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52 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP
SENS:PER:MODE
• *RST Condition: SENS:FUNC:COND and INP:POL NORM for all
digital SCP channels
• Send with VXIplug&play Function: hpe14XX_cmd(...)
Usage See “About Period and Frequency Measurements” on page 16.
SENS:FUNC:PER (@144)
[SENSe:]FUNCtion:PWIDth
[SENSe:]FUNCtion:PWIDth <
avg_count
>,(@<
ch_list
>) configures
channels to measure the input signal pulse width.
See “Measure Pulse Width”
on page 20.
Parameters
Comments • <ch_list> must be channels on an E1538A SCP.
• <avg_count> sets the number of pulses to average when forming the
pulse duration value. More counts give more accurate readings, but
slower response to changing pulse widths.
• *RST Condition: SENS:FUNC:COND and INP:POL NORM for all
digital SCP channels.
• Send with VXIplug&play Function: hpe14XX_cmd(...)
Usage See “Measure Pulse Width” on page 20.
SENS:FUNC:PWID 10,(@146,147)
channels 46&47 meas pulse
width
[SENSe:]FUNCtion:QUADrature
[SENSe:]FUNCtion:QUADrature [<
preset_count
>,](@<
ch_list
>)
configures a pair of E1538 channels to measure quadrature count. See
“Sense Quadrature Position” on page 21.
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
avg_count numeric (uint32) 1 to 255 | MINimum | MAXimum seconds
ch_list string 100 - 163 none