Product specifications

Instrumentation Laboratory Exercise 32

4.4 VEE programming

First, set up the analog input on channel 101, as done in previous

exercises. We want to read in V

as a full waveform or trace

consisting of many points acquired in rapid succession. Instead of

sampling the signal through the "MEAS:VOLT:DC?" command we will

have to set it up to read an array of points. We need to set up both

the number of points required as well as the frequency. Key in the

following commands one line at a time:

1 "SENS:VOLT:POL UNIP, (@101)" // Sets the input to

unipolar mode

2 "SENS:VOLT:STYP SING, (@101)" // Sets the channel to be

read relative to ground

3 "SENS:VOLT:RANG 10, (@101)" // Sets the channel to a 1

V maximum input

4 "ACQ:POIN 2000" // Sets up to read 2000

points

5 "ACQ:SRAT 10000" // Sets up read frequency

of 10 kHz

6 "ROUT:SCAN, (@101)" // Tells the DAQ to scan

channel 101 only

7 "DIG" // Starts the digitization

process