CET-DQ601B Charge Amplifier
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CET-DQ601B
charge amplifier ichaji yekuchaja amplifier iyo inobuda voltage inoenzanirana nechaji yekupinza.Yakashongedzerwa nepiezoelectric sensors, inogona kuyera kukwirisa, kudzvanywa, simba uye mamwe ma mechanic huwandu hwezvinhu.Inoshandiswa zvakanyanya mukuchengetedza mvura, simba, migodhi, zvekufambisa, kuvaka, kudengenyeka kwenyika, aerospace, zvombo uye mamwe madhipatimendi.Chiridzwa ichi chine hunhu hunotevera.
1) . Mamiriro acho anonzwisisika, dunhu rinogadziriswa, zvikamu zvikuru uye zvibatanidza zvinotengeswa kunze kwenyika, nehupamhi hwepamusoro, ruzha rwakaderera uye ruduku ruduku, kuitira kuti tive nechokwadi chekugadzikana uye chakavimbika chigadzirwa chemhando.
2).Nekubvisa iyo attenuation yekupinda yeyakaenzana capacitance yetambo yekupinza, tambo inogona kuwedzerwa pasina kukanganisa kuyerwa kwechiyero.
3).kubuda 10VP 50mA.
4) .Support 4,6,8,12 channel(optional), DB15 batanidza kubuda, kushanda voltage:DC12V.
Basa musimboti
CET-DQ601B yekuchaja amplifier inoumbwa nechaji chekushandura nhanho, inogadzirisa nhanho, yakaderera pass sefa, yakakwirira pass filter, yekupedzisira simba amplifier yakawandisa nhanho uye magetsi ekupa.Th:
1）.Charge conversion stage: ine operation amplifier A1 seyo musimboti.
CET-DQ601B yekuchaja amplifier inogona kubatana nepiezoelectric acceleration sensor, piezoelectric force sensor uye piezoelectric pressure sensor.Iyo yakajairika hunhu hwavo ndeyekuti iyo mechanic uwandu inoshandurwa kuita isina kusimba yekuchaja Q iyo yakaenzana nayo, uye inobuda impedance RA yakanyanya.Iyo nhanho yekushandura nhanho ndeye kushandura iyo charge kuita voltage (1pc / 1mV) inoenderana nekuchaja uye kushandura iyo yakakwira inoburitsa impedance kuita yakaderera kubuda impedance.
Ca--- Kugona kwe sensor kunowanzo kuve zviuru zvakati wandei PF, 1 / 2 π Raca inosarudza yakaderera frequency yakaderera muganho we sensor.
Cc-- Sensor inobuda yakaderera ruzha tambo capacitance.
Ci--Input capacitance yekushanda amplifier A1, yakajairika kukosha 3pf.
Iyo yekuchaja yekushandura nhanho A1 inotora American yakakura-bhendi Precision Operational Amplifier ine yakakwira yekupinza impedance, yakaderera ruzha uye yakaderera kudhiraivha.Iyo mhinduro capacitor CF1 ine mazinga mana e101pf, 102pf, 103pf uye 104pf.Zvinoenderana ne theorem yaMiller, iyo inoshanda capacitance yakashandurwa kubva pamhinduro capacitance kuenda kune yekuisa ndeye: C = 1 + kcf1.Iko k ndiyo yakavhurika-loop kuwana yeA1, uye yakajairika kukosha ndeye 120dB.CF1 iri 100pF (shoma) uye C inenge 108pf.Tichifunga kuti iyo yekuisa yakaderera ruzha tambo kureba kweiyo sensor ndeye 1000m, iyo CC i95000pf;Tichifunga kuti sensor CA ndeye 5000pf, iyo yakazara capacitance yecaccic yakafanana ndeye 105pf.Kuenzaniswa neC, iyo yakazara capacitance ndeye 105pf / 108pf = 1 / 1000. Mune mamwe mazwi, sensor ine 5000pf capacitance uye 1000m inobuda tambo yakaenzana nemhinduro capacitance inongokanganisa kurongeka kweCF1 0.1%.Iyo inobuda voltage yechaji yekutendeuka nhanho ndiyo inobuda mutero we sensor Q / mhinduro capacitor CF1, saka iko kurongeka kwemagetsi ekubuda kunongobatwa ne 0.1%.
Iyo inobuda voltage yechaji yekushandura nhanho ndeye Q / CF1, saka kana mhinduro capacitors iri 101pf, 102pf, 103pf uye 104pf, inobuda voltage i10mV / PC, 1mV / PC, 0.1mv/pc uye 0.01mv/pc zvichiteerana.
2).Adaptive level
Inosanganisira kushanda amplifier A2 uye sensor senitivity kugadzirisa potentiometer W. Basa rechikamu ichi nderokuti kana uchishandisa piezoelectric sensors ine zvakasiyana-siyana zvekunzwa, chiridzwa chose chine normalized voltage output.
3).low pass sefa
Yechipiri-yakarongeka Butterworth inoshanda simba sefa ine A3 sezvo musimboti ine zvakanakira zvishoma zvinoriumba, nyore kugadzirisa uye flat passband, iyo inogona zvinobudirira kubvisa pesvedzero ye-high-frequency interference signals pazviratidzo zvinobatsira.
4)) High pass sefa
Yekutanga-yakarongeka passive yakakwirira pass sefa inoumbwa nec4r4 inogona kunyatso kudzvanya pesvedzero yeyakaderera-frequency kupindira masiginecha pazviratidzo zvinobatsira.
5).Final simba amplifier
Iine A4 semusimboti wekuwana II, inoburitsa pfupi yekudzivirira yedunhu, yakanyanya kurongeka.
6).Overload level
Iine A5 semusimboti, kana magetsi ekubuda akakura kupfuura 10vp, iyo tsvuku LED pane yekumberi inopenya.Panguva ino, chiratidzo chichaderedzwa uye chinokanganisa, saka pfuma inofanira kuderedzwa kana kukanganisa kunofanira kuwanikwa.
Technical parameters
1) Input hunhu: yakanyanya kubhadharisa yekubhadharisa ± 106Pc
2)Kunzwa: 0.1-1000mv / PC (- 40 '+ 60dB paLNF)
3) Sensor senitivity kugadziriswa: matatu digit turntable inogadzirisa sensor charge senitivity 1-109.9pc / unit (1)
4) Kururama:
LMV / unit, lomv / unit, lomy / unit, 1000mV / unit, apo iyo yakaenzana capacitance yekuisa tambo iri pasi pe lonf, 68nf, 22nf, 6.8nf, 2.2nf zvakateerana, lkhz referensi mamiriro (2) isingasviki ± Iyo rated kushanda mamiriro (3) iri pasi pe1% ± 2％.
5) Sefa uye frequency mhinduro
a) High pass filter;
Iyo yakaderera muganho frequency ndeye 0.3, 1, 3, 10, 30 uye loohz, uye inotenderwa kutsauka ndeye 0.3hz, - 3dB_ 1．5dB; l.3, 10, 30, 100Hz, 3dB ± LDB, attenuation slope: - 6dB / rukukwe.
b) low pass filter;
Yepamusoro muganho frequency: 1, 3, tarisa, 30, 100kHz, BW 6, inobvumirwa kutsauka: 1, 3, tarisa, 30, 100khz-3db ± LDB, attenuation kutsetseka: 12dB / Oct.
6)output character
a) Yakanyanya kuburitsa amplitude: ± 10Vp
b)Maximum goho razvino: ± 100mA
c) Minimum mutoro kuramba: 100Q
d) Harmonic distortion: isingasviki 1% kana frequency yakaderera pane 30kHz uye capacitive mutoro uri pasi pe47nF.
7) ruzha:<5 UV (iyo yepamusoro pfuma yakaenzana nekuisa)
8)Chiratidzo chekuwandisa: kukosha kwepamusoro kunodarika I ± (Pa10 + O.5 FVP, iyo LED inobatidzwa kweinenge 2 masekonzi.
9) Preheating nguva: anenge maminitsi makumi matatu
10) Simba rekushandisa: AC220V ± 1O％
kushandisa nzira
1. iyo impedance yekupinza yekuchaja amplifier yakanyanya kwazvo.Kuti udzivise muviri wemunhu kana ekunze induction voltage kubva pakupwanya iyo yekuisa amplifier, iyo magetsi inofanirwa kudzimwa kana ichibatanidza sensor kune yekuchaja amplifier yekupinda kana kubvisa sensor kana kufungidzira kuti chinongedzo chakasununguka.
2. kunyange zvazvo tambo yakareba inogona kutorwa, kuwedzerwa kwetambo kuchaunza ruzha: ruzha rwemukati, mechanical motion uye induced AC inzwi retambo.Nokudaro, pakuyera panzvimbo, tambo inofanira kuva yakaderera ruzha uye kupfupisa zvakanyanya sezvinobvira, uye inofanira kugadziriswa uye kure kure nemagetsi makuru emagetsi emagetsi.
3. iyo welding uye gungano rezvibatanidza zvinoshandiswa pane sensors, cables uye charge amplifiers inyanzvi.Kana zvichidikanwa, nyanzvi dzakakosha dzinoita welding uye ungano;Rosin anhydrous ethanol solution flux (welding oil haibvumidzwe) ichashandiswa pakunama.Mushure mekuputika, bhora rekotoni yezvokurapa richaputirwa neanhydrous doro (doro yekurapa inorambidzwa) kupukuta flux uye graphite, uye wozoomesa.Chibatanidza chichachengetwa chakachena uye chakaoma nguva nenguva, uye chivharo chenhoo chinofanira kukwizwa kana chisina kushandiswa
4. kuitira kuti ave nechokwadi chekururama kwechiridzwa, preheating ichaitwa kwemaminitsi gumi nemashanu isati yayera.Kana hunyoro hunopfuura 80% nguva yekupisa inofanira kunge inopfuura maminitsi makumi matatu.
5. Mhinduro yeDynamic yechikamu chekubuda: inonyanya kuratidzwa mukukwanisa kutyaira capacitive load, iyo inofungidzirwa nemaitiro anotevera: C = I / 2 л Mune vfmax formula, C ndiyo inotakura capacitance (f);Ini inoburitsa nhanho yekubuda ikozvino kugona (0.05A);V peak output voltage (10vp);Iyo yakanyanya kushanda frequency yeFmax ndeye 100kHz.Saka iyo yakanyanya kuremerwa capacitance ndeye 800 PF.
6).Kugadziriswa kweknob
(1) Sensor sensitivity
(2) Kuwana:
(3) Kuwana II (kuwana)
(4) - 3dB yakaderera frequency muganho
(5) High frequency kumusoro muganho
(6) Kuwandisa
Kana iyo inobuda voltage yakakura kupfuura 10vp, iyo yakawandisa mwenje inopenya kukurudzira mushandisi kuti waveform yakakanganiswa.Kuwana kunofanira kuderedzwa kana.mhosva yacho inofanira kubviswa
Kusarudzwa uye kuiswa kwema sensors
Sezvo kusarudzwa uye kuiswa kwe sensor kune simba guru pakuyera kuyerwa kwechaji amplifier, zvinotevera sumo pfupi: 1. Kusarudzwa kwe sensor:
(1) Vhoriyamu uye uremu: sekuwedzera kuwanda kwechinhu chakayerwa, sensor inozokanganisa mamiriro ayo ekufamba, saka mass ma sensor anodiwa kuti aite kushoma kudarika muwandu hwechinhu chakayerwa.Kune zvimwe zvikamu zvakaedzwa, kunyangwe hukuru hwakakura sese, huwandu hwe sensor hunogona kufananidzwa nehukuru hwenzvimbo yechimiro mune dzimwe nzvimbo dzekuisirwa sensor, senge mamwe matete-amadziro zvimiro, izvo zvinokanganisa nzvimbo yemuno. kufamba mamiriro echimiro.Muchiitiko ichi, vhoriyamu uye uremu hwe sensor inodiwa kuti ive shoma sezvinobvira.
(2) Kuiswa resonance frequency: kana yakayerwa chiratidzo frequency iri f, iyo yekuisa resonance frequency inodiwa kuti ive yakakura kupfuura 5F, nepo frequency mhinduro yakapihwa mubhuku re sensor iri 10%, ingangoita 1/3 yekuisa resonance. frequency.
(3) Charge senitivity: iyo yakakura zvirinani, izvo zvinogona kuderedza kuwanikwa kwechaji amplifier, kuvandudza chiratidzo-kune-ruzha reshiyo uye kuderedza kudonha.
2), Kuiswa kwema sensors
(1) Iyo yekubata kumeso pakati pe sensor uye yakaedzwa chikamu ichave yakachena uye yakatsetseka, uye kusaenzana kuchave kushoma pane 0.01mm.Iyo axis yeinokwirisa screw hole ichaenderana neyakananga bvunzo.Kana iyo yekumisikidza yakashata kana iyo yakayerwa frequency inodarika 4kHz, mamwe akachena silicone girisi anogona kuiswa panzvimbo yekubata kuti avandudze yakakwira frequency coupling.Pakuyera kukanganiswa, nekuti iyo inokanganisa pulse ine simba rinopfuura rakakura, kubatana pakati pe sensor uye chimiro kunofanirwa kuve kwakavimbika.Zvakanakisisa kushandisa mabhoti esimbi, uye torque yekuisa inenge 20kg.Cm.Kureba kwebhoti kunofanira kunge kwakakodzera: kana yakanyanya kupfupika, simba harina kukwana, uye kana rakareba, musiyano pakati pe sensor uye chimiro chinogona kusara, kuoma kuchaderedzwa, uye resonance frequency. zvichaderedzwa.Iyo bhaudhi haifanirwe kukwizwa mukati me sensor yakawandisa, kana zvisina kudaro ndege yepasi ichave yakakotama uye senitivity ichakanganiswa.
(2) Insulation gasket kana kutendeuka block inofanira kushandiswa pakati pe sensor uye chikamu chakaedzwa.Iyo resonance frequency ye gasket uye kutendeuka block yakakwira zvakanyanya kupfuura iyo vibration frequency yechimiro, kana zvisina kudaro mutsva resonance frequency ichawedzerwa kune chimiro.
(3) Iyo inonzwisisika axis ye sensor inofanirwa kuenderana nekufamba kweiyo chikamu chakaedzwa, zvikasadaro iyo axial sensitivity ichaderera uye iyo transverse senitivity ichawedzera.
(4) Iyo jitter yetambo inokonzeresa kutadza kubata uye kukweshana ruzha, saka iyo inotungamira yekubuda nzira ye sensor inofanirwa kunge iri pamwe neiyo shoma yekufamba kutungamira kwechinhu.
(5) Simbi bhaudhi yekubatanidza: yakanaka frequency mhinduro, iyo yepamusoro yekuisa resonance frequency, inogona kutamisa kukwirisa kukuru.
(6) Insulated bolt connection: iyo sensor inoputirwa kubva kune chikamu kuti chiyerwe, chinogona kudzivirira zvinobudirira simba repasi remagetsi munda pachiyero.
(7) Kubatanidzwa kwemagineti inokwira base: magineti inokwira base inogona kukamurwa kuita marudzi maviri: kuvharisa pasi uye kusaisa pasi pasi, asi haina kukodzera kana kukwirisa kuchipfuura 200g uye tembiricha inopfuura 180.
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(9) Bonding bolt connection: bhoti inotanga kusungirirwa kune chimiro kuti chiedzwe, uye ipapo sensor inoputirwa.Kubatsira hakusi kukuvadza chimiro.
(10) Zvisungo zvakajairika: epoxy resin, mvura yerabha, 502 glue, nezvimwe.
Instrument accessories uye magwaro anoperekedza
1).Imwe AC magetsi tambo
2).Rimwe bhuku rekushandisa
3).1 kopi yedata rekusimbisa
4).Imwe kopi yekurongedza rondedzero
7, Tsigiro yehunyanzvi
Ndapota taura nesu kana pane kukundikana panguva yekuisa, kushanda kana nguva yewaranti iyo isingagoni kuchengetwa nejinjiniya yemagetsi.
Cherechedza: Chikamu chekare chenhamba CET-7701B chichamiswa kushandiswa kusvika kupera kwa2021 (Zvita 31th.2021), kubva Ndira 1st 2022, tichachinja kuita chikamu chitsva numebr CET-DQ601B.