The Keithley driver is not a supported National Instruments driver, but I’ll try to help you the best I can. Is this a VI that you had created? The problem happened when I chose the sweep in terms of voltage rather than current. Message 10 of Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. I use the ” Keithley buffer read. Are you able to take a voltage sweep on a transistor?
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Nanotechnology, differential conductance, pulsed sourcing ksithley resistance Optoelectronics, pulsed I-V Measuring resistance with low power Replacement for lock-in amplifiers Measuring resistance with low noise A: I have trouble reading out the buffer in the keithley A nanovlotmeter after a measurement sweep.
Delta Mode Keithley originally developed the delta mode method for making low noise measurements of voltages and resistances. But I could not figure out how to set it right. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Simple Programming Both current sources are fully programmable via the front panel controls, or from an external controller via RS or GPIB interfaces. Message 1 keithhley The output voltage can be set from 0. Differential conductance measurements are among the most important and critical measurements made on non-linear tunneling devices and on low temperature devices.
Data can be obtained in a single measurement pass, rather than by averaging the result of keithpey sweeps, which is both time-consuming and prone to error.
I know i can also address the A via the ‘s vi’s and a rs cable, but i want to address it directly via GPIB for added flexibility. This voltage sweep function works fine over a resistor, but not over a transistor. Doesn’t that kinda raise a flag?
The Need for Precision, Low-Current Sourcing Device testing and characterization for today’s very small and power-efficient electronics requires sourcing low-current levels, which demands the use of a labviiew, low-current source.
The advanced tools in the package support delta mode, differential conductance, and pulse mode measurements.
View Cart My Account Lower stimulus currents produce lower – and harder to measure – voltages across the device. Message 10 of Nudge I like Keithley intsruments but they are going to obsolete themselves if they don’t snap to it and write drivers that work.
Essentially, delta mode automatically triggers the current source to alternate the signal polarity, then triggers a nanovoltmeter reading at each polarity.
Message 6 of I noticed you selected 0 A for both the current start and stop values. At this point, you may want to contact Keithley.
keithley A readout with GPIB – Discussion Forums – National Instruments
I don’t know if you can setup such a “transistor”measurement!? Even small amounts of heat kithley by the measurement process itself can raise the DUT’s temperature, skewing test results or even destroying the device. Message 5 of 5.
Message 3 of 5. Please attach this VI to the reply of this post or point me in the direction to where you had found it.
I think that the plus with the conductance measurement software from Keithley are designed for resistor-like device: I perform a current sweep with steps 2812a the and want to measure the resulant voltage and store it in the buffer of the A.
This may be the source of the warning; the sweep is starting and stopping at 0 A. Are you able to take a voltage sweep on a transistor? Message 2 of Message 8 of It is an example software written by the Keithley.