Agilent Technologies E8462A Manual do Utilizador descarregar pdf (Página 123)

Agilent E8462A Scanning Voltmeter Application Examples 121Chapter 4

Note: When the multimeter buffer fills, measurements are suspended until

readings are read from the buffer (by the computer) to make space available.

Voltage

Measurements

Line 90 initiates a DC voltage measurement.

2-Wire Ohms

Measurements

To make 2-wire measurements, change line 90 in the voltage measurement

example to read:

90 OUTPUT 70903;"MEAS:RES? (@100:131)"

4-Wire Ohms

Measurements

To make 4-wire measurements, change line 90 in the voltage measurement

example to read:

90 OUTPUT 70903;"MEAS:FRES? (@100:131)"

(NOTE: 4-wire channels are made by pairing banks 0 and 2, banks 1 and 3,

banks 4 and 6 and banks 5 and 7. Two lines from each bank will

automatically be paired to form the 4-wire channel)

10 !Dimension a computer array to store readings.

20 DIM Rdgs(1:32)

30 !Clear and reset the scanning voltmeter (voltmeter & multiplexer).

40 !See Figure 4-1 for module addresses.

50 CLEAR 70903

60 OUTPUT 70903;"*RST"

70 !Configure the multimeter for DCV measurements and

80 !specify the channel list to scan (channels 00 through 31).

90 OUTPUT 70903;"MEAS:VOLT:DC? (@100:131)"

100 !Enter and display measured readings. Note: The number of

110 !channels in the scan list must equal the number of elements in

120 !the array Rdgs to use Rdgs(*).

130 ENTER 70903;Rdgs(*)

140 PRINT Rdgs(*)

150 END

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Agilent Technologies E8462A Manual do Utilizador Página 123