YOKOGAWA DL7440 User Manual

9-7
IM 701450-01E
9
Waveform Computation
Explanation
This section describes the procedures for setting the binary computation in normal
computation mode. If the user-defined computation option is installed, you must first
enter normal computation mode as described in section 9.1. For a description of the
setup procedure of user-defined computation, see section 9.9.
Turning ON/OFF the Computed Waveform Display and Computed Waveform Label
See section 9.1.
Operator
Select the binary computation operator Bin as the operator of Math1 and Math2. The
waveform to be computed can be converted to a digital waveform of 0s and 1s with
respect to the specified threshold level.
Waveform to Be Computed
The waveforms on which computation can be performed are as follows:
Computation Name Source
Math1 One channel from CH1 to CH4
Math2 One channel from CH1 to CH4 and Math1
• On the menu, CH1 to CH4 may be indicated as C1 to C4 and Math1 as M1.
• To perform computation on CH5 to CH8 on the DL7480, the optional user-defined
computation function is required.
Scaling
Scaling is not available in binary computation. You can select Auto or Manual on the
menu, but the computed result is not affected. The scaling level is fixed.
Unit of Computed Waveforms
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Smoothing
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Threshold Level for Binary Computation
You can set the level (voltage value if set to voltage) for setting the data values to 1 or 0
in binary computation for computed waveforms Math1 and Math2, separately (see the
figure above). The range is 8 divisions within the screen. The resolution is 0.01
divisions.
Thr Upper
Set the level used to switch from 0 to 1.
Thr Lower
Set the level used to switch from 1 to 0.
1
0
Thr Upper (level used to switch from 0 to 1)
Thr Lower (level used to switch from 1 to 0)
Waveform to be computed
Computed waveform
Effects of Linear Scaling
Even when linear scaling is performed on the channel to be computed, it does not affect
the binary computation.
Maximum Record Length That Can Be Computed
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
9.3 Performing Binary Computation

YOKOGAWA DL7440 Specifications

General

Brand	YOKOGAWA
Model	DL7440
Category	Test Equipment
Language	English