Agilent Technologies B1500A Instrukcja Obsługi Pobierz pdf (Strona 479)

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Agilent B1500A/B1505A Programming Guide, Edition 11 4-163

Command Reference

QSV

linteg : Integration time for the leakage current measurement, in seconds.

Numeric expression. The available values are 0.02 to 2 s for a 50 Hz

line frequency, and 0.016667 to 1.6667 s for 60 Hz. But the value is

rounded as follows:

linteg = n / selected line frequency (n : integer. 1 to 100.)

The initial setting is 5/ selected line frequency. So this value is 0.1 s for

a 50 Hz line frequency, and approx. 0.083 s for 60 Hz.

hold : Hold time (in seconds). Numeric expression. This is the time from the

start of the first sweep step to the beginning of the delay time (delay1).

0 to 655.35 sec. 0.01 sec resolution. Initial setting = 0.

delay1 : Delay time (in seconds). Numeric expression. This is the time from the

start of each sweep step to the start of the measurement.

0 to 65.535 sec. 0.0001 sec resolution. Initial setting = 0.

delay2 : Delay time (in seconds). Numeric expression. This is the time from the

end of the each sweep step to the start of the next sweep step or the end

of the sweep. delay2 is not effective for the spot measurement.

0 to 65.535 sec. 0.0001 sec resolution. Initial setting = 0.

Example

Statements

OUTPUT @B1500;"QST 0.35,0.1,5,0.2,0.2"

This example sets a hold time of 5 s and a delay time of 0.2 s for delay1 and delay2.

The integration time for the capacitance measurement is 0.35 s for a line frequency

of 60 Hz, and 0.36 s for 50 Hz. The integration time for the leakage current is 0.1 s

for 50 Hz and 60 Hz.

Where, 0.35 is equal to 21 / 60 and 17.5 / 50. This means 0.35 s is not a suitable

value for the integration time at 50 Hz. Because n must be integer. In this case, the

integration time is automatically set to 0.36 s (=18 / 50). n is rounded to 18, not 17.

QSV

This command specifies the voltage sweep source and its parameters for the

quasi-static CV measurement (MM13).

Execution

Conditions

If you do not specify the channel number for the MM command, the channel

specified by the QSV command forces the sweep voltage, and measures the

capacitance.

Syntax QSV chnum,mode,vrange,start,stop,cvoltage,step[,Icomp]

1 2 ... 474 475 476 477 478 479 480 481 482 483 484 ... 597 598

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