Tektronix 468 Osciloscopio
Fabricante:
Modelo:
468
Fecha:
1984
Categoría:
Grupo:
Descripción:
DIGITAL STORAGE OSCILLOSCOPE

Información

The Tektronix 468 Oscilloscope is a portable digital storage Oscilloscope with a four-trace, dc-to-100 MHz, vertical deflection system. The 468 combines an easy-to-use storage function with cursor measurement of time and voltage. Measurement values are indicated on a four-digit, seven-segment LED display. NON STORE MODE In the NON STORE mode, the 468 operates as a conventional Oscilloscope that can display CH 1, CH 2, ADD, and A TRIG VIEW (external trigger only) simultaneously. The vertical deflection system has calibrated deflection factors ranging from 5 mV to 5 V per division. The horizontal deflection system has calibrated A Sweep rates from 0.5 s to 0.02 µs per division and is capable of operating in the following sweep modes: A,A intensified by B,A alternated with delayed B, and B delayed. The calibrated B Sweep rates are from 50 ms to 0.02 µs per division. The horizontal magnifier circuit feature increases each sweep rate by a factor of 10. This provides a maximum sweep rate of 2 ns per division when the TIME/DIV switch is in the 0.02 μs per division position. STORAGE MODE The 468 digital storage circuitry has a 10 MHz Useful Storage Bandwidth for the acquisition of signals, and will display the acquired waveform with a bright, flicker-free trace. With the digital storage feature, low-frequency signal analysis and waveform measurements-previously difficult or impossible to make-are easily performed. A choice of two standard and one optional signal acquisition modes are available: NORM and ENVELOPE (standard) and AVG (optional). Two storage functions are available to hold a display indefinitely for measurement and comparison: SAVE Storage Mode (stops acquisition) and SAVE REF (holds a reference display and continues acquisition in the selected Storage Mode). Waveform data may be acquired prior to or after the trigger using the PRE TRIG or POST TRIG Storage Window. Time and voltage measurements on the acquired waveform are easily made using the VOLTS and REV DEC 1981 468 Operators 1 TIME Cursor Functions, and the measurement values are indicated on a four-digit, seven-segment light-emitting diode (LED) display.

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Servicio y Manual del usuario
Type manuel:
Servicio y Manual del usuario
Páginas:
204
Tamaño:
6.11 Mbytes (6410622 Bytes)
Idioma:
english
Revisión:
revised
Manuel-ID:
070-2906-01
Fecha:
Formato:
Documento Scaned, todo legible.
Fecha de subida:
2014 11 28
MD5:
da1d46f70e784502c1aa3aed3f1e2888
Descargas:
971

Información

LIST OF ILLUSTRATIONS ... v LIST OF TABLES ... vii SAFETY SUMMARY ... viii INTRODUCTION ... 1 NON STORE MODE ... 1 STORAGE MODE ... 1 AVAILABLE OPTIONS ... 4 PREPARATION FOR USE ... 5 LINE VOLTAGE SELECTION ... 5 REGULATING RANGE SELECTION ... 6 POWER CORD ... 7 POWER ON SELF-VERIFICATION ... 8 Page CONTROLS, CONNECTORS AND INDICATORS. . . 9 VERTICAL ... 9 DISPLAY AND Calibrator ... 14 TRIGGERING ... 15 HORIZONTAL AND POWER ... 19 DIGITAL STORAGE ... 23 REAR PANEL ... 33 RIGHT SIDE PANEL ... 37 LEFT SIDE PANEL ... 37 OPERATING CONSIDERATIONS ... 39 GRATICULE ... 39 GROUNDING ... 39 SIGNAL CONNECTIONS ... 39 INPUT COUPLING CAPACITOR PRECHARGING ... 40 INSTRUMENT COOLING ... 40 Oscilloscope DISPLAYS ... 41 NON STORE DISPLAYS ... 41 NORMAL SWEEP DISPLAY ... 41 MAGNIFIED SWEEP DISPLAY ... 43 B DELAYED SWEEP DISPLAY ... 43 ALTERNATE HORIZONTAL SWEEP DISPLAY ... 44 X-Y DISPLAY ... 44 SINGLE SWEEP DISPLAY ... 45 DIGITAL STORAGE DISPLAYS ... 46 NORM STORAGE MODE DISPLAY ... 46 ENVELOPE STORAGE MODE DISPLAY_____48 AVG STORAGE MODE DISPLAY ... 49 SAVE STORAGE MODE DISPLAY ... 50 SAVE REF DISPLAY ... 51 OPERATOR’S CHECKS AND ADJUSTMENTS ... 52 TRACE ROTATION ADJUSTMENT ... 52 Probe COMPENSATION ... 53 ASTIGMATISM ADJUSTMENT ... 54 OPERATOR’S CHECKS AND ADJUSTMENTS (cont) Page VERTICAL GAIN CHECK ... 55 EXTERNAL HORIZONTAL GAIN CHECK_____56 VERTICAL DEFLECTION ACCURACY CHECK ... 56 VOLTS CURSOR ACCURACY CHECK ... 56 TIME CURSOR ACCURACY CHECK ... 57 MAKING DIGITAL STORAGE MEASUREMENTS . . 59 AC PEAK-TO-PEAK VOLTAGE ... 59 INSTANTANEOUS DC VOLTAGE ... 61 TIME DURATION ... 63 FREQUENCY ... 64 RISE TIME ... 65 WAVEFORM COMPARISON ... 67 TIME DIFFERENCE BETWEEN REPETITIVE PULSES ... 68 TIME DIFFERENCE BETWEEN TWO TIME-RELATED PULSES ... 69 MAKING DIGITAL STORAGE MEASUREMENTS (cont) PHASE DIFFERENCE BETWEEN SINUSOIDAL SIGNALS ... 71 SLOPE ... 74 EXPANSION OF NORM STORAGE DISPLAYS ... 75 ENVELOPE STORAGE MODE ... 77 Anti-Aliasing ... 77 Glitch Catching ... 79 Glitch Measurement ... 80 Missing Pulse ... 82 MAKING NONSTORAGE MEASUREMENTS ... 84 AC PEAK-TO-PEAK VOLTAGE ... 84 INSTANTANEOUS DC VOLTAGE ... 86 ALGEBRAIC ADDITION ... 87 COMMON-MODE REJECTION ... 89 AMPLITUDE COMPARISON ... 90 Page MAKING NONSTORAGE MEASUREMENTS (cont) TIME DURATION ... 91 FREQUENCY ... 92 RISE TIME ... 92 TIME DIFFERENCE BETWEEN TWO TIME-RELATED PULSES ... 93 TIME COMPARISON ... 95 PHASE DIFFERENCE ... 96 HIGH-RESOLUTION PHASE DIFFERENCE. . 98 DELAYED SWEEP MAGNIFICATION ... 98 Magnified Sweep Starts After Delay ... 99 Triggered Delayed Sweep Magnification . . 101 DELAYED SWEEP TIME MEASUREMENTS . 102 Time Duration ... 102 Frequency ... 103 Rise Time ... 104 Time Difference Between Repetitive Pulses 105 Time Difference Between Two Time-Related Pulses ... 107 OPTIONS 109 GENERAL DESCRIPTION ... 109 OPTION 02 OPERATING INFORMATION ... 109 A Typical System on the GPIB ... 110 Controllers, Talkers, and Listeners ... 111 GPIB Signal Line Definitions ... 111 GPIB Connector ... 115 Interface Functions and Commands ... 115 GPIB Switch Operation ... 119 Power-Up State ... 122 Power-Down State ... 122 GPIB Status Indicator ... 123 GPIB Status Bytes ... 123 468 GPIB Message Protocol ... 124 468 Message ... 125 Calculating Coordinate Values ... 129 Driver Program ... 133 Option 05 TV SYNC SEPARATOR ... 140 General Information ... 140 Specification ... 142 Furnished Accessories ... 143 Installation of the Video Graticule ... 143 OPTIONS (cont) Vertical Calibration for CCIR and NTSC Video Page Graticules ... 143 Operation of the Sync Separator ... 144 Vertical Operating Modes—Special Considerations ... 145 Typical Operation ... 146 Selecting an Individual Line ... 147 Special Measurements ... 148 Identifying Fields, Frames, and Lines in 525/60 and 625/50 TV Systems ... 149 OPTION 11 OPERATING INFORMATION ... 151 Introduction ... 151 Setting Up the Option ... 151 Using the Option ... 152 SPECIFICATION 155 Accessories 192 STANDARD Accessories INCLUDED ... 192 OPTIONAL Accessories ... 192 CHANGE PAGE

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