ETAS
Functional Description
ES441.1 - User Guide
36
5.3.2
What to do in the Case of Oversampling by the Calibration
Software
In oversampling, a signal is acquired which has a higher sampling rate than is
actually necessary for the transfer of the signal bandwidth.
Fig. 5
-
7
Oversampling
If the relatively slow input signal is sampled with a high sampling rate (over
-
sampling), a new measure value cannot be determined each time sampling
takes place (see Fig. 5
7 on page 36). In such a case, the last valid measure
value acquired is used again.
5.4
Overview of the Measuring Capabilities of the ES441.1
The ES441.1 module can acquire digital signals at the four input channels and
evaluate these using various measuring capabilities:
Measuring Capability
Measure Signal
State (signal state)
State
Event counting
Events
Time measurement
Inactive duration
Active duration
Period duration
Frequency measure
-
ment
Frequency measurement within one period with
support of the relative error estimate during config
-
uration
Determination of the duty cycle
Period
NOTE
In the calibration software, a measurement channel can be assigned any
other measurement channel of the module in all measuring capabilities as
the qualifying channel.
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