lecroy 93XXC-OM-E13 电路图.pdf

? ? LVSOD 6HWWLQJ?8S?WKH?LVSOD ,63/$<?6(783Press to view the DISPLAY SETUP menus (see page 116) and select from: ? Standard or XY Mode ? Single, Dual or Quad grids ? Persistence ? Dot Join ? Display and grid intensities ? “More Display Setup” menus. 6WDQGDUG?RU?;<?LVSODStandard Display Mode (menus page 116) allows presentation of source waveforms versus time (or versus frequency for FFTs). XY Display Mode (menus page 119) compares and contrasts one source waveform with another, and is used when selected traces have the same time or frequency span (time/div) and horizontal unit (in seconds or Hertz). XY is automatically generated as soon as two compatible traces are selected. If incompatible traces are selected, a warning message is displayed at the top of the screen. And if compatible traces are not matched in time, their XY diagram will be displayed showing the shifting in time or in frequency between them. (The T or f indicator is displayed in the Displayed Trace Label at left-of-screen.) 3HUVLVWHQFHIn Persistence Mode, the oscilloscope can display points so that they accumulate on-screen over many acquisitions. Persistence can be used in either Standard or XY display. Eye diagrams and constellation displays can be made using persistence, and the most recent sweep can be displayed as a “vector” trace over the Persistence display. Persistence is activated by selection of the “DISPLAY SETUP” “Persistence” menu (116). 6HH? “Picturing Signal History”, in the +DQGV?2Q?*XLGH, for more details on using Persistence. RadioFans.CN 收音机爱 好者资料库 ? LVSOD :KLFK?*ULG?All four possible traces can be shown at the same time on separate grids. When Parameters are used, the parameter-style grid comes into play automatically. Other grid styles, illustrated on the following pages, offer the choice of a variety of ways to view one or more traces in either Standard or XY Mode. Standard and XY Display Grids 6LQJOH RadioFans.CN 收音机爱 好者资料库 ? XDO 4XDG RadioFans.CN 收音机爱 好者资料库 ? LVSOD 3DUDPHWHUV ;<?RQO ? ;<?6LQJOH ;<?XDO ? LVSOD ,63/$<?6(783?6WDQGDUG With “Standard” selected, these menus appear: 3HUVLVWHQFH For activating Persistence (see next menu). RW?-RLQ To select Dot Join “ON” connecting the sample points with a line segment or “OFF”, when only the sample points are displayed. *ULGV For selecting the number of grids. :IRUP?7HW LQWHQVLW Adjusts the screen intensity for the waveform and associated text, using the attributed menu knob. *ULG?LQWHQVLW Adjusts the screen intensity of the grid, using the attributed menu knob. 1RWH? If “Wform + Text intensity” is turned down to 0 %, the waveform and text disappear! Press the DISPLAY button to return automatically to 90 % intensity. ? ,63/$<?6(783?6WDQGDUG?3HUVLVWHQFH?2Q? With both “Standard” and “Persistence” “On” selected, these menus appear: 3HUVLVWHQFH Activates Persistence. When “On”, this can be cleared and reset by pressing the CLEAR SWEEPS button or by changing any acquisition condition or waveform processing condition. RW?-RLQ To select Dot Join “ON” connecting the sample points with a line segment or “OFF”, when only the sample points are displayed. 3HUVLVWHQFH?6HWXS To access the “PERSISTENCE” Setup menus (see next page) *ULGV For selecting the number of grids. :IRUP?7HW LQWHQVLW Adjusts the screen intensity for the waveform and associated text, using the attributed menu knob. *ULG?LQWHQVLW Adjusts the screen intensity of the grid, using the attributed menu knob. 1RWH? If “Wform + Text intensity” is turned down to 0 %, the waveform and text disappear! Press the DISPLAY button to return automatically to 90 % intensity. ? LVSOD 3(56,67(1<When “XY” is selected from the first menu, these other menus appear. 3HUVLVWHQFH Ativates Persistence. When “On”, the other menus here do not change. RW?-RLQ To select Dot Join “ON” connecting the sample points with a line segment or “OFF”, when only the sample points are displayed. *ULGV For selecting the grid style. :IRUP?7HW LQWHQVLW Adjusts the screen intensity for the waveform and associated text, using the attributed menu knob. *ULG LQWHQVLW Adjusts the screen intensity of the grid, using the attributed menu knob.