HP Saw E4419B Manuale Utente Pagina 84
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HP4402.book : chapter2.fm 44 Fri Feb 12 15:32:45 1999
Power Meter Operation
Measuring Pulsed Signals
2-44 HP E4419B User’s Guide
Measuring Pulsed Signals
The power meter can be used to measure the power of a pulsed signal. The
measurement result is a mathematical representation of the pulse power
rather than an actual measurement (assumes constant peak power). The
power meter measures the average power of the pulsed input signal and
then divides the measurement result by the duty cycle value to obtain the
pulse power reading. The allowable range of values is 0.001 % to 100 %.
The default value is 1.000%.
If duty cycle is enabled then “Dty Cyc” is displayed.
Note Pulse measurements are not recommended using HP E4412A and
E4413A power sensors.
An example of a pulsed signal is shown in Figure 2-10.
Figure 2-11: Pulsed Signal
Power
Time
B
A
Duty Cycle = A
B
- User’s Guide 1
- Legal Information 3
- Limitation of Warranty 4
- Exclusive Remedies 4
- Equipment Operation 5
- General Safety Considerations 6
- IEC 1010-1 Compliance 7
- Statement of Compliance 7
- User Environment 7
- Installation Instructions 7
- Regulatory Information 8
- Declaration of Conformity 9
- List of Related Publications 10
- HP E4419B Options 11
- About this Guide 12
- Table of Contents 13
- .................... 2-27 14
- ........................ 2-29 14
- List of Figures 17
- List of Tables 19
- Getting Started 21
- Turning On the Power Meter 23
- The Front Panel at a Glance 24
- The Display Layout 27
- Selecting Your Display Layout 31
- Display Tutorial 32
- Window Symbols 34
- 1 of N Entry Window 35
- Numeric or Alphanumeric Entry 35
- The Rear Panel at a Glance 36
- Adjusting the Carrying Handle 38
- Rack Mounting the Power Meter 39
- General Information 43
- Running Time 43
- Charging Times 44
- Backlight 44
- Battery Removal/Replacement 45
- 2-6 HP E4419B User’s Guide 46
- Zeroing the Power Meter 47
- Zero/Cal Lockout 47
- Calibrating the Power Meter 48
- 2-12 HP E4419B User’s Guide 52
- 1 2 3 4 5 6 7 8 53
- HP E4419B User’s Guide 2-15 55
- Procedure 56
- Power Sensors 58
- Making the Measurement 62
- HP E4419B User’s Guide 2-27 67
- 2-28 HP E4419B User’s Guide 68
- HP E4419B User’s Guide 2-29 69
- Offset Tables 70
- Making Relative Measurements 77
- Setting the Resolution 78
- Setting Offsets 79
- Setting Averaging 81
- Step Detection 83
- Measuring Pulsed Signals 84
- Setting Measurement Limits 86
- Setting Window Limits 87
- Checking for Limit Failures 90
- Channel Measurements 92
- Making Ratio Measurements 94
- Setting the Range 98
- RS232/RS422 100
- Power Meter Operation 101
- Remote Interface Overview 102
- HP E4419B User’s Guide 2-63 103
- Recorder Outputs 105
- Leveling a Source Output 106
- 2-68 HP E4419B User’s Guide 108
- Presetting the Power Meter 110
- 2-72 HP E4419B User’s Guide 112
- • is set to “Off” 112
- TTL Inputs Off/On 112
- Self Test 113
- Remote Testing 116
- Test Descriptions 117
- Operator Maintenance 120
- Contacting Hewlett-Packard 121
- Check the Basics 122
- Instrument serial numbers 122
- GB12345678 123
- Sales and Service Offices 124
- 2-88 HP E4419B User’s Guide 128
- Menu Reference 129
- Introduction 130
- The Front Panel Menu Maps 131
- Frequency/Cal Fac Menu 132
- Meas Setup Menu 133
- Rel/Offset Menu 134
- Save/Recall Menu 134
- System Inputs Menu (1 of 4) 135
- System Inputs Menu (2 of 4) 136
- System Inputs Menu (3 of 4) 137
- System Inputs Menu (4 of 4) 138
- Zero/Cal Menu 139
- Front Panel Menu Reference 140
- Frequency 141
- More More 146
- Diagrammatical Hardkeys 164
- 3-38 HP E4419B User’s Guide 166
- Error Messages 167
- Specifications 179
- Power Meter Specifications 181
- Accuracy 182
- Power Reference 183
- Measurement Speed 184
- Zero Drift of Sensors 185
- Measurement Noise 185
- Settling Time 187
- Power Sensor Specifications 190
- General Characteristics 192
- Environmental Characteristics 193
- Dimensions 194
- Remote Programming 194
- Non-Volatile Memory 195
- 5-18 HP E4419B User’s Guide 196
- 3-19, 3-26 200
- , 1-8, 3-3 202
- "Zero/Cal" 203
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