18-43
Measure Commands
TEDGe?
TEDGe?
Query :MEASure:TEDGe? <meas_thres_txt>,<slope><occurrence> [,<source>]
Returns the time interval between the trigger event and the specified edge (threshold level,
slope, and transition) in oscilloscope mode. The query will return the time interval between
the reference plane and the specified edge in TDR mode.
<meas_thres_txt> is defined as UPPer, MIDDle, or LOWer to identify the threshold. <slope>
is { – (minus) for falling | + (plus) for rising | <none> (the slope is optional; if no slope is spec-
ified, + (plus) is assumed) }. <occurrence> is a numeric value representing the edge of the
occurrence. The desired edge must be present on the display. Edges are counted with 1 being
the first edge from the left on the display. <source> is {CHANnel<N> | FUNCtion<N> |
RESPonse<N> | WMEMory<N>} with <N>, for channels, functions, TDR responses, and
waveform memories, equal to 1, 2, 3, or 4.
NOTE TEDGe is measured for a value less than or equal to 20. A value greater than 20 returns data out of range.
Mode Oscilloscope and TDR modes.
Returned Format [:MEASure:TEDGe] <time>[,<result_state>]<NL>
<time> is the time interval between the trigger event and the specified edge (oscilloscope
mode) or the time interval between the reference plane and the specified edge in TDR mode.
If SENDvalid is ON, the <result_state> is returned with the measurement result. Refer to
Table 18-4 on page 18-39 for a list of the result states.
Example This example returns the time interval between the trigger event and the 90% threshold on
the second rising edge of the source waveform to the numeric variable, Time.
10 OUTPUT 707;":SYSTEM:HEADER OFF" !Response headers off
20 OUTPUT 707;":MEASURE:TEDGE? UPPER,+2"
30 ENTER 707;Time
NOTE When receiving numeric data into numeric variables, turn off the headers. Otherwise, the headers may cause
misinterpretation of returned data.
TDR:AVERage
Command :MEASure:TDR:AVERage {CHANnel<N> | RESPonse<N>}
Measures the average TDR impedance for the selected channel or response.
Restrictions TDR mode. Software revision A.05.00 and above (86100C instruments).
Query :MEASure:TDR:AVERage? {CHANnel<N> | RESPonse<N>}
The query returns the calculated average voltage of the specified source.
Returned Format [:MEASure:TDR:AVERage] <value> [,<result_state>]<NL>
The <value> argument is the calculated average TDR impedance. If SENDVALID is ON, the
<result_state> is returned with the measurement result. Refer to Table 18-4 on page 18-39
for a list of the result states.
Example 10 OUTPUT 707;”:SYSTEM:HEADER OFF”
20 OUTPUT 707;”:MEASURE:TDR:AVERAGE? RESP1”
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