Rigol DS1104Z Programming Guide

Chapter 2 Command System RIGOL
DS1000Z Programming Guide 2-51
:MEASure Commands
DS1000Z supports the auto measurement of the following 24 waveform parameters and provide the
statistic function for the measurement results. In additional, you can use the frequency counter to make
more precise frequency measurement. The :MEASure commands are used to set and query the
measurement parameters.
 Time Parameters
Period:
Defined as the time between the threshold middle points of two consecutive,
like-polarity edges.
Frequency:
Defined as the reciprocal of period.
Rise Time:
The time for the signal amplitude to rise from the lower limit to the upper limit of
the threshod.
Fall Time:
The time for the signal amplitude to fall from the upper limit to the lower limit of the
threshod.
+ Width:
The time difference between the threshold middle points of a rising edge to the
next falling edge of the pulse.
- Width:
The time difference between the threshold middle points of a falling edge to the
next rising edge of the pulse.
+ Duty:
The ratio of the positive pulse width to the period.
- Duty:
The ratio of the negative pulse width to the period.
 Delay and Phase
Delay 1→2 :
The time difference between the rising edges of source 1 and source 2. Negative
delay indicates that the selected rising edge of source 1 occurred after the selected
rising edge of source 2.
Delay 1→2 :
The time difference between the falling edges of source 1 and source 2. Negative
delay indicates that the selected falling edge of source 1 occurred after the selected
falling edge of source 2.
Phase 1→2 :
Phase difference calculated according to “Delay 1→2 ” and the period of source
1, expressed in degree. The calculation formula is as shown below.
Phase 1→2 :
Phase difference calculated according to “Delay 1→2 ” and the period of source
1, expressed in degree.The calculation formula is as shown below.
360
1
Delay
Phase
Period
= ×°
RiseTime
FallTime
Threshold Upper Limit
Threshold Middle Point
Threshold Lower Limit
+Width
-Width
Period

Rigol DS1104Z Specifications

General

Bandwidth	100 MHz
Channels	4
Sample Rate	1 GSa/s
Waveform Capture Rate	30, 000 wfms/s
Vertical Sensitivity	1 mV/div to 10 V/div
Time Base Range	5 ns/div to 50 s/div
Vertical Resolution	8 bits
Interface	USB Host, USB Device, LAN, AUX
Display	7 inch TFT LCD (800 x 480)
Trigger Types	Edge, Pulse, Video, Slope
Power Supply	100-240 V, 45-440 Hz
Memory Depth	24 Mpts (Single Channel), 12 Mpts (Dual Channel)