Agilent Technologies Agilent E5250A Podręcznik Użytkownika Pobierz pdf (Strona 113)

Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 1 3-19

Programming Examples Using Agilent VEE

Multi-Channel Spot Measurements

To make multi-channel spot measurements, use the following functions.

Table 3-3 Functions for Multi-Channel Spot Measurements

A program example is shown in Figure 3-15 on page 3-20. This program measures

bipolar transistor collector current and base current. The example uses the User

object of the Agilent VEE. See Figure 3-16 on page 3-21. The measurement setup is

shown in Figure 3-14.

Figure 3-14 Device Connection and Source Setup for Example Program

Description Function Parameters

Output Switch Setup hp4156b_setSwitch channel,state

Output Filter Setup hp4156b_setFilter channel,state

Integration Time Setup hp4156b_setInteg table,time,average

Forces dc bias hp4156b_force channel,mode,range,value,compliance,polarity

Executes measurement hp4156b_measureM channel[ ],mode[ ],range[ ],value[ ],status[ ]

Disables output hp4156b_zeroOutput channel

Collector

Base

Emitter

channel: SMU1

mode: V output

value: 0V

range: 2V

comp: 0.1A

polarity: AUTO

channel: SMU2

mode: V output

value: 0V

range: 2V

comp: 0.1A

polarity: AUTO

channel: SMU1

mode: I measure

value: Ic

range: AUTO

status: IcStatus

channel: SMU2

mode: I measure

value: Ib

range: AUTO

status: IbStatus

channel: SMU3

mode: V output

value: Vbe

range: 2V

comp: 0.1A

polarity: AUTO

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