HP 8530A, Руководство по эксплуатации и программированию, Страница: 335 / 439

HP-IB Programming Basics
Figure 18-1. Data Processing Stages in the Receiver
The following data arrays can be read by an external computer:
Raw Data
This data array contains the ratioed and averaged measurement data results . (Note: In F ast CW
mode , raw data is the only available format.)
T o transfer the data from this array to the computer , use the HP-IB command OUTPRAW n, where
n is the desired parameter (1, 2, 3 or 4). Refer to the HP 8530A the K eyword Dictionary for
syntax and other information on this command, or about any of the commands mentioned
below . The raw array data is in real,imaginary pairs . Raw data can be output for any
parameter at any time (assuming the parameter is actually being measured). (How can you tell
if a parameter is actually being measured? Answer: If a parameter is displayed on the screen,
it is being measured by the receiver . If a parameter is not displayed, it is not measured. F or
example , if you select a three-parameter display , P arameters 1, 2, and 3 are measured and
displayed, P arameter 4 is not measured.)
Corrected Data Array
In addition to ratioing and averaging, corrected data has been through:
Time Domain
Calibration
T able Delay , Electrical Delay
Magnitude Oset
Remember that these features must be ON to aect the data.
T o transfer data from this array to the computer , use the HP-IB command OUTPDATA . W e
learned earlier that you can select any R aw Data array for transfer . Y ou cannot do this with
the Corrected Data array . Instead, OUTPDATA outputs the data for the active parameter only .
The corrected data array is in real,imaginary pairs .
18-6 HP-IB Programming