Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4 6-19
Programming Examples for VEE Users
Multi-Channel Spot Measurements
Multi-Channel Spot Measurements
To make multi-channel spot measurements, use the following functions.
Table 6-3 Functions for Multi-Channel Spot Measurements
A program example is shown in Figure 6-15 on page 6-20. This program measures
bipolar transistor collector current and base current. The example uses the User
object of the Agilent VEE. See Figure 6-16 on page 6-21. The measurement setup is
shown in Figure 6-14.
Figure 6-14 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
A
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
A
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