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Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 79
Auto-Gating (adaptive aperture)
1mSec to 1Sec for Frequency
1mSec to 1Sec for Perid (using SENS:PER:RANGE 1)
4mSec to 4Sec for Perid (using SENS:PER:RANGE 4)
Rotational Velocity Measure
Characteristics Extra Tooth Wheel or Missing Tooth Wheel
Range in RPS
to
Accuracy .01%
Resolution in RPS
where is per second
Minimum Pulse Width 500 nS
1
n
teeth
------- ------
100 000,
n
teeth
------- --------------
n
teeth
f×()
2
4.194MHz
------- --------------- -------
f
n
teeth
Pulse Width Measure
Periods Averaged 1 to 255
Range 5 µS to 1 S
Accuracy
±(250nS+0.1%)
Resolution 59.6 nSec
Frequency Source
Range 64 Hz to 40 KHz Square Wave
128 Hz to 40 KHz other shapes
Accuracy 0.01%
Resolution
f
out
2
4.194MHz
--------------------------
Pulse Source
Range 7.87 µsec to 1/f-7.87 msec continuous pulse
7.87 µsec to 7.812 msec single pulse per trigger
Accuracy 0.01%
Resolution 238.4 nsec