Agilent Technologies 4294A Service Manual download pdf (Page 50)

50 Chapter 3

Setting Measurement Conditions

A Sample Program for Setting Measurement Conditions

Lines 90 to 130 These lines distinguish between an external controller and the

Instrument BASIC and set the GPIB address.

Lines 150 to 180 These lines substitute the settings of adapter selection, measurement

parameters, and limits of dc bias output and of dc bias range to the

variables Adapter$, Meas_para$, Dc_b_max, Dc_b_rng$,

respectively.

Lines 220 to 500 These lines substitute the parameter settings necessary for making a

list sweep table to the variables List_star(*), List_stop(*), Nop(*),

Osc_mode$(*), Osc_pow(*), Dc_b_mode$(*), Dc_bias(*),

Bw_fact$(*), and P_ave(*).

Lines 540 to 680 These line substitute the display-related parameter settings to the

variables Split$, Accumulate$, Disp_a$, Disp_b$, Fmt_a$, Fmt_b$,

Top_v_a, Btm_v_a, Ref_p_b, Ref_v_b, Scal_b, Phase_unit$, and

Exp_phase$.

Lines 700 to 710 These lines reset the Agilent 4294A and then set the adapter selection

to the variable Adapter$.

Lines 750 to 900 These lines make a list sweep table.

Lines 920 to 970 These lines set the measurement parameter to Meas_para$, limit of dc

bias output to Dc_b_max, dc bias range to Dc_b_rng$, On/Off setting

of dc bias to On and set the type of sweep to List Sweep and the

display format to Segment By Segment.

Lines 980 to 990 These lines set the display parameters common to traces A and B.

Lines 1030 to 1070 These lines set the display parameters of trace A.

Lines 1110 to 1180 These lines set the display parameters of trace B.

Lines 1200 to 1230 These lines wait for execution of the commands used to make settings,

indicate the message of completion, and end the program.

Example 3-1 Setting measurement conditions

10 DIM Adapter$[9],Meas_para$[5],Dc_b_rng$[9],Buff$[9]

20 DIM Osc_mode$(1:3)[9],Dc_b_mode$(1:3)[9],Bw_fact$(1:3)[9]

30 DIM Split$[9],Accumulate$[9],Disp_a$[9],Disp_b$[9]

40 DIM Fmt_a$[9],Fmt_b$[9],Phase_unit$[9],Exp_phase$[9]

50 REAL List_star(1:3),List_stop(1:3),Osc_pow(1:3),Dc_bias(1:3)

60 REAL Dc_b_max,Top_v_a,Btm_v_a,Ref_v_b,Scal_b

70 INTEGER Nop(1:3),P_ave(1:3),Ref_p_b

80 !

90 IF SYSTEM$("SYSTEM ID")="HP4294A" THEN

100 ASSIGN @Hp4294a TO 800

110 ELSE

120 ASSIGN @Hp4294a TO 717

130 END IF

140 !

150 Adapter$="OFF"

160 Meas_para$="IMPH"

170 Dc_b_max=15.0

180 Dc_b_rng$="M10"

190 !

200 ! List Sweep Table

210 ! -- Segment 1 --

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 517 518

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Agilent Technologies 4294A Service Manual Page 50

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