Section 7: TSP command reference
Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-192
2657A-901-01 Rev. B/December 2012
Details
This setting controls the aperture of measurements made for contact check. It does not affect the
smu
X
.measure.nplc
aperture setting.
The speed setting can have a dramatic effect on the accuracy of the measurement (see specifications).
Example
smua.contact.speed = smua.CONTACT_SLOW
Configure contact check for higher accuracy
on SMU channel A.
Also see
(on page 2-51)
(on page 2-37)
(on page 7-189)
(on page 7-211)
smuX.contact.threshold
This attribute stores the resistance threshold for the
smu
X
.contact.check()
function.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Instrument reset
SMU reset
Recall setup
Not saved
100 (100
Ω
)
Usage
rValue
= smu
X
.contact.threshold
smu
X
.contact.threshold =
rValue
rValue
The resistance above which contact check should fail (measured in ohms)
X
Source-measure unit (SMU) channel (for example,
smua.contact.threshold
applies to SMU channel A)
Details
The threshold should be set to less than 1 k
Ω
.
Example
smua.contact.threshold = 5
Set the contact check threshold for SMU channel A to 5
Ω
.
Also see
(on page 2-51)
(on page 2-37)
(on page 7-189)
(on page 7-211)
Содержание 2657A
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