Time/Frequency Counter T4100U

Precise and versatile counter powered and controlled via USB port
Time interval measurement range: 0 – 1000 seconds
Precision (standard deviation) < 10 ps at time interval measured from 0 to 50 ms
Frequency range up to 3.5 GHz
Measurement rate up to 5·106 meas./s
Measurement of Allan Deviation (ADEV)
Totalize mode

Functions

Time Interval (between two pulses at two inputs or pulses appearing consecutively at a single, common input), Period, Pulse Width, Frequency, Allan Deviation, Totalize

Statistics

Mean, Min and Max Values, Standard Deviation

Graphics

Tables and plots of statistical distributions and frequency stability

Time Interval

Range

0 – 1000 seconds (Inputs A and B)

Resolution (LSB)

1.8 ps in single-shot measurements, may be reduced with averaging

Precision (Standard Deviation)

< 10 ps at time interval measured from 0 to 50 ms

< 10/ Sample _ Size ps with averaging

Frequency & Period

Range

Inputs A and B: 1 mHz to 200 MHz

Sensitivity < 75 mV RMS typ. (0.01 to 200 MHz)

Minimum slew rate: 10 V/μs

Input F: 100 MHz to 3.5 GHz

Sensitivity < -12 dBm (< 55 mV RMS) from 400 MHz to 3 GHz

Sensitivity < - 3 dBm (< 160 mV RMS) from 100 MHz to 3.5 GHz

Gate Time

selected from 1 μs to 10 s (reciprocal method)

Measurement Rate

up to 8•105 measurements/ sec (when measuring frequency in 1)

Totalize

Range

0 to 5x1011 counts

Input frequency

max. 200 MHz

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