Measurements 15
Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide 167
 
Time Measurements
The following figure shows time measurement points.
The default lower, middle, and upper measurement thresholds are 10%, 50%, and 
90% between Top and Base values. See "Measurement Thresholds" on page 175 
for other percentage threshold and absolute value threshold settings.
• "Period" on page 167
• "Frequency" on page 168
• "Counter" on page 169
• "+ Width" on page 169
• "– Width" on page 169
• "Bit Rate" on page 169
• "Duty Cycle" on page 170
• "Rise Time" on page 170
• "Fall Time" on page 170
• "Delay" on page 170
• "Phase" on page 171
• "X at Min Y" on page 173
• "X at Max Y" on page 173
Period
Period is the time period of the complete waveform cycle. The time is measured 
between the middle threshold points of two consecutive, like-polarity edges. A 
middle threshold crossing must also travel through the lower and upper threshold 
levels which eliminates runt pulses. The X cursors show what portion of the 
waveform is being measured. The Y cursor shows the middle threshold point.
Rise Time
+ Width
Fall Time
- Width
Period
Middle
Upper
Thresholds
Lower