Tektronix TEKFAX ADA400A, Инструкция по эксплуатации

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Glossary
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ADA400A Differential Preamplifier
Gain
Increase in signal strength.
Ground
A connection or reference to the zero voltage potential of earth ground.
Ground loop
Two or more paths between grounded points in a circuit in which a current
circulates. This current may induce a voltage potential which corrupts
sensitive measurements.
Hertz
The unit of frequency, one cycle per second.
Megahertz (MHz)
A frequency of one million Hz (cycles per second), or 10
6
Hz.
Noise
An unwanted voltage or current in an electrical signal.
Normal mode
The signal of interest without the common-mode element.
Peak
The difference in amplitude between the maximum value and the average or
mean value of a waveform.
Peak-to-Peak
Amplitude measurement of the absolute difference between the maximum
and minimum amplitude.
Period
A timing measurement of the time covered by one complete signal cycle. It
is the reciprocal of frequency and is measured in seconds.
Phase
A timing measurement between two waveforms of the amount one leads or
lags the other. Phase is expressed in degrees where 360
_
comprises one
complete cycle of one of the waveforms.
RMS
Amplitude (voltage) measurement of the true Root-Mean-Square voltage.
Single ended
A connection to one input of the preamplifier only. The coupling of the other
side must be set to ground (GND).
Waveform
The shape or form (visible representation) of a signal expressed as amplitude
versus time (Y-T).