Kev taw qhia ntsig txog X-axis plug-in ib feem ntawm oscilloscope
(1) "t/div" scanning ceev xaiv hloov thiab zoo-tuning knob. Qhov txav ceev ntawm X-axis lub teeb pom kev yog txiav txim siab los ntawm nws, thiab muab faib ua 21 qib ntawm 0.2μs rau 1s. Thaum lub hloov "fine-tune" lub potentiometer yog rotated kiag li clockwise thiab hloov mus txuas nrog, nws yog "calibration" txoj hauj lwm. Lub sijhawm no, tus nqi qhia ntawm "t / div" yog tus nqi tiag tiag ntawm kev ntsuas nrawm.
(2) "Expand, rub × 10" scanning ceev expansion ntaus ntawv. Nws yog ib tug push-rub. Thaum nws raug nias rau kev siv ib txwm, lub scanning ceev ntawm txoj hauj lwm rub nce 10 zaug. Tus nqi qhia ntawm "t / div" yuav tsum tau muab xam raws li. Siv "Extended Pull × 10" yog tsim rau kev soj ntsuam cov ntsiab lus waveform.
(3) "→ ←" X-axis txoj hauj lwm hloov kho pob qhov rooj. Nws yog kab rov tav txoj hauj lwm hloov potentiometer ntawm X-axis lub teeb kab thiab yog lub tes tsho-ncej qauv. Lub nplhaib sab nraud yog ib qho khoom siv kho kom haum. Tig nws clockwise kom txav lub hauv paus mus rau sab xis, thiab tig nws counterclockwise kom txav lub hauv paus mus rau sab laug. Lub pob qhov me me tso rau ntawm lub tes tsho ncej yog cov khoom siv kho kom zoo, haum rau kev kho cov teeb liab nthuav dav.
(4) Lub "sab nraud trigger, X sab nraud" qhov (socket) txais BNC hom qhov (socket). Thaum siv ib qho kev cuam tshuam sab nraud, nws ua haujlwm raws li lub qhov (socket) rau kev sib txuas cov cim qhia sab nraud. Nws kuj tseem siv tau los ua lub teeb liab input qhov (socket) thaum X-axis amplifier txuas nrog sab nraud. Nws input impedance yog kwv yees li 1MΩ. Thaum siv sab nraud, tus nqi siab tshaj plaws ntawm cov teeb liab tawm tswv yim yuav tsum tsawg dua 12V.
(5) "Trigger level" knob Trigger level adjustment potentiometer knob. Siv los xaiv qhov taw tes taw qhia ntawm lub tswv yim teeb liab waveform. Tshwj xeeb, nws yog los kho lub sijhawm pib scanning thiab txiav txim siab ntawm qhov twg hauv qhov taw qhia lub teeb liab waveform lub scan tau tshwm sim. Thaum tig nws clockwise, qhov taw tes taw tes rau qhov zoo ntawm lub teeb liab waveform; Thaum tig nws counterclockwise, tus taw tes taw tes nyhav rau qhov tsis zoo ntawm lub teeb liab waveform.
(6) "Stability" ua rau kev ruaj ntseg zoo-tuning pob qhov rooj. Nws yog siv los hloov lub xeev ua hauj lwm ntawm lub scanning Circuit Court, uas feem ntau yuav tsum tau nyob rau hauv lub triggering lub xeev. Txoj kev hloov kho yog los teeb tsa Y-axis input coupling hom xaiv (AC-hauv av-DC) hloov mus rau hauv av txoj haujlwm, teeb tsa V / div hloov mus rau qib siab tshaj plaws, thiab siv cov pob khawm kom txav deb ntawm tus kheej. - xeev siab. Tig lub stability potentiometer clockwise nrog ib tug me me screwdriver mus rau qhov kawg, thiab lub scanning Circuit Court yuav tsim ib tug self-excited scan, thiab ib tug scanning kab yuav tshwm rau ntawm qhov screen; ces maj mam tig nws counterclockwise kom txog thaum lub scanning kab cia li ploj. Lub sij hawm no, lub scanning Circuit Court yog nyob rau hauv lub triggering lub xeev. Nyob rau hauv lub xeev no, thaum ntsuas nrog ib tug oscilloscope, koj tsuas yog yuav tsum tau kho cov qib pob qhov rooj kom tau ib tug ruaj khov waveform ntawm lub vijtsam, thiab koj tuaj yeem kho thiab xaiv qhov chaw pib ntawm lub waveform ntawm qhov screen ntawm lub siab nyiam. Rau ob peb oscilloscopes, thaum lub stability potentiometer tig counterclockwise mus rau hauv qab, ib tug scanning kab tshwm nyob rau hauv lub screen; tom qab ntawd maj mam tig nws clockwise kom txog thaum cov kab scan ploj ploj ntawm qhov screen, thiab lub scanning circuit nyob rau hauv lub xeev triggering.
(7) "Internal, sab nraud" ua rau qhov chaw xaiv hloov. Thaum muab tso rau hauv "hauv" txoj hauj lwm, lub scanning trigger teeb liab yog muab los ntawm ntsuas lub teeb liab ntawm Y-axis channel; Thaum muab tso rau hauv "sab nraud" txoj hauj lwm, lub teeb liab tshwm sim los ntawm lub teeb liab sab nraud qhia los ntawm "sab nraud trigger X sab nraud" input davhlau ya nyob twg.
(8) "AC", "AC (H)" thiab "DC" trigger coupling hom hloov. "DC" iav yog DC coupling lub xeev, haum rau cov cim qhia uas hloov maj mam los yog muaj zaus tsawg heev (xws li tsawg dua 100Hz). Txoj haujlwm "AC" yog AC coupling xeev. Txij li thaum DC tivthaiv nyob rau hauv lub triggering raug txiav tawm, lub triggering kev ua tau zoo tsis cuam tshuam los ntawm DC tivthaiv. Cov ntaub ntawv "AC (H)" yog AC coupling xeev nrog tsawg zaus tsub zuj zuj. Thaum soj ntsuam high-frequency complex nthwv dej uas muaj cov khoom siv tsawg zaus, cov teeb liab tshwm sim ua ke los ntawm cov lim dej siab, uas txwv tsis pub cov suab nrov tsawg thiab cov teeb meem tsawg zaus (tsawg zaus hauv qab 2 MHz). tivthaiv) kom tsis txhob waveform fluctuations tshwm sim los ntawm cuav triggering.
(9) "High zaus, ib txwm, tsis siv neeg" txhais hom hloov. Siv los xaiv cov txheej txheem sib txawv los hloov mus rau qhov ntsuas ntsuas sib txawv thiab lub hom phiaj kev xeem. "High frequency" iav, xaiv cov iav no thaum qhov zaus siab heev (xws li siab dua 5MHz) thiab tsis muaj amplitude txaus los ua kom lub zog ruaj khov. Lub sijhawm no, lub scan yog nyob rau hauv lub xeev high-frequency trigger, thiab lub high-frequency teeb liab (200kHz teeb liab) generated los ntawm lub oscilloscope nws tus kheej synchronizes lub teeb liab ntsuas. Tsis tas yuav kho cov pob qhov rooj ntau zaus. Ib qho kev ruaj khov waveform tuaj yeem tshwm sim ntawm qhov screen. Nws yog ib qho yooj yim rau kev khiav lag luam thiab yog qhov zoo rau kev soj ntsuam cov teeb liab waveforms siab. Hom "ib txwm" siv lub teeb liab tawm tswv yim los ntawm Y-axis lossis lwm qhov chaw sib cuag los ua rau lub scan, uas yog ib qho kev siv feem ntau ua rau kev scan. Nyob rau hauv "Auto" hom, lub scan yog nyob rau hauv ib tug tsis siv neeg lub xeev (zoo ib yam li lub high-frequency triggering hom), tab sis koj muaj peev xwm soj ntsuam ib tug ruaj khov waveform yam tsis tau kho cov qib pob qhov rooj. Nws yog ib qho yooj yim rau kev khiav lag luam thiab yog qhov zoo rau kev soj ntsuam cov cim qis dua.
(10) "+, -" ua rau lub polarity hloov. Thaum siv "+" txoj hauj lwm, qhov nce ntawm qhov taw qhia teeb liab yog siv, thiab thaum siv "-" txoj hauj lwm, qhov poob ntawm qhov taw qhia teeb liab yog siv los ua rau lub scanning Circuit Court.
