Signal generators yog cov khoom siv uas tsim los rau kev sim cov khoom xa tawm. Tsis tas li ntawd, cov kws tshaj lij siv lawv los ntsuas cov yam ntxwv ntawm analog converters. Qauv transmitters raug sim los ntawm simulating lub teeb liab. Qhov no yog qhov tsim nyog los xyuas cov cuab yeej ua raws li cov qauv niaj hnub no. Ncaj nraim, lub teeb liab rau lub cuab yeej tuaj yeem muab rau hauv daim ntawv ntshiab lossis nrog kev sib txawv. Nws qhov ceev tuaj yeem sib txawv ntawm cov channel.
Lub tshuab hluav taws xob zoo li cas?
Yog tias peb xav txog cov qauv ib txwm muaj ntawm lub teeb liab lub tshuab hluav taws xob, ces lub vijtsam tuaj yeem pom ntawm lub vaj huam sib luag pem hauv ntej. Nws yog ib qho tsim nyog txhawm rau saib xyuas kev hloov pauv thiab ua tiav kev tswj hwm. Nyob rau sab saum toj ntawm lub vijtsam yog tus editor uas muaj ntau yam haujlwm xaiv los ntawm. Ntxiv rau hauv qab no yog cov sequencer, uas qhia qhov zaus ntawm oscillation. Hauv qab nws yog hom kab. Lub amplitude lossis offset theem ntawm lub teeb liab tuaj yeem hloov kho siv ob lub nyees khawm. Muaj ib lub mini-vaj huam sib luag rau kev ua haujlwm nrog cov ntaub ntawv. Nrog nws, cov txiaj ntsig kev sim tuaj yeem khaws cia tam sim ntawdqhib.
Yuav kom tus neeg siv tuaj yeem hloov pauv tus qauv tus nqi, lub tshuab hluav taws xob muaj tus tswj hwm tshwj xeeb. Los ntawm tus lej muaj nuj nqis, koj tuaj yeem synchronize sai heev. Cov teeb liab tawm feem ntau yog nyob rau hauv qab ntawm lub cuab yeej hauv qab lub vijtsam. Kuj tseem muaj lub pob pib lub tshuab hluav taws xob.
khoom siv hauv tsev
Ua lub teeb liab lub tshuab hluav taws xob nrog koj tus kheej tes yog qhov teeb meem heev vim qhov nyuaj ntawm cov cuab yeej. Lub ntsiab tseem ceeb ntawm cov khoom siv yog suav tias yog tus xaiv. Nws yog xam nyob rau hauv tus qauv rau ib tug tej yam xov tooj ntawm raws. Feem ntau muaj ob lub microcircuits hauv lub cuab yeej. Txhawm rau kho qhov zaus, lub tshuab hluav taws xob xav tau lub tshuab hluav taws xob. Yog tias peb xav txog cov khoom siv ntau-channel, ces microcontrollers rau lawv yog haum rau KH148 series. Hloov pauv tsuas yog siv hom analog xwb.
Sine signal devices
Lub tshuab hluav taws xob sine yoj siv cov yooj yim heev. Hauv qhov no, amplifiers tsuas yog siv tau ntawm hom kev ua haujlwm. Qhov no yog qhov tsim nyog rau cov teeb liab ib txwm xa los ntawm cov resistors mus rau lub rooj tsavxwm. Potentiometers suav nrog hauv qhov system nrog tus nqi nominal tsawg kawg yog 200 ohms. Lub voj voog ua haujlwm pulse nyob ntawm qhov ceev ntawm cov txheej txheem tiam.
Rau qhov hloov pauv hloov pauv ntawm lub cuab yeej, cov blocks tau teeb tsa ntau lub channel. Qhov ntau zaus ntawm sinusoidal teeb liab generator hloov nrog kev tswj teb. Rau kev kuaj receivers, nws tsuas yog haum rau hom modulating. Qhov no qhia tias lub tshuab hluav taws xob yuav tsum muaj tsawg kawg yog tsib channels.
Tsawg zaus generator circuit
Lub tshuab hluav taws xob tsawg zaus (circuit qhia hauv qab) suav nrog cov tshuaj tiv thaiv analog. Potentiometers yuav tsum tsuas yog teem rau 150 ohms. Txhawm rau hloov qhov loj ntawm mem tes, modulators ntawm KK202 series yog siv. Generation nyob rau hauv cov ntaub ntawv no tshwm sim los ntawm capacitors. Yuav tsum muaj jumper nruab nrab ntawm cov resistors hauv Circuit Court. Lub xub ntiag ntawm ob qho tib si tso cai rau koj los nruab ib qho (tsawg zaus) hloov hauv lub teeb liab generator.
Yuav ua li cas tus qauv beep ua haujlwm
Txuas lub suab zaus teeb liab lub tshuab hluav taws xob, qhov hluav taws xob tau pib siv rau tus xaiv. Tom ntej no, cov alternating tam sim no dhau los ntawm ib pawg ntawm transistors. Tom qab hloov dua siab tshiab rau kev ua haujlwm, cov capacitors tau qhib. Kev vibrations yog tshwm sim ntawm qhov screen siv lub microcontroller. Txhawm rau kho qhov txwv zaus, yuav tsum muaj pins tshwj xeeb ntawm microcircuit.
Lub zog tso zis siab tshaj plaws hauv qhov no, lub tshuab hluav taws xob lub suab tuaj yeem ncav cuag 3 GHz, tab sis qhov yuam kev yuav tsum tsawg. Ua li no, ib tug limiter yog ntsia ze ntawm lub resistor. Lub suab nrov yog pom los ntawm qhov system ntawm tus nqi ntawm qhov txuas. Theem modulation Performance index nyob ntawm qhov kev hloov pauv tam sim no nkaus xwb.
Sib tov teeb liab ntaus ntawv daim duab
Tus qauv oscillator Circuit Court ntawm hom no muaj ntau lub channel xaiv. Nyob rau tib lub sijhawm, muaj ntau tshaj li tsib qhov tawm ntawm lub vaj huam sib luag. Nyob rau hauv cov ntaub ntawv no, lub siab tshaj plaws zaus txwv tau teem rau 70 Hz. Capacitors nyob rau hauv ntau cov qauv muaj nyob rau hauv lub peev xwm ntawm tsis ntau tshaj 20pF. Resistor feem ntau suav nrog tus nqi nominal ntawm 4 ohms. Lub sij hawm installation ntawm thawj hom yog nyob rau nruab nrab 2.5 s.
Vim muaj qhov txwv bandwidth, lub zog rov qab ntawm chav tsev tuaj yeem ncav cuag 2 MHz. Qhov zaus ntawm qhov spectrum nyob rau hauv cov ntaub ntawv no tuaj yeem hloov kho siv lub modulator. Muaj cais tawm rau cov zis impedance. Qhov kev ua yuam kev tsis meej hauv Circuit Court yog tsawg dua 2 dB. Cov kev hloov pauv hauv cov txheej txheem muaj nyob hauv PP201 series.
Arbitrary Waveform Device
Cov khoom siv no yog tsim los rau qhov yuam kev me me. Lawv muaj ib tug saj zawg zog sequencing hom. Tus txheej txheem selector Circuit Court suav tias yog rau lub channel. Qhov tsawg kawg nkaus zaus yog 70 Hz. Qhov zoo impulses tau pom los ntawm lub tshuab hluav taws xob ntawm hom no. Capacitors nyob rau hauv Circuit Court muaj ib tug capacitance ntawm tsawg kawg yog 20 pF. Cov zis tsis kam ntawm lub cuab yeej yog khaws cia txog li 5 ohms.
Cov teeb liab tshuab hluav taws xob no sib txawv heev hauv lub sijhawm tsis ua haujlwm. Nws yog kev cob cog rua, raws li txoj cai, nrog rau hom connector. Raws li qhov tshwm sim, lub sijhawm nce ntawm 15 mus rau 40 ns. Nyob rau hauv tag nrho, muaj ob hom nyob rau hauv cov qauv (linear, as well as logarithmic). Nrog lawv cov kev pab, lub amplitude yuav hloov tau. Qhov yuam kev hauv qhov no tsawg dua 3%.
Kev hloov kho ntawm cov teeb meem nyuaj
Txhawm rau hloov kho cov teeb liab nyuaj, cov kws tshaj lij tsuas yog siv ntau cov channel xaiv hauv cov tshuab hluav taws xob. Lawv nruab nrog amplifiers yam tsis poob. Regulators yog siv los hloov cov kev khiav hauj lwm hom. Ua tsaug rau lub converter, tam sim no ua tas li nrogzaus hauv qab 60 Hz. Lub sijhawm nce yuav tsum tsis pub ntau tshaj 40 ns ntawm qhov nruab nrab. Rau lub hom phiaj no, qhov tsawg kawg nkaus capacitance ntawm lub capacitor yog 15 pF. Qhov kev tiv thaiv ntawm lub kaw lus rau lub teeb liab yuav tsum tau pom nyob rau hauv cheeb tsam ntawm 50 ohms. Distortion ntawm 40 kHz feem ntau yog 1%. Yog li, cov tshuab hluav taws xob tuaj yeem siv los ntsuas cov neeg txais.
Generators nrog built-in editors
Cov teeb liab generators ntawm hom no yooj yim heev los teeb. Regulators nyob rau hauv lawv yog tsim rau plaub txoj hauj lwm. Yog li, qhov kev txiav tawm zaus tuaj yeem hloov kho. Yog tias peb tham txog lub sijhawm teeb tsa, ces nws yog 3 ms hauv ntau tus qauv. Qhov no ua tiav los ntawm microcontrollers. Lawv txuas nrog lub rooj tsavxwm nrog jumpers. Transmission limiters tsis tau nruab rau hauv lub tshuab hluav taws xob ntawm hom no. Raws li daim duab kos duab, cov converters nyob tom qab cov selectors. Synthesizers tsis tshua muaj siv hauv cov qauv. Qhov siab tshaj plaws tso zis zog ntawm lub cuab yeej yog nyob rau theem ntawm 2 MHz. Qhov yuam kev hauv qhov no tsuas yog tso cai 2%.
Devices nrog cov txiaj ntsig digital
Cov teeb liab hluav taws xob nrog cov txiaj ntsig digital tau nruab nrog cov khoom txuas rau KP300 series. Resistors, nyob rau hauv lem, suav nrog tus nqi nominal yam tsawg kawg yog 4 ohms. Yog li ntawd, lub internal kuj ntawm lub resistor yog khaws cia loj. Cov txais hluav taws xob uas tsis muaj ntau tshaj 15 V muaj peev xwm ntsuas cov khoom siv no. Kev sib txuas rau lub converter tsuas yog ua los ntawm jumpers xwb.
Cov xaiv hauv cov tshuab hluav taws xob tuaj yeem pom peb- thiab plaub-channel. Chip hauv tus qauvchains feem ntau yog siv hom KA345. Hloov rau ntsuas ntsuas tsuas yog siv cov rotary xwb. Pulse modulation nyob rau hauv lub tshuab hluav taws xob tshwm sim sai heev, thiab qhov no yog ua tiav vim qhov siab sib kis coefficient. Koj yuav tsum xav txog qhov qis qis ntawm lub suab nrov ntawm 10 dB.
High clocked qauv
Lub tshuab hluav taws xob muaj lub suab nrov muaj lub zog siab. Internal tsis kam nws muaj peev xwm tiv taus qhov nruab nrab ntawm 50 ohms. Lub bandwidth ntawm cov qauv no feem ntau yog 2 GHz. Tsis tas li ntawd, nws yuav tsum nco ntsoov tias cov capacitors siv nrog lub peev xwm tsawg kawg yog 7 pF. Yog li, qhov siab tshaj plaws tam sim no yog khaws cia ntawm 3 A. Qhov siab tshaj plaws distortion hauv qhov system tuaj yeem yog 1%.
Amplifiers, raws li txoj cai, tsuas yog tuaj yeem pom hauv cov tshuab hluav taws xob ntawm hom kev ua haujlwm. Cov kev txwv hauv Circuit Court yog teem rau thaum pib, nrog rau thaum kawg. Lub connector rau xaiv hom teeb liab yog tam sim no. Microcontrollers tuaj yeem pom feem ntau hauv RRK211 series. Lub selector yog tsim los rau tsawg kawg yog rau lub channel. Rotary regulators nyob rau hauv cov khoom siv no muaj. Qhov kev txwv ntau zaus tuaj yeem teem rau 90 Hz.
Kev ua haujlwm ntawm cov teeb meem logic generators
Cov teeb liab hluav taws xob hluav taws xob no muaj tus nqi nominal tsis tshaj 4 ohms. Nyob rau tib lub sij hawm, lub internal kuj tseem khaws cia heev. Txhawm rau txo cov teeb liab kis tus nqi, kev ua haujlwm-hom amplifiers raug teeb tsa. Raws li txoj cai, muaj peb lub ntsiab lus ntawm lub vaj huam sib luag. Kev sib txuas nrog cov txwvKev kis tau tshwm sim tsuas yog los ntawm jumpers.
Cov keyboards hauv cov khoom siv tau nruab teb. Ob hom tuaj yeem xaiv. Rau theem kev hloov kho, cov teeb liab generators ntawm hom teev yuav siv tau. Lawv broadband suab tsis tshaj 5 dB. Qhov ntsuas qhov sib txawv zaus, raws li txoj cai, yog nyob ib ncig ntawm 16 MHz. Qhov tsis zoo suav nrog lub sijhawm ntev nce thiab poob. Qhov no yog vim qhov qis bandwidth ntawm microcontroller.
Keeb kwm Circuit Court nrog MX101 modulator
Tus qauv oscillator Circuit Court nrog xws li lub modulator muab rau ib tug selector rau tsib raws. Qhov no ua rau nws muaj peev xwm ua haujlwm nyob rau hauv hom linear. Qhov siab tshaj plaws amplitude ntawm qis load yog khaws cia ntawm 10 peaks. DC kev tsis ncaj ncees tshwm sim tsis tshua muaj. Cov zis tam sim no tsis nyob ib ncig ntawm 4 A. Qhov kev ua yuam kev ntau zaus tuaj yeem ncav cuag li 3%. Qhov nruab nrab nce lub sij hawm rau oscillators nrog cov modulators yog 50 ns.
Meander waveform tau txais los ntawm qhov system. Koj tuaj yeem kuaj cov receivers siv cov qauv no nrog lub zog tsis pub tshaj 5 V. Lub logarithmic cheb hom tso cai rau koj ua haujlwm tau zoo nrog ntau yam ntsuas. Qhov ceev ceev ntawm lub vaj huam sib luag tuaj yeem hloov tau yooj yim. Vim lub siab tso zis impedance, lub load ntawm lub converters raug tshem tawm.
