Configuration and Calibration Guide HD0679 Rev 1.2.0 21
5.4
Filter Include
When set, only Unscaled values above the set point will be included in the filtered output. Set
to a low value to include all measurements. The default value is -10.
Time (s)
Unscale
d
Filtered Unscaled
(1 second Smoothing)
Raw Unscaled
Filter Include set Point
Figure 3: Raw and Filter Include Sensor Output
6 Typical Moisture Trace from a Hydronix Moisture Sensor in
Flowing Material
Figure 4 is a typical Raw Unscaled trace of a flowing material. The signal is erratic due to the
action of the material flowing past the sensor.
Raw Unscaled
Unscaled
Time (S)
Figure 4: Raw Unscaled Moisture Trace in Flowing Material
The positive peaks and negative troughs can be clipped using the Slew Rate Filters reducing
unwanted noise. After the signal has been through the Slew Rate Filters, and if selected the DSP
filter, the signal is smoothed further using the Filtering Time (Smoothing Time). The result is a
much clearer
representation of the moisture in the material (Figure 5).
Applying filters: Slew Rate + =light, Slew Rate - = light
Filtering time = 2.5 seconds
Unscaled
Time (s)
Raw Unscaled
Filtered
Unscaled
Figure 5: Graph showing the Filtered Signal
Содержание Hydro-Mix
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Страница 14: ...Chapter 1 Introduction 14 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
Страница 28: ...Chapter 2 Configuration 28 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
Страница 40: ...Chapter 3 Sensor Integration and Material Calibration 40 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
Страница 42: ...Chapter 4 Best Practices 42 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
Страница 48: ...Chapter 5 Sensor Diagnostics 48 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
Страница 52: ...Appendix A Document Cross Reference 52 Configuration and Calibration Guide HD0679 Rev 1 2 0 ...
