SCPI Command Reference
17-81
Logarithmic current sweep
Logarithmic current sweep from 1mA to 100mA in 20 points:
*RST
SOUR:FUNC:MODE CURR
SOUR:SWE:SPAC LOG
SOUR:CURR:STAR .001
SOUR:CURR:STOP .1
SOUR:SWE:POIN 20
TRIG:COUN 20
SOUR:CURR:MODE SWE
OUTP ON
INIT
To determine the source values that will be generated:
Start:
0.001
Log
10
(Start):
-3
Stop:
0.1
Log
10
(Stop):
-1
LogStep = (Log
10
(Stop) - Log
10
(Start)) / (SWE:POIN -1)
= (-1 - (-3) / (20 - 1)
= 2/ 19
= 0.105263
Now add the LogStep value to Log
10
(Start) and to each subsequent result. This will create a
list of Log
10
Values. Next take the anti-log of each Log
10
Value to get the actual sweep values:
Value#
Log
10
Value
Sweep Value
1
-3.000000
0.001000
2
-2.894737
0.001274
3
-2.789474
0.001623
4
-2.684211
0.002069
5
-2.578948
0.002637
6
-2.473685
0.003360
7
-2.368422
0.004281
8
-2.263159
0.005456
9
-2.157896
0.006952
10
-2.052633
0.008859
11
-1.947370
0.011288
12
-1.842107
0.014384
13
-1.736844
0.018329
14
-1.631581
0.023357
15
-1.526318
0.029763
16
-1.421055
0.037927
17
-1.315792
0.048329
18
-1.210526
0.061584
19
-1.105263
0.078475
20
-1.000000
0.100000
Содержание 6430
Страница 26: ......
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Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
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