Averaging Readings - HP E1313A Manual

Averaging Readings

Special Considerations
Chapter 4
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While the module is measuring, the driver can be queried for its status, and
data can be read from the FIFO and CVT. One command can be given
which changes the measurement setup, that is, the scan list can be changed
using
ROUTe:SEQuence:DEFine
command may also be given to force a continuous measurement to
complete. Any other changes to the measurement setup will not be allowed
until the measurement completes, or an
course, any commands or queries can be given to other instruments while
the HP E1313/E1413 is actively measuring.
The HP E1313/E1413 provides on-board averaging of readings. When you
set averaging (
ON CALCulate:AVERage[:STATe] ON
from the FIFO and/or CVT represents the average of two or more
measurements on that channel. Enabling averaging enables averaging for
all channels. The number of measurements per reading is set using
CALCulate:AVERage:COUNt 2 | 4 | 8 | 16 | 32 | 64 | 256
The following restrictions apply when performing channel averaging.
•
Because each channel can be allocated only one memory location for
intermediate calculation results, an individual channel number must
appear in a scan list only once, and use of
allowed.
•
In order to maintain high speed while averaging when
CALCulate:AVERage[:STATe]
ranging.
Example Command Sequence
ROUT:SEQ:DEF LIST1,(@100,101,102,103)Define scan LIST1.
ROUT:SCAN LIST1
SAMP:TIM LIST1,< t >
c
TRIG:SOUR TIM
TRIG:TIM:PER < t >
p
count
TRIG:COUN < >
source
ARM:SOUR < >
CALC:AVER:COUN 4
CALC:AVER ON
INIT:IMM
Understanding the HP E1313/E1413
. The
INITiate:CONTinuous OFF
ABORt command is given. Of
), a reading returned
.
(List-of-Lists) is not
LISTL
is , channels must use manual
ON
Select scan LIST1.
<t > can be 10µs to 32.768ms.
c
<t > can be .1ms - 6.5536 s.
p
<count> can be 1 - 32768 or
INF but it MUST be
≥ CALC:AVER:COUNt.
<source> can be BUS, EXT,
HOLD, IMM, or TTLTrg0 -
TTLTrg7.
Each reading averages of 4
measurements.
Enable averaging.
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