Chapter 11 VirtualBench-Counter
Getting Started with VirtualBench 11-2 www.ni.com
The front panel of VirtualBench-Counter has the following features:
• Measurement Display—Displays the measurements, including the
type and units of the measurement.
• Measurement Mode Selector—Selects which measurement mode
you want to use, from left to right:
– Frequency—Measures the frequency of the unknown signal.
– Totalize (Count Edges)—Counts rising edges and accumulates
the total.
– Period—Measures the period of an unknown signal.
– High Pulse Width—Measures the positive pulse width of an
unknown signal.
– Low Pulse Width—Measures the negative pulse width of an
unknown signal.
– Duty Cycle—Measures the percentage of time that an unknown
signal is high versus its period.
– Time Between 2 Edges—Measures the amount of time between
a rising edge on one input and a rising edge on another input.
– Phase Angle—Measures the phase difference between two
unknown signals of the same frequency.
– Frequency Ratio—Measures the ratio of one frequency to
another.
– Encoder-Position—Monitors the relative position and number of
revolutions of a motion encoder.
– Encoder Speed—Measures the speed at which a motion encoder
moves.
• Main Control Buttons—The main control buttons include Run,
Single, and Reset:
– Run—Starts or stops the Counter acquisition.
– Single—Acquires a single measurement.
– Reset—Resets the Totalize (Count Edges) value or
Encoder-Position to 0.
• Maximum Measurement Time (seconds)—Determines the time
taken during a frequency measurement or the amount of time to wait
before timing out for the other measurements.
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