayi ye-sensor kufuneka ihambelane nesalathiso sentshukumo yecandelo elivavanyiweyo, ngaphandle koko i-axial sensitivity iya kuncipha kwaye i-transverse sensitivity iya kwanda.
(4) Ijita yentambo iya kubangela ufowunelwa olungeluhle kunye nengxolo yokukhuhlana, ngoko ke icala elikhokelayo lesixhobo soluvo kufuneka libe ecaleni kobuncinci becala lentshukumo yento.
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(6) Uxhulumaniso lwe-bolt ye-insulated: i-sensor ifakwe i-insulated ukusuka kwicandelo eliza kulinganiswa, elinokuthi lithintele ngokufanelekileyo impembelelo yentsimi yombane emhlabeni kumlinganiselo.
(7) Ukudityaniswa kwesiseko sokufakelwa kwemagneti: isiseko sokunyuswa kozibuthe sinokwahlulwa zibe ziindidi ezimbini: ukugquma emhlabeni kunye nokungagqumezeli emhlabeni, kodwa ayifanelekanga xa ukukhawuleza kudlula i-200g kwaye ubushushu budlula i-180.
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9Inzuzo ayikonakalisi isakhiwo.
(10) Izibophelelo eziqhelekileyo: i-epoxy resin, amanzi e-rubber, i-502 glue, njl.

Izincedisi zesixhobo kunye namaxwebhu akhaphayo

1).Intambo yombane ye-AC enye
2).Incwadi enye yomsebenzisi
3).1 ikopi yedatha yokuqinisekisa
4).Ikopi enye yoluhlu lokupakisha
7,Inkxaso yobuGcisa
Nceda uqhagamshelane nathi ukuba kukho ukungaphumeleli ngexesha lofakelo, ukusebenza okanye ixesha lewaranti engenakugcinwa yinjineli yamandla.

Qaphela: Inombolo yecandelo elidala CET-7701B iya kuyekwa ukuba isetyenziswe kude kube sekupheleni kuka-2021(Dec 31th.2021), ukususela nge-1 kaJan 2022, siya kutshintsha sibe yinxalenye entsha ye-numebr CET-DQ601B.


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