MDO3000 Programmer Manual.pdf - 第449页
Commands Listed in Alphabetical Order MA TH[1]:VERTical:UNIts Returns the math waveform vertical measurement unit value. Group Math Syntax MATH[1]:VERTi cal:UNIts? Examples MATH:VERTICAL :UNITS? might return MATH:VERT IC…
Commands Listed in Alphabetical Order
Group
Math
Syntax
MATH[1]:VERTical:POSition <NR3>
MATH[1]:VERTical:POSition?
Related Commands
CH<x>:POSition, REF<x>:VERTical:POSition
Arguments
<NR3> is a floating point number that spec
ifies the desired position in divisions
from the center graticule.
Examples
MATH1:VERTICAL:POSITION 1.3E+00 positions the Math 1 input signal
1.3 divisions higher than a position of 0.
MATH1:VERTICAL:POSITION? might return : MATH1:VERTICAL:POSITION
-1.3000E+00
indicating that the current position of Math 1 is 1.3 divisions
below the center graticule.
MATH[1]:VERTical:SCAle
This command specifies the vertical scale of the currently selected math type. This
setting controls the display only, graphically scaling these waveforms and having
no affect on the acquisition hardware. For a signal with constant amplitude,
increasing the scale causes the waveform to be displayed smaller. Decreasing the
scale causes the waveform to be displayed larger.
Group
Math
Syntax
MATH[1]:VERTical:SCAle <NR3>
MATH[1]:VERTical:SCAle?
Related Commands
CH<x>:SCAle,
REF<x>:VERTical:SCAle
Arguments
<NR3> is a floating point number that specifies the scale-per-division in the current
math vertical units. The range is from 1.0E-12 through 500.0E+12.
Examples
MATH1:VERTICAL:SCALE 100E-03 sets the Math scale to 100 mV per division.
MATH:VERTICAL:SCALE? might return :MA TH:VERTICAL:SCALE
1.0000E+00
indicating that the current scale setting of Math is 1 V per division.
2-418 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
MATH[1]:VERTical:UNIts
Returns the math waveform vertical measurement unit value.
Group
Math
Syntax
MATH[1]:VERTical:UNIts?
Examples
MATH:VERTICAL:UNITS? might return MATH:VERTICAL:UNITS "joules"
indicating that the math vertical unit label for unknown values is joules.
MATHVAR? (Query Only)
Queries both numerical values you can use within math expressions.
Group
Math
Syntax
MATHVAR?
Related Commands
M AT H VA R: VA R < x > , MATH[1]:DEFine
Returns
<NR3> are the stored numerical values.
Examples
MATHVAR? returns the values of all variables stored in locations 1 through 2.
MATHVAR:VAR<x>
This command specifies one of two different numerical values you can use within
math expressions. These values can range from -10.0e-18 to 1.0e+15; the default
values are 0.0. <x> specifies the location, 1 or 2, in which you can store values.
Stored math variables can be referenced within math expressions as VAR1 and
VA R 2 .
For example, the following command defines MATH1 as the product of Channel
1andma
th variable 1: MATH1:DEFINE "CH1 * VAR1".
Group
Math
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-419
Commands Listed in Alphabetical Order
Syntax
MATHVAR:VAR<x
> <NR3>
MATHVAR:VAR<x>?
Related Commands
MATHVAR:VAR<
x>,
MATH[1]:DEFine
Arguments
<NR3> is a floating point number that specifies the numerical value to be stored
in location x <1 through 2>.
Examples
MATHVAR:VAR2 -2.43E-5 stores the value -2.43e-5 in the second math variable
location.
MATHVAR:VAR2? might return:MATHVAR:VAR2 24.3000E-6 for the expression
stored in location 2.
MEASUrement? (Query Only)
Returns all measurement parameters.
Group
Measurement
Syntax
MEASUrement?
Examples
MEASUREMENT? might return :MEASUREMENT:IMMED:DELAY:DIREC TION
FORWARDS;EDGE1 RISE;EDGE2 RISE;:ME ASUREMENT:IMMED:TYPE
PERIOD;UNITS "s";SOURC E1 CH1;SOURCE2
CH2;:MEASUREMENT:MEAS1:DELAY:DIRECTION FORWARDS;EDGE1
RISE;EDGE2 RISE;:MEASU REMENT:MEAS1:STATE 1;TYPE
FREQUENCY;UNITS "Hz";SOURCE1 CH1;S OURCE2 CH2;COUNT
0;MAXIMUM 0.0000;MEAN 0.0000;MINIM UM 0.0 000;STDDEV
0.0000;:MEASUREMENT:MEAS2:DELAY:DIRECTION FORWARDS;EDGE1
RISE;EDGE2 RISE;:MEASU REMENT:MEAS2:STATE 1;TYPE PERIOD;UNITS
"s";SOURCE1 CH1;SOURCE 2 CH2;COUNT 0;MAXIMUM 0.0000;MEAN
0.0000;MINIMUM 0.0000;STDDEV 0.000 0;:MEASUREMENT:MEAS3:
DELAY:DIRECTION FORWARDS;EDGE1 RIS E;EDGE2
RISE;:MEASUREMENT:MEAS3:STATE 1;TYPE PK2PK;UNITS "V";SOURCE1
CH1;SOURCE2 CH2;COUNT 0;MAXIMUM 0.0000;MEAN 0.0000;MINIMUM
0.0000;STDDEV 0.0000;: MEASUREMENT:MEAS4:DELAY:DIRECTION
FORWARDS;EDGE1 RISE;EDGE2 RISE;:ME ASUREMENT:MEAS4:STATE
0;TYPE PERIOD;UNITS "s";SOURCE1 CH1;SOURCE2 CH2;COUNT
0;MAXIMUM 0.0000;MEAN 0.0000;MINIM UM 0.0000;STD DEV
0.0000;:MEASUREMENT:METHOD AUTO;REFLEVEL:METHOD
2-420 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual