5-16
Delta, Pulse Delta, and Differential Conductance
Model 6220/6221 Reference Manual
Return to
D Buffer readings
TRACe:DATA?
TRACe:DATA:TYPE?
TRACe:DATA:SELected? <start>, <count>
CALCulate2:DATA?
With readings stored in the buffer, use TRACe:DATA? to return all readings. Use
TRACe:DATA:TYPE? to determine the type of readings stored in the buffer
(returns NONE, DELT, DCON, or PULS).
Use the TRACe:DATA:SELected? command to specify a list of consecutive buffer
readings to return. For this command, the start and count are specified. The first
reading in the buffer is Rdg #0.
Example to return the first 10 buffer readings:
The CALC2:DATA? command is used to read the selected buffer statistic (mean,
standard deviation, maximum, minimum, or peak-to-peak).
See
for details on the buffer.
Measurement units
Volts, ohms, power or conductance
The readings from the Model 2182/2182A for Delta, Pulse Delta, or Differential
Conductance are sent to the Model 622x as voltage readings. These readings can
be displayed by the Model 622x as Volts (V), Ohms (
Ω
), power (Watts; W), or
conductance (Siemens; S) readings.
The default units for the Model 622x is volts. With Ohms (
Ω
) units or Siemens (S)
units selected, a reading is calculated as follows:
Ω
= V/I
S = I/V
Where: V is the Delta, Pulse Delta, or Differential Conductance voltage reading.
I is the current sourced by the Model 622x.
With Power units selected, power is calculated as follows:
1.
See
” for Pulse
Delta.
2.
See
” for Differential
Conductance.
TRACe:DATA:SELected? 0, 10
‘ Returns Rdg #0 through Rdg #9.
Delta:
Pulse Delta:
1
Differential Conductance:
2
W = I x V
W
PEAK
= I x V
W = I
AVG
x V
AVG
W
AVG
= I x V x Duty Cycle
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
Summary of Contents for 6220
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