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Chapter 4 Command Reference
Introduction
Programming Guide 4-65
Descriptions of the Measurement Functions—<function> (Cont.)
:MEASure[:SCALar][:VOLTage]:FREQuency:RATio?
[<expected_value>[,<resolution>]]
[, (@1), (@2) | (@1), (@3) | (@2), (@1) | (@3), (@1) ]
Measures Frequency Ratio between two inputs.
The measurement arming mode is set to “digits.” The Counter uses the
<expected_value> and <resolution> parameters to configure the number of digits
of resolution arming setting.
The Channel 1 and possibly Channel 2 trigger settings are coupled so that the
measurement channels have auto-trigger enabled at 50% with a positive slope.
<expected_value>
range for
Ch1
Ch
2
,
Ch1
Ch
3
:
1.00E-10 to 1.00E11
range for
Ch2
Ch
1
,
Ch3
Ch
1
:
1.00E-11 to 1.00E10
resolution: <expected_value> should be within 10% of ratio for
optimum arming configuration
default: 1
<resolution>
description: value indicates decade corresponding to least
significant digit of the result
range for
Ch1
Ch
2
,
Ch1
Ch
3
:
1E-25 to 1E8
value which indicates 3 to 15 digits of resolution for
the specified <expected>
range for
Ch2
Ch
1
,
Ch3
Ch
1
:
1E-26 to 1E7
value which indicates 3 to 15 digits of resolution for
the specified <expected>