2461Type C User Manual
General 1-2
Racal Instruments
1998
Brief Description
The 2461 Type C card is a member of the 2460 series instruments.
The 2461 Type C card is a high performance Universal Counter
(UCT) offering eleven automatic measurement functions :
•
Frequency
•
Period
•
Time Interval
•
Time Interval Delay
•
Rise Time
•
Fall Time
•
Pulse Width
•
Frequency Ratio channel 1 to 2 (Ratio 3 to 2 optional)
•
Totalize
•
Phase
•
Voltage (Voltage High, Voltage Low and Average Voltage)
Outstanding
Resolution
The 2461 Type C card offers 200 MHz frequency range
measurements with a resolution going up to 10 digits per second.
In time interval the resolution is 1 ns in single shot and 100 ps in
average mode.
High Speed Time
Measurement
By using Timing Error Correction (TEC) in combination with
traditional recipromatic techniques, measurement time may be
minimized without any compromise in performance.
Figure 1-2, High Speed Time Measurement
Measurement
Programmable measurement Time-out helps the user to optimize
system performance when of the input signal is missing
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