Section 2: General operation
Model 2450 Interactive SourceMeter® Instrument Reference Manual
2-92
2450-901-01 Rev. B/September 2013
Source current, measure voltage, and set measure units to ohms
If you want to make resistance readings by sourcing current and measuring voltage, you can use this
method.
The examples below use a 100 k
Ω
device under test. The code:
•
Makes five readings by sourcing 5e-6 A
•
Measures voltage with autorange enabled
•
Sets the measure units to ohms
•
Uses offset compensation
•
Retrieves the source and measure values
Even though the measurement units are in ohms, the measurement range is 2 V.
Using SCPI:
Send the following code:
*RST
SENSe:FUNCtion "VOLT"
SENSe:VOLTage:RANGe:AUTO ON
SENSe:VOLTage:UNIT OHM
SENSe:VOLTage:OCOM ON
SOURce:FUNCtion CURR
SOURce:CURRent 5e-6
SOURce:CURRent:VLIM 10
SENSe:COUNT 5
OUTPut ON
TRACe:TRIGger "defbuffer1”
TRACe:DATA? 1, 5, "defbuffer1", SOUR, READ
OUTPut OFF
The front-panel display will look similar to the following example.
Figure 54: Resistance measurement SIMV SCPI example
